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Document and Entity Information - shares	6 Months Ended
Document and Entity Information - shares	Jul. 29, 2017	Aug. 30, 2017
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jul. 29, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q2
Trading Symbol	GME
Entity Registrant Name	GameStop Corp.
Entity Central Index Key	0001326380
Current Fiscal Year End Date	--02-03
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		101,307,160

Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Jul. 29, 2017	Jan. 28, 2017	Jul. 30, 2016
Current assets:
Cash and cash equivalents	$ 262.1	$ 669.4	$ 289.5
Receivables, net	185.4	220.9	126.6
Merchandise inventories, net	1,140.6	1,121.5	1,093.0
Prepaid expenses and other current assets	202.5	128.9	175.3
Total current assets	1,790.6	2,140.7	1,684.4
Property and equipment:
Land	19.7	18.6	18.1
Buildings and leasehold improvements	753.4	724.5	698.8
Fixtures and equipment	965.7	931.4	899.9
Total property and equipment	1,738.8	1,674.5	1,616.8
Less accumulated depreciation	1,281.4	1,203.5	1,135.9
Net property and equipment	457.4	471.0	480.9
Deferred Tax Assets, Net, Noncurrent	73.2	59.0	39.0
Goodwill	1,698.0	1,725.2	1,490.0
Other intangible assets, net	512.1	507.2	369.7
Other noncurrent assets	78.5	72.8	69.6
Total noncurrent assets	2,819.2	2,835.2	2,449.2
Total assets	4,609.8	4,975.9	4,133.6
Current liabilities:
Accounts payable	469.8	616.6	370.7
Accrued liabilities	855.8	1,090.9	682.4
Income taxes payable	12.1	54.0	3.4
Total current liabilities	1,337.7	1,761.5	1,056.5
Deferred income taxes	22.3	23.0	30.1
Long-term debt	816.4	815.0	813.5
Other long-term liabilities	121.7	122.3	82.5
Total long-term liabilities	960.4	960.3	926.1
Total liabilities	2,298.1	2,721.8	1,982.6
Commitments and Contingencies (Note 4)
Stockholders' equity:
Class A common stock — $.001 par value; 300.0 shares authorized; 101.3, 104.0 and 101.0 shares issued and outstanding	0.1	0.1	0.1
Additional paid-in capital	7.9	0.0	5.2
Accumulated other comprehensive loss	(1.1)	(47.3)	(38.8)
Retained earnings	2,304.8	2,301.3	2,184.5
Total stockholders’ equity	2,311.7	2,254.1	2,151.0
Total liabilities and stockholders’ equity	$ 4,609.8	$ 4,975.9	$ 4,133.6

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Jul. 29, 2017	Jan. 28, 2017	Jul. 30, 2016
Statement of Financial Position [Abstract]
Class A common stock, par value	$ 0.001	$ 0.001	$ 0.001
Class A common stock, shares authorized	300,000,000	300,000,000	300,000,000
Class A common stock, shares issued	101,300,000	101,000,000	104,000,000
Class A common stock, shares outstanding	101,300,000	101,000,000	104,000,000

Condensed Consolidated Statements Of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jul. 29, 2017	Jul. 30, 2016	Jul. 29, 2017	Jul. 30, 2016
Income Statement [Abstract]
Net sales	$ 1,687.6	$ 1,631.8	$ 3,733.5	$ 3,603.3
Cost of sales	1,063.9	1,014.1	2,407.3	2,310.1
Gross profit	623.7	617.7	1,326.2	1,293.2
Selling, general and administrative expenses	542.4	518.4	1,105.9	1,039.2
Depreciation and amortization	37.7	41.0	75.6	81.7
Operating earnings	43.6	58.3	144.7	172.3
Interest income	0.0	(0.3)	(0.2)	(0.5)
Interest expense	14.4	13.9	28.5	24.9
Earnings before income tax expense	29.2	44.7	116.4	147.9
Income tax expense	7.0	16.8	35.2	54.2
Net income	$ 22.2	$ 27.9	$ 81.2	$ 93.7
Basic	$ 0.22	$ 0.27	$ 0.80	$ 0.90
Diluted	0.22	0.27	0.80	0.90
Dividends per common share	$ 0.38	$ 0.37	$ 0.76	$ 0.74
Basic	101.4	104.0	101.3	103.9
Diluted	101.5	104.3	101.4	104.2

Condensed Consolidated Statements Of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 29, 2017	Jul. 30, 2016	Jul. 29, 2017	Jul. 30, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 22.2	$ 27.9	$ 81.2	$ 93.7
Other comprehensive income (loss):
Foreign currency translation adjustment	54.4	0.8	46.2	50.0
Total comprehensive income	$ 76.6	$ 28.7	$ 127.4	$ 143.7

Condensed Consolidated Statements Of Changes In Stockholders' Equity - USD ($) shares in Millions, $ in Millions	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income	Retained Earnings
Beginning Balance (in shares) at Jan. 30, 2016		103.3
Beginning Balance at Jan. 30, 2016	$ 2,081.0	$ 0.1	$ 0.0	$ (88.8)	$ 2,169.7
Net income	93.7				93.7
Foreign currency translation	50.0			50.0
Dividends	(78.0)				(78.0)
Stock-based compensation	12.4		12.4
Exercise of stock options and issuance of shares upon vesting of restricted stock grants (in shares)		0.7
Exercise of stock options and issuance of shares upon vesting of restricted stock grants	(8.1)		(7.2)		(0.9)
Ending Balance (in shares) at Jul. 30, 2016		104.0
Ending Balance at Jul. 30, 2016	2,151.0	$ 0.1	5.2	(38.8)	2,184.5
Beginning Balance (in shares) at Jan. 28, 2017		101.0
Beginning Balance at Jan. 28, 2017	2,254.1	$ 0.1	0.0	(47.3)	2,301.3
Net income	81.2				81.2
Foreign currency translation	46.2			46.2
Dividends	(77.7)				(77.7)
Stock-based compensation	11.2		11.2
Exercise of stock options and issuance of shares upon vesting of restricted stock grants (in shares)		0.3
Exercise of stock options and issuance of shares upon vesting of restricted stock grants	(3.3)		(3.3)
Ending Balance (in shares) at Jul. 29, 2017		101.3
Ending Balance at Jul. 29, 2017	$ 2,311.7	$ 0.1	$ 7.9	$ (1.1)	$ 2,304.8

Condensed Consolidated Statements Of Changes In Stockholders' Equity (Parenthetical) - USD ($) $ in Millions	6 Months Ended
	Jul. 29, 2017	Jul. 30, 2016
Tax benefit for exercise of employee stock options and issuance of shares upon vesting of restricted stock grants		$ 0.0
Dividends declared per common share	$ 0.76	$ 0.74

Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jul. 29, 2017	Jul. 30, 2016
Cash flows from operating activities:
Net income	$ 81.2	$ 93.7
Adjustments to reconcile net income (loss) to net cash flows provided by operating activities:
Depreciation and amortization (including amounts in cost of sales)	76.2	82.4
Stock-based compensation expense	11.2	12.4
Deferred Income Tax Expense (Benefit)	(14.2)	0.0
Excess Tax Benefit from Share-based Compensation, Operating Activities	0.0	(0.3)
Gain (Loss) on Disposition of Property Plant Equipment	2.8	3.9
Gain (Loss) on Disposition of Business	(7.3)	0.0
Other	21.9	4.9
Changes in operating assets and liabilities, net:
Receivables, net	31.2	51.4
Merchandise inventories	(16.5)	68.5
Prepaid expenses and other current assets	(10.9)	(13.2)
Prepaid income taxes and income taxes payable	(92.4)	(147.8)
Accounts payable and accrued liabilities	(400.8)	(591.4)
Changes in other long-term liabilities	5.9	(1.3)
Net cash flows used in operating activities	(311.7)	(436.2)
Excess Tax Benefit from Share-based Compensation, Financing Activities	0.0	(0.3)
Cash flows from investing activities:
Purchase of property and equipment	(47.2)	(66.1)
Acquisitions, net of cash acquired	(8.5)	(47.8)
Proceeds from Divestiture of Businesses	51.2	0.0
Other	0.4	4.9
Net cash flows used in investing activities	(4.1)	(109.0)
Cash flows from financing activities:
Repurchase of common shares	(22.0)	(10.0)
Dividends paid	(78.2)	(79.3)
Proceeds from Issuance of Long-term Debt	0.0	475.0
RepaymentofAcquisitionRelatedDebt	0.0	(0.2)
Borrowings from the revolver	333.0	100.0
Repayments of revolver borrowings	(333.0)	(100.0)
Payments of financing costs	0.0	(8.1)
Payments Related to Tax Withholding for Share-based Compensation	(3.3)	(7.8)
Net cash flows (used in) provided by financing activities	(103.5)	369.3
Exchange rate effect on cash and cash equivalents	12.0	15.0
(Decrease) increase in cash and cash equivalents	(407.3)	(160.9)
Cash and cash equivalents at beginning of period	669.4	450.4
Cash and cash equivalents at end of period	262.1	$ 289.5
Kongregate [Member]
Adjustments to reconcile net income (loss) to net cash flows provided by operating activities:
Gain (Loss) on Disposition of Business	$ (7.3)

Condensed Consolidated Statements Of Cash Flows Condensed Consolidated Statements of Cash Flows (Parenthetical) - USD ($)	6 Months Ended
	Jul. 29, 2017	Jul. 30, 2016
Statement of Cash Flows [Abstract]
Cash Acquired from Acquisition

Summary of Significant Accounting Policies	6 Months Ended
Summary of Significant Accounting Policies	Jul. 29, 2017
Accounting Policies [Abstract]
Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]	The Company GameStop Corp. (“GameStop,” “we,” “us,” “our,” or the “Company”) is a global family of specialty retail brands that makes the most popular technologies affordable and simple. Within our family of brands, we are the world’s largest omnichannel video game retailer, the largest AT&T® (“AT&T”) authorized retailer, the largest Apple© certified products reseller, a Cricket Wireless_TM reseller (“Cricket,” an AT&T brand) and the owner of www.thinkgeek.com, one of the world’s largest sellers of collectible pop-culture themed products. As of July 29, 2017, GameStop's retail network and family of brands include 7,480 company-operated stores in the United States, Australia, Canada and Europe. We have five reportable segments, which are comprised of four geographic Video Game Brands segments—United States, Canada, Australia and Europe—and a Technology Brands segment. Our Technology Brands segment includes our Spring Mobile and Simply Mac businesses. Spring Mobile owns and operates our AT&T branded wireless retail stores and Cricket branded pre-paid wireless stores. Basis of Presentation and Consolidation The unaudited condensed consolidated financial statements include our accounts and the accounts of our wholly-owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. The unaudited condensed consolidated financial statements included herein reflect all adjustments (consisting only of normal, recurring adjustments) which are, in our opinion, necessary for a fair presentation of the information as of and for the periods presented. These unaudited condensed consolidated interim financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and the instructions to Quarterly Report on Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all disclosures required under GAAP for complete consolidated financial statements. These unaudited condensed consolidated financial statements should be read in conjunction with our annual report on Form 10-K for the 52 weeks ended January 28, 2017 (the “2016 Annual Report on Form 10-K”). The preparation of financial statements in conformity with GAAP requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. In preparing these financial statements, we have made our best estimates and judgments of certain amounts included in the financial statements, giving due consideration to materiality. Changes in the estimates and assumptions used by us could have a significant impact on our financial results. Actual results could differ from those estimates. Due to the seasonal nature of our business, the results of operations for the 26 weeks ended July 29, 2017 are not indicative of the results to be expected for the 53 weeks ending February 3, 2018. Restricted Cash Restricted cash of $14.7 million, $10.3 million and $10.2 million as of July 29, 2017, July 30, 2016 and January 28, 2017, respectively, consists primarily of bank deposits serving as collateral for bank guarantees issued on behalf of our foreign subsidiaries and is included in other noncurrent assets in our unaudited condensed consolidated balance sheets. Dividend On August 21, 2017, our Board of Directors approved a quarterly cash dividend to our stockholders of $0.38 per share of Class A Common Stock payable on September 21, 2017 to stockholders of record at the close of business on September 8, 2017. Future dividends will be subject to approval by our Board of Directors. Adoption of New Accounting Pronouncements In January 2017, the Financial Accounting Standards Board ("FASB") issued Accounting Standard Update ("ASU") 2017-04, Intangibles—Goodwill and Other, Simplifying the Test for Goodwill Impairment, which simplifies how an entity is required to test goodwill for impairment by eliminating Step 2 from the goodwill impairment test. Step 2 measures a goodwill impairment loss by comparing the implied fair value of a reporting unit’s goodwill and the carrying amount. Instead, entities will record an impairment charge based on the excess of a reporting unit's carrying amount over its estimated fair value. We early adopted this updated standard which did not have an impact to our consolidated financial statements. In October 2016, the FASB issued ASU 2016-16, Accounting for Income Taxes: Intra-Entity Asset Transfers of Assets Other than Inventory, which eliminates the exception to defer the tax effects of intra-entity asset transfers (intercompany sales). Prior to this update, the tax effects of intra-entity asset transfers were deferred until the transferred asset was sold to a third party or otherwise recovered through use, which was an exception to the general requirement for comprehensive recognition of current and deferred income taxes. We early adopted this updated standard, effective January 29, 2017, and as a result we recognize tax expense or benefit from intercompany sales of assets other than inventory in the period in which the transaction occurs. In March 2016, the FASB issued ASU 2016-09, Improvements to Employee Share-Based Payment Accounting, which simplifies several aspects of accounting for employee share-based payment transactions. The amendments of the updated standard include, among other things, the requirement to recognize excess tax benefits and deficiencies through earnings and present the related cash flows in operating activities in the statement of cash flows, the election of a policy to either estimate forfeitures when determining periodic expense or recognize actual forfeitures when they occur, and an increase in the allowable income tax withholding from the minimum to maximum statutory rate and its classification in the statement of cash flows. As a result of the adoption of this updated standard, effective January 29, 2017, excess tax benefits and deficiencies are recognized in our results of operations and are presented in cash flows from operating activities in our statement of cash flows on a prospective basis. In addition, we elected to recognize actual forfeitures of stock-based awards as they occur. The adoption of this updated standard did not result in a material impact to our consolidated financial statements. Recently Issued Accounting Pronouncements In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows, Classification of Certain Cash Receipts and Cash Payments, which provides guidance on eight specific cash flow issues in regard to how cash receipts and cash payments are presented and classified in the statement of cash flows. The updated standard is effective for fiscal years beginning after December 15, 2017, including interim periods within those years, with early adoption permitted. The amendments in the ASU should be adopted on a retrospective basis unless it is impracticable to apply, in which case the amendments should be applied prospectively as of the earliest date practicable. We are currently evaluating the impact that this standard will have on our consolidated financial statements and disclosures. In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers, which sets forth a new five-step revenue recognition model that replaces the prior revenue recognition guidance in its entirety. The underlying principle of the new standard is that an entity will recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects what it expects in exchange for the goods or services. The updated standard also required additional disclosures on the nature, timing, and uncertainty of revenue and related cash flows. In August 2015, the FASB issued ASU 2015-14, Revenue from Contracts with Customers: Deferral of the Effective Date, which delays the effective date of ASU 2014-09 by one year to December 15, 2017 (with early adoption permitted). In 2016, the FASB issued several ASUs that further amended the new revenue standard in the areas of principal versus agent evaluation, licenses of intellectual property, identifying performance obligations, and other clarifications and technical corrections. Entities may use either a full retrospective or modified retrospective transition approach in applying these ASUs. We plan to adopt these new standards in the first quarter of fiscal 2018 and intend to utilize the modified retrospective transition approach. We do not expect the adoption of the new revenue standards to have a material impact to our consolidated balance sheets, statements of operations or statements of cash flows. Based on our ongoing evaluation, we expect that the new revenue standards will primarily impact the accounting of our PowerUp Rewards loyalty program and the recognition of breakage associated with our gift cards liability. For our loyalty program, we currently estimate the net cost of the rewards that will be issued and redeemed and record this cost (presented as cost of sales) and the associated balance sheet liability as points are accumulated by our loyalty program members. Under the new standards, the transaction price will be allocated between the product(s) sold and loyalty points earned, where the portion allocated to the loyalty points will be initially recorded as deferred revenue and subsequently recognized as revenue upon redemption or expiration of the loyalty points. Estimated breakage on unused gift cards and merchandise credit liabilities is currently recognized on a quarterly basis (recorded to cost of sales) for balances older than two years to the extent that we believe the likelihood of redemption is remote. Under the new standards, we will recognize breakage in revenue based on and in proportion to historical redemption patterns, regardless of the age of the unused gift cards and merchandise credit liabilities. Significant items yet to be finalized in our implementation efforts include quantification of the cumulative-effect adjustments to be recorded upon adoption, which we do not expect to be material; our ongoing evaluation of changes to business processes and related controls; and the impact of the new revenue-related disclosure requirements to our consolidated financial statements. In March 2016, the FASB issued ASU 2016-04, Recognition of Breakage for Certain Prepaid Stored-Value Products. The standard specifies how prepaid stored-value product liabilities should be derecognized, thereby eliminating the current and potential future diversity in practice. Consistent with ASU 2014-09 related to revenue recognition, the standard requires derecognition in proportion with the rights expected to be exercised by the holder. Entities may adopt this standard using either a modified retrospective transition approach with a cumulative-effect adjustment to retained earnings or a full retrospective transition approach. The ASU is effective for fiscal years, and interim periods within those years, beginning after December 15, 2017, with early adoption permitted. We continue to evaluate the impact that this standard will have on our consolidated financial statements and footnote disclosures. In February 2016, the FASB issued ASU 2016-02, Leases. The standard requires a lessee to recognize a liability related to lease payments and an offsetting right-of-use asset representing a right to use the underlying asset for the lease term on the balance sheet. Entities are required to use a modified retrospective transition approach for leases that exist or are entered into after the beginning of the earliest comparative period presented in the financial statements, with certain reliefs available. The ASU is effective for fiscal years, and interim periods within those years, beginning after December 15, 2018, with early adoption permitted. We are currently evaluating the overall impact to our consolidated financial statements, though we expect the adoption to result in a material increase in the assets and liabilities reflected in our consolidated balance sheets.

Divestitures (Notes)

6 Months Ended

Jul. 29, 2017

Discontinued Operations and Disposal Groups [Abstract]

Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]



2.	Divestitures

On July 21, 2017, we sold our ownership interest in Kongregate, a web and mobile gaming platform and publisher of mobile games, for proceeds of $54.7 million, net of transaction costs, of which $3.5 million is restricted cash held in escrow primarily for indemnification purposes. We recognized a gain on the sale of $7.3 million, net of tax, which is classified in selling, general and administrative expenses in our consolidated statements of operations for the 13 weeks and 26 weeks ended July 29, 2017. The disposed net assets of Kongregate primarily consisted of goodwill.

- Definition

The entire disclosure related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reference 10: http://www.xbrl.org/2003/role/presentationRef
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+ Details

Fair Value Measurements and Financial Instruments

6 Months Ended

Jul. 29, 2017

Fair Value Disclosures [Abstract]

Fair Value Measurements and Financial Instruments



3.	Fair Value Measurements and Financial Instruments

Fair value is defined as the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Applicable accounting standards require disclosures that categorize assets and liabilities measured at fair value into one of three different levels depending on the observability of the inputs employed in the measurement. Level 1 inputs are quoted prices in active markets for identical assets or liabilities. Level 2 inputs are observable inputs other than quoted prices included within Level 1 for the asset or liability, either directly or indirectly through market-corroborated inputs. Level 3 inputs are unobservable inputs for the asset or liability reflecting our assumptions about pricing by market participants.

Assets and Liabilities that are Measured at Fair Value on a Recurring Basis

Assets and liabilities that are measured at fair value on a recurring basis include our foreign currency contracts, life insurance policies we own that have a cash surrender value, contingent consideration payable associated with acquisitions, and certain nonqualified deferred compensation liabilities.

We value our foreign currency contracts, our life insurance policies with cash surrender values and certain nonqualified deferred compensation liabilities based on Level 2 inputs using quotations provided by major market news services, such as Bloomberg, and industry-standard models that consider various assumptions, including quoted forward prices, time value, volatility factors, and contractual prices for the underlying instruments, as well as other relevant economic measures, all of which are observable in active markets. When appropriate, valuations are adjusted to reflect credit considerations, generally based on available market evidence.

In connection with our acquisition of certain assets from Cellular World and Red Skye Wireless during the fiscal year ended January 28, 2017 ("fiscal 2016"), we recognized an acquisition-date liability of $43.2 million representing the total estimated fair value of the contingent consideration. The fair value was estimated based on Level 3 inputs which include future sales projections derived from our historical experience with comparable acquired stores and a discount rate commensurate with the risks and inherent uncertainty in the business. There was no material change in the fair value of the contingent consideration from the date of acquisition through July 29, 2017.

The following table provides the fair value of our assets and liabilities measured at fair value on a recurring basis and recorded in our unaudited condensed consolidated balance sheets (in millions):



	July 29, 2017				July 30, 2016				January 28, 2017
	Level 2		Level 3		Level 2		Level 3		Level 2		Level 3
Assets
Foreign currency contracts
Other current assets	$	4.5	$	—	$	15.7	$	—	$	13.3	$	—
Other noncurrent assets	0.3		—		—		—		0.1		—
Company-owned life insurance⁽¹⁾	12.8		—		10.4		—		12.4		—
Total assets	$	17.6	$	—	$	26.1	$	—	$	25.8	$	—
Liabilities
Foreign currency contracts
Accrued liabilities	$	6.5	$	—	$	6.1	$	—	$	4.3	$	—
Other long-term liabilities	0.4		—		—		—		0.1		—
Nonqualified deferred compensation⁽²⁾	1.1		—		1.0		—		1.0		—
Contingent consideration⁽³⁾	—		43.2		—		—		—		43.2
Total liabilities	$	8.0	$	43.2	$	7.1	$	—	$	5.4	$	43.2

__________________________________________________


(1)	Recognized in other non-current assets in our unaudited condensed consolidated balance sheets.


(2)	Recognized in accrued liabilities in our unaudited condensed consolidated balance sheets.


(3)	As of July 29, 2017, $43.2 million was included in accrued liabilities in our unaudited condensed consolidated balance sheets. As of January 28, 2017, the current portion of $20.0 million was included in accrued liabilities and the noncurrent portion of $23.2 million was included in other long-term liabilities in our unaudited condensed consolidated balance sheets.

We use forward exchange contracts, foreign currency options and cross-currency swaps (together, the “foreign currency contracts”) to manage currency risk primarily related to intercompany loans denominated in non-functional currencies and certain foreign currency assets and liabilities. The foreign currency contracts are not designated as hedges and, therefore, changes in the fair values of these derivatives are recognized in earnings, thereby offsetting the current earnings effect of the re-measurement of related intercompany loans and foreign currency assets and liabilities. The total gross notional value of derivatives related to our foreign currency contracts was $480.2 million, $792.2 million and $586.0 million as of July 29, 2017, July 30, 2016 and January 28, 2017, respectively.

Activity related to the trading of derivative instruments and the offsetting impact of related intercompany and foreign currency assets and liabilities recognized in selling, general and administrative expense is as follows (in millions):



	13 Weeks Ended						26 Weeks Ended
	July 29, 2017			July 30, 2016			July 29, 2017			July 30, 2016
(Losses) gains on the change in fair value of derivative instruments	$	(2.1	)	$	3.5		$	(10.1	)	$	5.5
Gains (losses) on the re-measurement of related intercompany loans and foreign currency assets and liabilities	4.2			(2.9		)	12.5			(3.4		)
Total	$	2.1		$	0.6		$	2.4		$	2.1

We do not use derivative financial instruments for trading or speculative purposes. We are exposed to counterparty credit risk on all of our derivative financial instruments and cash equivalent investments. We manage counterparty risk according to the guidelines and controls established under our comprehensive risk management and investment policies. We continuously monitor our counterparty credit risk and utilize a number of different counterparties to minimize our exposure to potential defaults. We do not require collateral under derivative or investment agreements.

Assets that are Measured at Fair Value on a Nonrecurring Basis

Assets that are measured at fair value on a nonrecurring basis relate primarily to property and equipment, goodwill and other intangible assets, which are remeasured when the estimated fair value is below its carrying value. For these assets, we do not periodically adjust carrying value to fair value; rather, when we determine that impairment has occurred, the carrying value of the asset is reduced to its fair value. We did not record any significant impairment charges related to assets measured at fair value on a nonrecurring basis during the 26 weeks ended July 29, 2017 or July 30, 2016.

Other Fair Value Disclosures

The carrying values of our cash equivalents, receivables, net, accounts payable and notes payable approximate the fair value due to their short-term maturities.

As of July 29, 2017, our unsecured 5.50% senior notes due in 2019 had a net carrying value of $347.2 million and a fair value of $360.7 million, and our unsecured 6.75% senior notes due in 2021 had a net carrying value of $469.2 million and a fair value of $494.7 million. The fair values of our senior notes were determined based on quoted market prices obtained through an external pricing source which derives its price valuations from daily marketplace transactions, with adjustments to reflect the spreads of benchmark bonds, credit risk and certain other variables. We have determined this to be a Level 2 measurement as all significant inputs into the quote provided by our pricing source are observable in active markets.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Debt

6 Months Ended

Jul. 29, 2017

Debt Disclosure [Abstract]

Debt



4.	Debt

Senior Notes

The carrying value of our long-term debt is comprised as follows (in millions):



	July 29, 2017			July 30, 2016			January 28, 2017
2019 Senior Notes principal amount	$	350.0		$	350.0		$	350.0
2021 Senior Notes principal amount	475.0			475.0			475.0
Less: Unamortized debt financing costs	(8.6		)	(11.5		)	(10.0		)
Long-term debt, net	$	816.4		$	813.5		$	815.0

2019 Senior Notes. In September 2014, we issued $350.0 million aggregate principal amount of unsecured 5.50% senior notes due October 1, 2019 (the "2019 Senior Notes"). The 2019 Senior Notes bear interest at the rate of 5.50% per annum with interest payable semi-annually in arrears on April 1 and October 1 of each year beginning on April 1, 2015. We incurred fees and expenses related to the 2019 Senior Notes offering of $6.3 million, which were capitalized during the third quarter of fiscal 2014 and are being amortized as interest expense over the term of the notes. The 2019 Senior Notes were sold in a private placement and are not registered under the U.S. Securities Act of 1933, as amended (the "Securities Act"). The 2019 Senior Notes were offered in the U.S. to “qualified institutional buyers” pursuant to the exemption from registration under Rule 144A of the Securities Act and in exempted offshore transactions pursuant to Regulation S under the Securities Act.

2021 Senior Notes. In March 2016, we issued $475.0 million aggregate principal amount of unsecured 6.75% senior notes due March 15, 2021 (the "2021 Senior Notes"). The 2021 Senior Notes bear interest at the rate of 6.75% per annum with interest payable semi-annually in arrears on March 15 and September 15 of each year beginning on September 15, 2016. The net proceeds from the offering were used for general corporate purposes, including acquisitions and dividends. We incurred fees and expenses related to the 2021 Senior Notes offering of $8.1 million, which were capitalized during the first quarter of fiscal 2016 and are being amortized as interest expense over the term of the notes. The 2021 Senior Notes were sold in a private placement and will not be registered under the Securities Act. The 2021 Senior Notes were offered in the U.S. to "qualified institutional buyers" pursuant to the exemption from registration under Rule 144A of the Securities Act and in exempted offshore transactions pursuant to Regulation S under the Securities Act.

The indentures governing the 2019 Senior Notes and the 2021 Senior Notes (together, the "Senior Notes") do not contain financial covenants but do contain covenants which place certain restrictions on us and our subsidiaries, including limitations on asset sales, additional liens, investments, stock repurchases, the incurrence of additional debt and the repurchase of debt that is junior to the Senior Notes. In addition, the indentures restrict payments of dividends to stockholders (other than dividends payable in shares of capital stock) if one of the following conditions exist: (i) an event of default has occurred, (ii) we could not incur additional debt under the general debt covenant of the indentures or (iii) the sum of the proposed dividend and all other dividends and other restricted payments made under the indentures from the date of the indentures governing the Senior Notes exceeds the sum of 50% of consolidated net income plus 100% of net proceeds from capital stock sales and other amounts set forth in and determined as provided in the indentures. These restrictions are subject to exceptions and qualifications, including that we can pay up to $175 million in dividends to stockholders in each fiscal year and we can pay dividends and make other restricted payments in an unlimited amount if our leverage ratio on a pro forma basis after giving effect to the dividend payment and other restricted payments would be less than or equal to 1.0:1.0.

The indentures contain customary events of default, including payment defaults, breaches of covenants, failure to pay certain judgments and certain events of bankruptcy, insolvency and reorganization. If an event of default occurs and is continuing, the principal amount of the Senior Notes, plus accrued and unpaid interest, if any, may be declared immediately due and payable. These amounts automatically become due and payable if an event of default relating to certain events of bankruptcy, insolvency or reorganization occurs.

Revolving Credit Facility

In January 2011, we entered into a $400 million credit agreement, which we amended and restated on March 25, 2014 and further amended on September 15, 2014 (the “Revolver”). The Revolver is a five-year, asset-based facility that is secured by substantially all of our assets and the assets of our domestic subsidiaries. Availability under the Revolver is subject to a monthly borrowing base calculation. The Revolver includes a $50 million letter of credit sublimit. The amendments extended the maturity date to March 25, 2019; increased the expansion feature under the Revolver from $150 million to $200 million, subject to certain conditions; and revised certain other terms, including a reduction of the fee we are required to pay on the unused portion of the total commitment amount.

Borrowing availability under the Revolver is limited to a borrowing base which allows us to borrow up to 90% of the appraisal value of the inventory, plus 90% of eligible credit card receivables, net of certain reserves. The borrowing base provides for borrowing of up to 92.5% of the appraisal value during the fiscal months of August through October. Letters of credit reduce the amount available to borrow under the Revolver by an amount equal to the face value of the letters of credit. Our ability to pay cash dividends, redeem options and repurchase shares is generally permitted, except under certain circumstances, including if either (1) excess availability under the Revolver is less than 30%, or is projected to be within 12 months after such payment or (2) excess availability under the Revolver is less than 15%, or is projected to be within 12 months after such payment, and the fixed charge coverage ratio, as calculated on a pro-forma basis for the prior 12 months, is 1.1:1.0 or less. In the event that excess availability under the Revolver is at any time less than the greater of (1) $30 million or (2) 10% of the lesser of the total commitment or the borrowing base, we will be subject to a fixed charge coverage ratio covenant of 1.0:1.0.

The Revolver places certain restrictions on us and our subsidiaries, including limitations on asset sales, additional liens, investments, loans, guarantees, acquisitions and the incurrence of additional indebtedness. Absent consent from our lenders, we may not incur more than $1 billion of senior secured debt and $750 million of additional unsecured indebtedness to be limited to $250 million in general unsecured obligations and $500 million in unsecured obligations to finance acquisitions valued at $500 million or more.

The per annum interest rate under the Revolver is variable and is calculated by applying a margin (1) for prime rate loans of 0.25% to 0.75% above the highest of (a) the prime rate of the administrative agent, (b) the federal funds effective rate plus 0.50% or (c) the London Interbank Offered (“LIBO”) rate for a 30-day interest period as determined on such day plus 1.00%, and (2) for LIBO rate loans of 1.25% to 1.75% above the LIBO rate. The applicable margin is determined quarterly as a function of our average daily excess availability under the facility. In addition, we are required to pay a commitment fee of 0.25% for any unused portion of the total commitment under the Revolver. As of July 29, 2017, the applicable margin was 0.25% for prime rate loans and 1.25% for LIBO rate loans.

The Revolver provides for customary events of default with corresponding grace periods, including failure to pay any principal or interest when due, failure to comply with covenants, any material representation or warranty made by us or the borrowers proving to be false in any material respect, certain bankruptcy, insolvency or receivership events affecting us or our subsidiaries, defaults relating to certain other indebtedness, imposition of certain judgments and mergers or the liquidation of the Company or certain of its subsidiaries. During the 26 weeks ended July 29, 2017, we cumulatively borrowed $333.0 million and repaid $333.0 million under the Revolver. As of July 29, 2017, total availability under the Revolver was $363.9 million, with no outstanding borrowings and outstanding standby letters of credit of $7.5 million. We are currently in compliance with the financial requirements of the Revolver.

Luxembourg Line of Credit

In September 2007, our Luxembourg subsidiary entered into a discretionary $20.0 million Uncommitted Line of Credit (the “Line of Credit”) with Bank of America. There is no term associated with the Line of Credit and Bank of America may withdraw the facility at any time without notice. The Line of Credit is available to our foreign subsidiaries for use primarily as a bank overdraft facility for short-term liquidity needs and for the issuance of bank guarantees and letters of credit to support operations. As of July 29, 2017, there were no cash overdrafts outstanding under the Line of Credit and bank guarantees outstanding totaled $9.9 million.

Commitments and Contingencies

6 Months Ended

Jul. 29, 2017

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies



5.	Commitments and Contingencies

Commitments

During the 26 weeks ended July 29, 2017, there were no material changes to our commitments as disclosed in our 2016 Annual Report on Form 10-K.

Contingencies

Acquisitions

In connection with our acquisition of certain assets from Cellular World and Red Skye Wireless, we recognized an acquisition-date liability of $43.2 million representing the fair value of future contingent consideration that we estimate will range from $40.0 million to $50.0 million. As of July 29, 2017, there has not been a material change to the liability since the acquisition date.

Legal Proceedings

In the ordinary course of business, we are, from time to time, subject to various legal proceedings, including matters involving wage and hour employee class actions, stockholder actions and consumer class actions. We may enter into discussions regarding settlement of these and other types of lawsuits, and may enter into settlement agreements, if we believe settlement is in the best interest of our stockholders. We do not believe that any such existing legal proceedings or settlements, individually or in the aggregate, will have a material effect on our financial condition, results of operations or liquidity.

Certain of our French subsidiaries have been under audit by the French Tax Administration (the "FTA") for fiscal years 2008 through 2015. We received tax reassessment notices on December 23, 2015 and April 4, 2016, pursuant to which the FTA asserted that the French subsidiaries were ineligible to claim certain tax deductions from November 4, 2008, through January 31, 2013, resulting in a potential additional tax charge of approximately €85.5 million. We may receive additional tax reassessments in material amounts for subsequent fiscal years. We filed a response to each reassessment and intend to vigorously contest the reassessments through administrative procedures. If we are unable to resolve this matter through administrative remedies at the FTA, we plan to pursue judicial remedies. We believe our tax positions will be sustained and have not taken a reserve for any potential adjustment based on the reassessment. If we were not to prevail, then the adjustment to our income tax provision could be material.

Computation of Net Income (Loss) Per Common Share

6 Months Ended

Jul. 29, 2017

Earnings Per Share [Abstract]

Computation of Net Income (Loss) Per Common Share



6.	Earnings Per Share

Basic net income per common share is computed by dividing the net income available to common stockholders by the weighted- average number of common shares outstanding during the period. Diluted net income per common share is computed by dividing the net income available to common stockholders by the weighted-average number of common shares outstanding and potentially dilutive securities outstanding during the period. Potentially dilutive securities include stock options and unvested restricted stock outstanding during the period, using the treasury stock method. Potentially dilutive securities are excluded from the computations of diluted earnings per share if their effect would be antidilutive.

A reconciliation of shares used in calculating basic and diluted net income per common share is as follows (in millions, except per share data):



	13 Weeks Ended				26 Weeks Ended
	July 29, 2017		July 30, 2016		July 29, 2017		July 30, 2016
Net income	$	22.2	$	27.9	$	81.2	$	93.7

Basic weighted average common shares outstanding	101.4		104.0		101.3		103.9
Dilutive effect of stock options and restricted stock awards	0.1		0.3		0.1		0.3
Diluted weighted average common shares outstanding	101.5		104.3		101.4		104.2

Basic earnings per share	$	0.22	$	0.27	$	0.80	$	0.90
Diluted earnings per share	$	0.22	$	0.27	$	0.80	$	0.90

Anti-dilutive stock options and restricted stock awards	2.1		1.4		2.1		1.3

Significant Products

6 Months Ended

Jul. 29, 2017

Text Block [Abstract]

Significant Products



7.	Significant Products

The tables below set forth net sales, percentages of total net sales, gross profit and gross profit percentages by significant product category for the periods indicated (dollars in millions).



	13 Weeks Ended								26 Weeks Ended
	July 29, 2017				July 30, 2016				July 29, 2017				July 30, 2016
	Net Sales		Percent of Total		Net Sales		Percent of Total		Net Sales		Percent of Total		Net Sales		Percent of Total
New video game hardware⁽¹⁾	$	248.4	14.7	%	$	216.4	13.3	%	$	638.3	17.1	%	$	529.3	14.7	%
New video game software	369.3		21.9		382.2		23.4		889.8		23.8		949.4		26.3
Pre-owned and value video game products	501.8		29.7		542.6		33.3		1,028.0		27.5		1,103.5		30.6
Video game accessories	144.1		8.5		119.5		7.3		320.2		8.6		282.2		7.8
Digital	46.5		2.8		36.3		2.2		90.6		2.4		79.1		2.2
Technology Brands⁽²⁾	188.3		11.2		175.9		10.8		389.7		10.4		341.7		9.5
Collectibles	122.5		7.3		90.0		5.5		237.0		6.4		172.3		4.8
Other⁽³⁾	66.7		3.9		68.9		4.2		139.9		3.8		145.8		4.1
Total	$	1,687.6	100.0	%	$	1,631.8	100.0	%	$	3,733.5	100.0	%	$	3,603.3	100.0	%



	13 Weeks Ended								26 Weeks Ended
	July 29, 2017				July 30, 2016				July 29, 2017				July 30, 2016
	Gross Profit		Gross Profit Percent		Gross Profit		Gross Profit Percent		Gross Profit		Gross Profit Percent		Gross Profit		Gross Profit Percent
New video game hardware⁽¹⁾	$	26.7	10.7	%	$	30.0	13.9	%	$	64.8	10.2	%	$	58.3	11.0	%
New video game software	81.8		22.2		98.1		25.7		195.5		22.0		226.0		23.8
Pre-owned and value video game products	225.6		45.0		244.0		45.0		479.3		46.6		507.2		46.0
Video game accessories	47.7		33.1		45.7		38.2		103.6		32.4		102.8		36.4
Digital	37.9		81.5		32.7		90.1		74.0		81.7		69.7		88.1
Technology Brands⁽²⁾	138.9		73.8		110.7		62.9		283.5		72.7		220.4		64.5
Collectibles	43.2		35.3		34.7		38.6		78.4		33.1		63.3		36.7
Other⁽³⁾	21.9		32.8		21.8		31.6		47.1		33.7		45.5		31.2
Total	$	623.7	37.0	%	$	617.7	37.9	%	$	1,326.2	35.5	%	$	1,293.2	35.9	%

_____________________________________________


(1)	Includes sales of hardware bundles, in which physical hardware and digital or physical software are sold together as a single SKU.


(2)	Includes mobile and consumer electronics sold through our Technology Brands segment, which includes the operations of our Spring Mobile managed AT&T and Cricket branded stores and our Simply Mac business.


(3)	Includes sales of PC entertainment software, interactive game figures, strategy guides, mobile and consumer electronics sold through our Video Game Brands segments, and revenues from PowerUp Pro loyalty members receiving Game Informer magazine in print form.

Segment Information

6 Months Ended

Jul. 29, 2017

Segment Reporting [Abstract]

Segment Information



8.	Segment Information

We report our business in four geographic Video Game Brands segments: United States, Canada, Australia and Europe; and a Technology Brands segment, which includes the operations of our Spring Mobile managed AT&T and Cricket branded stores and our Simply Mac business. We identify segments based on a combination of geographic areas and management responsibility. Each of the segments includes significant retail operations with all Video Game Brands stores engaged in the sale of new and pre-owned video game hardware, software, accessories and collectibles, and Technology Brands stores engaged in the sale of wireless products and services and other consumer electronics. Our Video Game Brands segments also include stand-alone collectibles stores. Segment results for the United States include retail operations in 50 states, the District of Columbia, and Guam; our electronic commerce websites www.gamestop.com and www.thinkgeek.com; Game Informer magazine; and Kongregate, a web and mobile gaming platform which we sold in July 2017 (see Note 2). Segment results for Canada include retail and e-commerce operations in Canada and segment results for Australia include retail and e-commerce operations in Australia and New Zealand. Segment results for Europe include retail and e-commerce operations in 10 European countries. The Technology Brands segment includes retail operations in the United States. We measure segment profit using operating earnings, which is defined as income from continuing operations before intercompany royalty fees, net interest expense and income taxes. Transactions between reportable segments consist primarily of royalties, management fees, intersegment loans and related interest. There were no material intersegment sales during the 13 weeks and 26 weeks ended July 29, 2017 and July 30, 2016, respectively.

The reconciliation of segment operating earnings to earnings (loss) before income taxes for 13 and 26 weeks ended July 29, 2017 and July 30, 2016 is as follows (in millions):



13 weeks ended July 29, 2017	United States		Canada			Australia		Europe			Technology Brands		Consolidated
Net sales	$	1,017.8	$	69.9		$	145.3	$	266.3		$	188.3	$	1,687.6
Operating earnings (loss)	37.2		(0.3		)	3.1		(11.4		)	15.0		43.6
Interest income													—
Interest expense													(14.4		)
Earnings before income taxes													$	29.2



13 weeks ended July 30, 2016	United States		Canada		Australia		Europe			Technology Brands		Consolidated
Net sales	$	1,022.7	$	66.6	$	127.4	$	239.2		$	175.9	$	1,631.8
Operating earnings (loss)	51.2		1.2		3.0		(11.0		)	13.9		58.3
Interest income												0.3
Interest expense												(13.9		)
Earnings before income taxes												$	44.7



26 weeks ended July 29, 2017	United States		Canada		Australia		Europe			Technology Brands		Consolidated
Net sales	$	2,357.3	$	159.8	$	282.0	$	544.7		$	389.7	$	3,733.5
Operating earnings (loss)	123.1		1.9		4.9		(11.3		)	26.1		144.7
Interest income												0.2
Interest expense												(28.5		)
Earnings before income taxes												$	116.4



26 weeks ended July 30, 2016	United States		Canada		Australia		Europe			Technology Brands		Consolidated
Net sales	$	2,391.3	$	144.3	$	237.3	$	488.7		$	341.7	$	3,603.3
Operating earnings (loss)	145.6		5.0		3.5		(14.5		)	32.7		172.3
Interest income												0.5
Interest expense												(24.9		)
Earnings before income taxes												$	147.9

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

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+ Details

Subsequent Events

6 Months Ended

Jul. 29, 2017

Subsequent Events [Abstract]

Subsequent Events



10.	Subsequent Events

None

Summary of Significant Accounting Policies (Policies)	6 Months Ended
Summary of Significant Accounting Policies (Policies)	Jul. 29, 2017
Accounting Policies [Abstract]
Basis of Accounting, Policy [Policy Text Block]	The unaudited condensed consolidated financial statements include our accounts and the accounts of our wholly-owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. The unaudited condensed consolidated financial statements included herein reflect all adjustments (consisting only of normal, recurring adjustments) which are, in our opinion, necessary for a fair presentation of the information as of and for the periods presented. These unaudited condensed consolidated interim financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and the instructions to Quarterly Report on Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all disclosures required under GAAP for complete consolidated financial statements. These unaudited condensed consolidated financial statements should be read in conjunction with our annual report on Form 10-K for the 52 weeks ended January 28, 2017 (the “2016 Annual Report on Form 10-K”). The preparation of financial statements in conformity with GAAP requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. In preparing these financial statements, we have made our best estimates and judgments of certain amounts included in the financial statements, giving due consideration to materiality. Changes in the estimates and assumptions used by us could have a significant impact on our financial results. Actual results could differ from those estimates. Due to the seasonal nature of our business, the results of operations for the 26 weeks ended July 29, 2017 are not indicative of the results to be expected for the 53 weeks ending February 3, 2018.
New Accounting Pronouncements	In January 2017, the Financial Accounting Standards Board ("FASB") issued Accounting Standard Update ("ASU") 2017-04, Intangibles—Goodwill and Other, Simplifying the Test for Goodwill Impairment, which simplifies how an entity is required to test goodwill for impairment by eliminating Step 2 from the goodwill impairment test. Step 2 measures a goodwill impairment loss by comparing the implied fair value of a reporting unit’s goodwill and the carrying amount. Instead, entities will record an impairment charge based on the excess of a reporting unit's carrying amount over its estimated fair value. We early adopted this updated standard which did not have an impact to our consolidated financial statements. In October 2016, the FASB issued ASU 2016-16, Accounting for Income Taxes: Intra-Entity Asset Transfers of Assets Other than Inventory, which eliminates the exception to defer the tax effects of intra-entity asset transfers (intercompany sales). Prior to this update, the tax effects of intra-entity asset transfers were deferred until the transferred asset was sold to a third party or otherwise recovered through use, which was an exception to the general requirement for comprehensive recognition of current and deferred income taxes. We early adopted this updated standard, effective January 29, 2017, and as a result we recognize tax expense or benefit from intercompany sales of assets other than inventory in the period in which the transaction occurs. In March 2016, the FASB issued ASU 2016-09, Improvements to Employee Share-Based Payment Accounting, which simplifies several aspects of accounting for employee share-based payment transactions. The amendments of the updated standard include, among other things, the requirement to recognize excess tax benefits and deficiencies through earnings and present the related cash flows in operating activities in the statement of cash flows, the election of a policy to either estimate forfeitures when determining periodic expense or recognize actual forfeitures when they occur, and an increase in the allowable income tax withholding from the minimum to maximum statutory rate and its classification in the statement of cash flows. As a result of the adoption of this updated standard, effective January 29, 2017, excess tax benefits and deficiencies are recognized in our results of operations and are presented in cash flows from operating activities in our statement of cash flows on a prospective basis. In addition, we elected to recognize actual forfeitures of stock-based awards as they occur. The adoption of this updated standard did not result in a material impact to our consolidated financial statements.
Description of New Accounting Pronouncements Not yet Adopted [Text Block]	Recently Issued Accounting Pronouncements In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows, Classification of Certain Cash Receipts and Cash Payments, which provides guidance on eight specific cash flow issues in regard to how cash receipts and cash payments are presented and classified in the statement of cash flows. The updated standard is effective for fiscal years beginning after December 15, 2017, including interim periods within those years, with early adoption permitted. The amendments in the ASU should be adopted on a retrospective basis unless it is impracticable to apply, in which case the amendments should be applied prospectively as of the earliest date practicable. We are currently evaluating the impact that this standard will have on our consolidated financial statements and disclosures. In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers, which sets forth a new five-step revenue recognition model that replaces the prior revenue recognition guidance in its entirety. The underlying principle of the new standard is that an entity will recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects what it expects in exchange for the goods or services. The updated standard also required additional disclosures on the nature, timing, and uncertainty of revenue and related cash flows. In August 2015, the FASB issued ASU 2015-14, Revenue from Contracts with Customers: Deferral of the Effective Date, which delays the effective date of ASU 2014-09 by one year to December 15, 2017 (with early adoption permitted). In 2016, the FASB issued several ASUs that further amended the new revenue standard in the areas of principal versus agent evaluation, licenses of intellectual property, identifying performance obligations, and other clarifications and technical corrections. Entities may use either a full retrospective or modified retrospective transition approach in applying these ASUs. We plan to adopt these new standards in the first quarter of fiscal 2018 and intend to utilize the modified retrospective transition approach. We do not expect the adoption of the new revenue standards to have a material impact to our consolidated balance sheets, statements of operations or statements of cash flows. Based on our ongoing evaluation, we expect that the new revenue standards will primarily impact the accounting of our PowerUp Rewards loyalty program and the recognition of breakage associated with our gift cards liability. For our loyalty program, we currently estimate the net cost of the rewards that will be issued and redeemed and record this cost (presented as cost of sales) and the associated balance sheet liability as points are accumulated by our loyalty program members. Under the new standards, the transaction price will be allocated between the product(s) sold and loyalty points earned, where the portion allocated to the loyalty points will be initially recorded as deferred revenue and subsequently recognized as revenue upon redemption or expiration of the loyalty points. Estimated breakage on unused gift cards and merchandise credit liabilities is currently recognized on a quarterly basis (recorded to cost of sales) for balances older than two years to the extent that we believe the likelihood of redemption is remote. Under the new standards, we will recognize breakage in revenue based on and in proportion to historical redemption patterns, regardless of the age of the unused gift cards and merchandise credit liabilities. Significant items yet to be finalized in our implementation efforts include quantification of the cumulative-effect adjustments to be recorded upon adoption, which we do not expect to be material; our ongoing evaluation of changes to business processes and related controls; and the impact of the new revenue-related disclosure requirements to our consolidated financial statements. In March 2016, the FASB issued ASU 2016-04, Recognition of Breakage for Certain Prepaid Stored-Value Products. The standard specifies how prepaid stored-value product liabilities should be derecognized, thereby eliminating the current and potential future diversity in practice. Consistent with ASU 2014-09 related to revenue recognition, the standard requires derecognition in proportion with the rights expected to be exercised by the holder. Entities may adopt this standard using either a modified retrospective transition approach with a cumulative-effect adjustment to retained earnings or a full retrospective transition approach. The ASU is effective for fiscal years, and interim periods within those years, beginning after December 15, 2017, with early adoption permitted. We continue to evaluate the impact that this standard will have on our consolidated financial statements and footnote disclosures. In February 2016, the FASB issued ASU 2016-02, Leases. The standard requires a lessee to recognize a liability related to lease payments and an offsetting right-of-use asset representing a right to use the underlying asset for the lease term on the balance sheet. Entities are required to use a modified retrospective transition approach for leases that exist or are entered into after the beginning of the earliest comparative period presented in the financial statements, with certain reliefs available. The ASU is effective for fiscal years, and interim periods within those years, beginning after December 15, 2018, with early adoption permitted. We are currently evaluating the overall impact to our consolidated financial statements, though we expect the adoption to result in a material increase in the assets and liabilities reflected in our consolidated balance sheets.

- Definition

The entire disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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+ Details

Fair Value Measurements and Financial Instruments (Tables)

6 Months Ended

Jul. 29, 2017

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Fair Value of Assets and Liabilities Measured at Fair Value on Recurring Basis



	July 29, 2017				July 30, 2016				January 28, 2017
	Level 2		Level 3		Level 2		Level 3		Level 2		Level 3
Assets
Foreign currency contracts
Other current assets	$	4.5	$	—	$	15.7	$	—	$	13.3	$	—
Other noncurrent assets	0.3		—		—		—		0.1		—
Company-owned life insurance⁽¹⁾	12.8		—		10.4		—		12.4		—
Total assets	$	17.6	$	—	$	26.1	$	—	$	25.8	$	—
Liabilities
Foreign currency contracts
Accrued liabilities	$	6.5	$	—	$	6.1	$	—	$	4.3	$	—
Other long-term liabilities	0.4		—		—		—		0.1		—
Nonqualified deferred compensation⁽²⁾	1.1		—		1.0		—		1.0		—
Contingent consideration⁽³⁾	—		43.2		—		—		—		43.2
Total liabilities	$	8.0	$	43.2	$	7.1	$	—	$	5.4	$	43.2

Gains and Losses on Derivative Instruments and Foreign Currency Transaction



	13 Weeks Ended						26 Weeks Ended
	July 29, 2017			July 30, 2016			July 29, 2017			July 30, 2016
(Losses) gains on the change in fair value of derivative instruments	$	(2.1	)	$	3.5		$	(10.1	)	$	5.5
Gains (losses) on the re-measurement of related intercompany loans and foreign currency assets and liabilities	4.2			(2.9		)	12.5			(3.4		)
Total	$	2.1		$	0.6		$	2.4		$	2.1

Debt Long-term Debt, excluding current maturities (Tables)

6 Months Ended

Jul. 29, 2017

Debt Instrument [Line Items]

Schedule of Long-term Debt Instruments [Table Text Block]



	July 29, 2017			July 30, 2016			January 28, 2017
2019 Senior Notes principal amount	$	350.0		$	350.0		$	350.0
2021 Senior Notes principal amount	475.0			475.0			475.0
Less: Unamortized debt financing costs	(8.6		)	(11.5		)	(10.0		)
Long-term debt, net	$	816.4		$	813.5		$	815.0

- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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-Paragraph 1
-Subparagraph (SX 210.5-02.22)
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+ Details

Computation of Net Income (Loss) Per Common Share (Tables)

6 Months Ended

Jul. 29, 2017

Earnings Per Share [Abstract]

Reconciliation of Shares Used in Calculating Basic and Diluted Net Income (Loss) Per Common Share

A reconciliation of shares used in calculating basic and diluted net income per common share is as follows (in millions, except per share data):



	13 Weeks Ended				26 Weeks Ended
	July 29, 2017		July 30, 2016		July 29, 2017		July 30, 2016
Net income	$	22.2	$	27.9	$	81.2	$	93.7

Basic weighted average common shares outstanding	101.4		104.0		101.3		103.9
Dilutive effect of stock options and restricted stock awards	0.1		0.3		0.1		0.3
Diluted weighted average common shares outstanding	101.5		104.3		101.4		104.2

Basic earnings per share	$	0.22	$	0.27	$	0.80	$	0.90
Diluted earnings per share	$	0.22	$	0.27	$	0.80	$	0.90

Anti-dilutive stock options and restricted stock awards	2.1		1.4		2.1		1.3

Significant Products (Tables)

6 Months Ended

Jul. 29, 2017

Text Block [Abstract]

Sales and Percentage of Total Net Sales by Significant Product Category

The tables below set forth net sales, percentages of total net sales, gross profit and gross profit percentages by significant product category for the periods indicated (dollars in millions).



	13 Weeks Ended								26 Weeks Ended
	July 29, 2017				July 30, 2016				July 29, 2017				July 30, 2016
	Net Sales		Percent of Total		Net Sales		Percent of Total		Net Sales		Percent of Total		Net Sales		Percent of Total
New video game hardware⁽¹⁾	$	248.4	14.7	%	$	216.4	13.3	%	$	638.3	17.1	%	$	529.3	14.7	%
New video game software	369.3		21.9		382.2		23.4		889.8		23.8		949.4		26.3
Pre-owned and value video game products	501.8		29.7		542.6		33.3		1,028.0		27.5		1,103.5		30.6
Video game accessories	144.1		8.5		119.5		7.3		320.2		8.6		282.2		7.8
Digital	46.5		2.8		36.3		2.2		90.6		2.4		79.1		2.2
Technology Brands⁽²⁾	188.3		11.2		175.9		10.8		389.7		10.4		341.7		9.5
Collectibles	122.5		7.3		90.0		5.5		237.0		6.4		172.3		4.8
Other⁽³⁾	66.7		3.9		68.9		4.2		139.9		3.8		145.8		4.1
Total	$	1,687.6	100.0	%	$	1,631.8	100.0	%	$	3,733.5	100.0	%	$	3,603.3	100.0	%



	13 Weeks Ended								26 Weeks Ended
	July 29, 2017				July 30, 2016				July 29, 2017				July 30, 2016
	Gross Profit		Gross Profit Percent		Gross Profit		Gross Profit Percent		Gross Profit		Gross Profit Percent		Gross Profit		Gross Profit Percent
New video game hardware⁽¹⁾	$	26.7	10.7	%	$	30.0	13.9	%	$	64.8	10.2	%	$	58.3	11.0	%
New video game software	81.8		22.2		98.1		25.7		195.5		22.0		226.0		23.8
Pre-owned and value video game products	225.6		45.0		244.0		45.0		479.3		46.6		507.2		46.0
Video game accessories	47.7		33.1		45.7		38.2		103.6		32.4		102.8		36.4
Digital	37.9		81.5		32.7		90.1		74.0		81.7		69.7		88.1
Technology Brands⁽²⁾	138.9		73.8		110.7		62.9		283.5		72.7		220.4		64.5
Collectibles	43.2		35.3		34.7		38.6		78.4		33.1		63.3		36.7
Other⁽³⁾	21.9		32.8		21.8		31.6		47.1		33.7		45.5		31.2
Total	$	623.7	37.0	%	$	617.7	37.9	%	$	1,326.2	35.5	%	$	1,293.2	35.9	%

Gross Profit and Gross Profit Percentages by Significant Product Category



	13 Weeks Ended								26 Weeks Ended
	July 29, 2017				July 30, 2016				July 29, 2017				July 30, 2016
	Gross Profit		Gross Profit Percent		Gross Profit		Gross Profit Percent		Gross Profit		Gross Profit Percent		Gross Profit		Gross Profit Percent
New video game hardware⁽¹⁾	$	26.7	10.7	%	$	30.0	13.9	%	$	64.8	10.2	%	$	58.3	11.0	%
New video game software	81.8		22.2		98.1		25.7		195.5		22.0		226.0		23.8
Pre-owned and value video game products	225.6		45.0		244.0		45.0		479.3		46.6		507.2		46.0
Video game accessories	47.7		33.1		45.7		38.2		103.6		32.4		102.8		36.4
Digital	37.9		81.5		32.7		90.1		74.0		81.7		69.7		88.1
Technology Brands⁽²⁾	138.9		73.8		110.7		62.9		283.5		72.7		220.4		64.5
Collectibles	43.2		35.3		34.7		38.6		78.4		33.1		63.3		36.7
Other⁽³⁾	21.9		32.8		21.8		31.6		47.1		33.7		45.5		31.2
Total	$	623.7	37.0	%	$	617.7	37.9	%	$	1,326.2	35.5	%	$	1,293.2	35.9	%

Segment Information (Tables)

6 Months Ended

Jul. 29, 2017

Segment Reporting [Abstract]

Sales by Segment

The reconciliation of segment operating earnings to earnings (loss) before income taxes for 13 and 26 weeks ended July 29, 2017 and July 30, 2016 is as follows (in millions):



13 weeks ended July 29, 2017	United States		Canada			Australia		Europe			Technology Brands		Consolidated
Net sales	$	1,017.8	$	69.9		$	145.3	$	266.3		$	188.3	$	1,687.6
Operating earnings (loss)	37.2		(0.3		)	3.1		(11.4		)	15.0		43.6
Interest income													—
Interest expense													(14.4		)
Earnings before income taxes													$	29.2



13 weeks ended July 30, 2016	United States		Canada		Australia		Europe			Technology Brands		Consolidated
Net sales	$	1,022.7	$	66.6	$	127.4	$	239.2		$	175.9	$	1,631.8
Operating earnings (loss)	51.2		1.2		3.0		(11.0		)	13.9		58.3
Interest income												0.3
Interest expense												(13.9		)
Earnings before income taxes												$	44.7



26 weeks ended July 29, 2017	United States		Canada		Australia		Europe			Technology Brands		Consolidated
Net sales	$	2,357.3	$	159.8	$	282.0	$	544.7		$	389.7	$	3,733.5
Operating earnings (loss)	123.1		1.9		4.9		(11.3		)	26.1		144.7
Interest income												0.2
Interest expense												(28.5		)
Earnings before income taxes												$	116.4



26 weeks ended July 30, 2016	United States		Canada		Australia		Europe			Technology Brands		Consolidated
Net sales	$	2,391.3	$	144.3	$	237.3	$	488.7		$	341.7	$	3,603.3
Operating earnings (loss)	145.6		5.0		3.5		(14.5		)	32.7		172.3
Interest income												0.5
Interest expense												(24.9		)
Earnings before income taxes												$	147.9

Summary of Significant Accounting Policies - Narrative (Detail) $ / shares in Units, $ in Millions		3 Months Ended		6 Months Ended
	Aug. 21, 2017 $ / shares	Jul. 29, 2017 USD ($) $ / shares	Jul. 30, 2016 USD ($) $ / shares	Jul. 29, 2017 USD ($) $ / shares	Jul. 30, 2016 USD ($) $ / shares	Jan. 28, 2017 USD ($)
Significant Accounting Policies [Line Items]
Number of Stores		7,480		7,480
Number of Reportable Segments				5
Restricted cash \| $		$ 14.7	$ 10.3	$ 14.7	$ 10.3	$ 10.2
Common Stock, Dividends, Per Share, Declared		$ 0.38	$ 0.37	$ 0.76	$ 0.74
Video Game Brands
Significant Accounting Policies [Line Items]
Number of Reportable Segments				4
Subsequent Event [Member]
Significant Accounting Policies [Line Items]
Dividends Payable, Date Declared	Aug. 21, 2017
Common Stock, Dividends, Per Share, Declared	$ 0.38
Dividends Payable, Date to be Paid	Sep. 21, 2017
Dividends Payable, Date of Record	Sep. 08, 2017

Divestitures (Details) - USD ($) $ in Millions		6 Months Ended
Divestitures (Details) - USD ($) $ in Millions	Jul. 21, 2017	Jul. 29, 2017	Jul. 30, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from Divestiture of Businesses		$ 51.2	$ 0.0
Gain (Loss) on Disposition of Business		7.3	$ 0.0
Kongregate [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (Loss) on Disposition of Business		$ 7.3
UnrestrictedAndRestricted [Member] \| Kongregate [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from Divestiture of Businesses	$ 54.7
Restricted Cash [Member] \| Kongregate [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from Divestiture of Businesses	$ 3.5

Fair Value Measurements and Financial Instruments - Fair Value of Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($)
$ in Millions

Jul. 29, 2017

Jan. 28, 2017

Aug. 02, 2016

Jul. 30, 2016

Liabilities

Business Combination, Contingent Consideration, Liability

$ 43.2

Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring

Assets

Company-owned life insurance

^[1]

$ 12.8

$ 12.4

$ 10.4

Total assets

17.6

25.8

26.1

Liabilities

Nonqualified deferred compensation

^[2]

1.1

1.0

Total liabilities

8.0

5.4

7.1

Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring | Other current assets

Assets

Foreign Currency Contracts

4.5

13.3

15.7

Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring | Other noncurrent assets

Assets

Foreign Currency Contracts

0.3

0.1

Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring | Accrued liabilities

Liabilities

Foreign Currency Contracts

6.5

4.3

$ 6.1

Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring | Other long-term liabilities

Liabilities

Foreign Currency Contracts

0.4

0.1

Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring

Liabilities

Business Combination, Contingent Consideration, Liability

43.2

$ 43.2

Total liabilities

43.2

Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring | Accrued liabilities

Liabilities

Business Combination, Contingent Consideration, Liability

$ 43.2

20.0

Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring | Other long-term liabilities

Liabilities

Business Combination, Contingent Consideration, Liability

$ 23.2

[1]

(1) Recognized in other non-current assets in our unaudited condensed consolidated balance sheets.

[2]

(2)Recognized in accrued liabilities in our unaudited condensed consolidated balance sheets.(3)As of July 29, 2017, $43.2 million was included in accrued liabilities in our unaudited condensed consolidated balance sheets. As of January 28, 2017, the current portion of $20.0 million was included in accrued liabilities and the noncurrent portion of $23.2 million was included in other long-term liabilities in our unaudited condensed consolidated balance sheets.

Fair Value Measurements and Financial Instruments - Gains and Losses on Derivative Instruments and Foreign Currency Transaction (Detail) - Selling, General and Administrative Expense - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 29, 2017	Jul. 30, 2016	Jul. 29, 2017	Jul. 30, 2016
Fair Value Derivative Contract Assets and Liabilities Measured On Recurring Basis Gain Loss Included In Earnings [Line Items]
Gains (losses) on the changes in fair value of derivative instruments	$ (2.1)	$ 3.5	$ (10.1)	$ 5.5
Gains (losses) on the re-measurement of related intercompany loans and foreign currency assets and liabilities	4.2	(2.9)	12.5	(3.4)
Total	$ 2.1	$ 0.6	$ 2.4	$ 2.1

Fair Value Measurements and Financial Instruments - Narrative (Detail) - USD ($) $ in Millions	Jul. 29, 2017	Jan. 28, 2017	Aug. 02, 2016	Jul. 30, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Combination, Contingent Consideration, Liability			$ 43.2
Notional value of foreign currency derivatives gross	$ 480.2	$ 586.0		$ 792.2
Unsecured Debt [Member] \| Senior Notes 5.5% due 2019 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term Debt	347.2
Long-term Debt, Fair Value	360.7
Unsecured Debt [Member] \| Senior Notes 6.75% due 2021 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term Debt	469.2
Long-term Debt, Fair Value	494.7
Fair Value, Inputs, Level 3 [Member] \| Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Combination, Contingent Consideration, Liability	43.2	43.2	$ 43.2
Accrued Liabilities [Member] \| Fair Value, Inputs, Level 3 [Member] \| Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Combination, Contingent Consideration, Liability	$ 43.2	20.0
Other Noncurrent Liabilities [Member] \| Fair Value, Inputs, Level 3 [Member] \| Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Combination, Contingent Consideration, Liability		$ 23.2

Fair Value Measurements and Financial Instruments Other Fair Value Disclosures (Details) - Unsecured Debt [Member] $ in Millions	Jul. 29, 2017 USD ($)
Senior Notes 5.5% due 2019 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term Debt, Fair Value	$ 360.7
Senior Notes 6.75% due 2021 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term Debt, Fair Value	$ 494.7

Debt - Narrative (Detail)				6 Months Ended
Debt - Narrative (Detail)	Sep. 25, 2014 USD ($)	Mar. 25, 2014 USD ($)	Sep. 30, 2007 USD ($)	Jul. 29, 2017 USD ($)	Jul. 30, 2016 USD ($)	Jan. 28, 2017 USD ($)	Mar. 09, 2016 USD ($)	Sep. 24, 2014 USD ($)	Jan. 04, 2011 USD ($)
Debt Disclosure [Line Items]
Long-term debt				$ 816,400,000	$ 813,500,000	$ 815,000,000
Line of Credit Facility, Expiration Date				Mar. 25, 2019
Borrowings from the revolver				$ 333,000,000	100,000,000
Repayments of revolver borrowings				333,000,000	100,000,000
Outstanding balance under revolving credit Facility				0
Total availability under the revolver				363,900,000
Letters of credit outstanding				7,500,000
Line of Credit Facility, Average Outstanding Amount				$ 56,500,000
Line of Credit Facility, Interest Rate During Period				2.40%
Unsecured Debt [Member]
Debt Disclosure [Line Items]
Debt Instrument, Cash Dividend Restriction, Maximum Ratio of Indenture Life-to-date Dividend Paid to Net Income	50.00%
Debt Instrument, Cash Dividend Restriction, Maximum Ratio of Indenture Life-to-date Dividend Paid to Stock Sale Proceeds	100.00%
Debt Instrument, Cash Dividend Restriction, Fiscal Year Maximum	$ 175,000,000
Pro Forma, Fixed Charge Coverage Ratio	1.0
LUXEMBOURG
Debt Disclosure [Line Items]
Line of credit, current borrowing capacity			$ 20,000,000
Credit agreement, date			2007-09
Cash overdrafts outstanding				$ 0
Bank guarantees outstanding				$ 9,900,000
Five Year Revolving Credit Facility
Debt Disclosure [Line Items]
Line of credit, current borrowing capacity									$ 400,000,000
Line of credit facility additional borrowing capacity		$ 150,000,000
Line of credit facility maturity date				2019-03
Line of credit facility, asset restrictions				Availability to borrow under the Revolver is limited to a borrowing base which allows us to borrow up to 90% of the appraisal value of the inventory, in each case plus 90% of eligible credit card receivables, net of certain reserves. Letters of credit reduce the amount available to borrow under the Revolver by an amount equal to the face value of the letters of credit.
Line of credit facility, dividend restrictions				Our ability to pay cash dividends, redeem options and repurchase shares is generally permitted, except under certain circumstances, including if either 1) excess availability under the Revolver is less than 30%, or is projected to be within 12 months after such payment or 2) if excess availability under the Revolver is less than 15%, or is projected to be within 12 months after such payment, and the fixed charge coverage ratio, as calculated on a pro-forma basis for the prior 12 months is 1.1:1.0 or less.
Line of credit facility, covenant terms				In the event that excess availability under the Revolver is at any time less than the greater of (1) $30 million or (2) 10% of the lesser of the total commitment or the borrowing base, we will be subject to a fixed charge coverage ratio covenant of 1.0:1.0.
Amended Five Year Revolving Credit Facility
Debt Disclosure [Line Items]
Line of credit, term		5 years
Line of credit facility additional borrowing capacity		$ 200,000,000
Line of credit facility, maximum borrowing capacity percentage		90.00%
Line of Credit Facility, Maximum Borrowing Capacity, Credit Card Receivables, Percentage		90.00%
Line of Credit Facility, Remaining Borrowing Capacity, Expected Percentage		92.50%
Threshold for revolver excess availability		30.00%
Projected revolver usage percentage of the borrowing base during the prospective 12-month period, which is subject to meeting a fixed charge coverage ratio		15.00%
Pro Forma, Fixed Charge Coverage Ratio		1.1
Fixed charge coverage ratio		1.0
Commitment or the borrowing base, amount		$ 30,000,000
Lesser of the total commitment or the borrowing base, percentage		10.00%
Amended Five Year Revolving Credit Facility \| Minimum
Debt Disclosure [Line Items]
Line of credit facility unused capacity commitment fee percentage		0.25%
Amended Five Year Revolving Credit Facility \| Secured Debt
Debt Disclosure [Line Items]
Line of credit, maximum borrowing capacity		$ 1,000,000,000
Amended Five Year Revolving Credit Facility \| Unsecured Debt [Member]
Debt Disclosure [Line Items]
Line of credit, maximum borrowing capacity		750,000,000
Line Of Credit facility, for general unsecured obligations		250,000,000
Line Of credit facility, available for finance acquisitions		500,000,000
Amended Five Year Revolving Credit Facility \| Letter of Credit, sublimit
Debt Disclosure [Line Items]
Line of credit, maximum borrowing capacity		$ 50,000,000
London Interbank Offered Rate (LIBOR) \| Five Year Revolving Credit Facility
Debt Disclosure [Line Items]
Applicable margin rate				1.25%
London Interbank Offered Rate (LIBOR) \| Amended Five Year Revolving Credit Facility
Debt Disclosure [Line Items]
Percentage in addition to the effective rate		1.00%
London Interbank Offered Rate (LIBOR) \| Amended Five Year Revolving Credit Facility \| Minimum
Debt Disclosure [Line Items]
Interest Rate Margin		1.25%
London Interbank Offered Rate (LIBOR) \| Amended Five Year Revolving Credit Facility \| Maximum
Debt Disclosure [Line Items]
Interest Rate Margin		1.75%
Prime Rate \| Five Year Revolving Credit Facility
Debt Disclosure [Line Items]
Applicable margin rate				0.25%
Prime Rate \| Amended Five Year Revolving Credit Facility \| Minimum
Debt Disclosure [Line Items]
Interest Rate Margin		0.25%
Prime Rate \| Amended Five Year Revolving Credit Facility \| Maximum
Debt Disclosure [Line Items]
Interest Rate Margin		0.75%
Federal Funds Rate \| Amended Five Year Revolving Credit Facility
Debt Disclosure [Line Items]
Percentage in addition to the effective rate		0.50%
Senior Notes 5.5% due 2019 [Member]
Debt Disclosure [Line Items]
Debt Issuance Costs, Gross								$ 6,300,000
Senior Notes 5.5% due 2019 [Member] \| Unsecured Debt [Member]
Debt Disclosure [Line Items]
Long-term Debt				$ 347,200,000
Debt Instrument, Face Amount								$ 350,000,000
Debt Instrument, Covenant Description				The indenture governing the Senior Notes does not contain financial covenants but does contain covenants which place certain restrictions on us and our subsidiaries, including limitations on asset sales, additional liens, investments, stock repurchases, the incurrence of additional debt and the repurchase of debt that is junior to the Senior Notes.
Debt Instrument, Dividend Restrictions				In addition, the indenture restricts payments of dividends to stockholders (other than dividends payable in shares of capital stock) if one of the following conditions exist: (i) an event of default has occurred, (ii) we could not incur additional debt under the general debt covenant of the indenture or (iii) the sum of the proposed dividend and all other dividends and other restricted payments made under the indenture from the date of the indenture exceeds the sum of 50% of consolidated net income plus 100% of net proceeds from capital stock sales and other amounts set forth in and determined as provided in the indenture. These restrictions are subject to exceptions and qualifications, including that we can pay up to $175 million in dividends to stockholders in each fiscal year and we can pay dividends and make other restricted payments in an unlimited amount if our leverage ratio on a pro forma basis after giving effect to the dividend payment and other restricted payments would be less than or equal to 1.0:1.0.
Debt Instrument, Interest Rate, Stated Percentage								5.50%
Long-term Debt, Gross				$ 350,000,000	350,000,000	350,000,000
Senior Notes 6.75% due 2021 [Member] \| Unsecured Debt [Member]
Debt Disclosure [Line Items]
Long-term Debt				469,200,000
Debt Instrument, Interest Rate, Stated Percentage							6.75%
Debt Issuance Costs, Gross							$ 8,100,000
Long-term Debt, Gross				$ 475,000,000	$ 475,000,000	$ 475,000,000

Debt Schedule of Long-Term Debt (Details) - USD ($) $ in Millions	Jul. 29, 2017	Jan. 28, 2017	Jul. 30, 2016
Debt Instrument [Line Items]
Debt Issuance Costs, Noncurrent, Net	$ (8.6)	$ (10.0)	$ (11.5)
Long-term debt	816.4	815.0	813.5
Unsecured Debt [Member] \| Senior Notes 5.5% due 2019 [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	350.0	350.0	350.0
Unsecured Debt [Member] \| Senior Notes 6.75% due 2021 [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 475.0	$ 475.0	$ 475.0

Commitments and Contingencies Income Taxes (Details) $ in Millions	Dec. 24, 2015 USD ($)
Income Tax Contingency [Line Items]
Income Tax Examination, Estimate of Possible Loss	$ 85.5

Commitments and Contingencies Earn-out Contingencies (Details) - USD ($) $ in Millions	Jul. 29, 2017	Aug. 02, 2016
Commitments and Contingencies Disclosure [Abstract]
Business Combination, Contingent Consideration, Liability		$ 43.2
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, Low	$ 40.0
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	$ 50.0

Computation of Net Income (Loss) Per Common Share - Reconciliation of Common Shares Used in Calculating Basic and Diluted Net Income (Loss) Per Common Share (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jul. 29, 2017	Jul. 30, 2016	Jul. 29, 2017	Jul. 30, 2016
Equity [Abstract]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	2.1	1.4	2.1	1.3
Net income	$ 22.2	$ 27.9	$ 81.2	$ 93.7
Basic weighted average common shares outstanding	101.4	104.0	101.3	103.9
Dilutive effect of stock options and restricted stock awards	0.1	0.3	0.1	0.3
Diluted weighted average common shares outstanding	101.5	104.3	101.4	104.2
Net income (loss) per common share:
Earnings Per Share, Basic	$ 0.22	$ 0.27	$ 0.80	$ 0.90
Earnings Per Share, Diluted	$ 0.22	$ 0.27	$ 0.80	$ 0.90

Computation of Net Income (Loss) Per Common Share - Reconciliation of Common Shares Used in Calculating Basic and Diluted Net Income (Loss) Per Common Share (Detail)(1) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jul. 29, 2017	Jul. 30, 2016	Jul. 29, 2017	Jul. 30, 2016
Equity [Abstract]
Net income	$ 22.2	$ 27.9	$ 81.2	$ 93.7
Antidilutive restricted shares and options excluded from computation of EPS	2.1	1.4	2.1	1.3
Basic weighted average common shares outstanding	101.4	104.0	101.3	103.9
Dilutive effect of stock options and restricted stock awards	0.1	0.3	0.1	0.3
Diluted	101.5	104.3	101.4	104.2
Earnings Per Share, Basic	$ 0.22	$ 0.27	$ 0.80	$ 0.90
Earnings Per Share, Diluted	$ 0.22	$ 0.27	$ 0.80	$ 0.90

Significant Products - Sales and Percentage of Total Net Sales by Significant Product Category (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 29, 2017	Jul. 30, 2016	Jul. 29, 2017	Jul. 30, 2016
Product Information [Line Items]
Net sales	$ 1,687.6	$ 1,631.8	$ 3,733.5	$ 3,603.3
Percent of Total	100.00%	100.00%	100.00%	100.00%
New Video Game Hardware
Product Information [Line Items]
Net sales	$ 248.4	$ 216.4	$ 638.3	$ 529.3
Percent of Total	14.70%	13.30%	17.10%	14.70%
New Video Game Software
Product Information [Line Items]
Net sales	$ 369.3	$ 382.2	$ 889.8	$ 949.4
Percent of Total	21.90%	23.40%	23.80%	26.30%
Pre-Owned Video Game Products
Product Information [Line Items]
Net sales	$ 501.8	$ 542.6	$ 1,028.0	$ 1,103.5
Percent of Total	29.70%	33.30%	27.50%	30.60%
Video Game Accessories
Product Information [Line Items]
Net sales	$ 144.1	$ 119.5	$ 320.2	$ 282.2
Percent of Total	8.50%	7.30%	8.60%	7.80%
Digital
Product Information [Line Items]
Net sales	$ 46.5	$ 36.3	$ 90.6	$ 79.1
Percent of Total	2.80%	2.20%	2.40%	2.20%
Technology Brands [Member]
Product Information [Line Items]
Net sales	$ 188.3	$ 175.9	$ 389.7	$ 341.7
Percent of Total	11.20%	10.80%	10.40%	9.50%
Collectibles [Member]
Product Information [Line Items]
Net sales	$ 122.5	$ 90.0	$ 237.0	$ 172.3
Percent of Total	7.30%	5.50%	6.40%	4.80%
Other
Product Information [Line Items]
Net sales	$ 66.7	$ 68.9	$ 139.9	$ 145.8
Percent of Total	3.90%	4.20%	3.80%	4.10%

Significant Products - Gross Profit and Gross Profit Percentages by Significant Product Category (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 29, 2017	Jul. 30, 2016	Jul. 29, 2017	Jul. 30, 2016
Product Information [Line Items]
Gross Profit	$ 623.7	$ 617.7	$ 1,326.2	$ 1,293.2
Gross Profit Percent	37.00%	37.90%	35.50%	35.90%
New Video Game Hardware
Product Information [Line Items]
Gross Profit	$ 26.7	$ 30.0	$ 64.8	$ 58.3
Gross Profit Percent	10.70%	13.90%	10.20%	11.00%
New Video Game Software
Product Information [Line Items]
Gross Profit	$ 81.8	$ 98.1	$ 195.5	$ 226.0
Gross Profit Percent	22.20%	25.70%	22.00%	23.80%
Pre-Owned Video Game Products
Product Information [Line Items]
Gross Profit	$ 225.6	$ 244.0	$ 479.3	$ 507.2
Gross Profit Percent	45.00%	45.00%	46.60%	46.00%
Video Game Accessories
Product Information [Line Items]
Gross Profit	$ 47.7	$ 45.7	$ 103.6	$ 102.8
Gross Profit Percent	33.10%	38.20%	32.40%	36.40%
Digital
Product Information [Line Items]
Gross Profit	$ 37.9	$ 32.7	$ 74.0	$ 69.7
Gross Profit Percent	81.50%	90.10%	81.70%	88.10%
Technology Brands [Member]
Product Information [Line Items]
Gross Profit	$ 138.9	$ 110.7	$ 283.5	$ 220.4
Gross Profit Percent	73.80%	62.90%	72.70%	64.50%
Collectibles [Member]
Product Information [Line Items]
Gross Profit	$ 43.2	$ 34.7	$ 78.4	$ 63.3
Gross Profit Percent	35.30%	38.60%	33.10%	36.70%
Other
Product Information [Line Items]
Gross Profit	$ 21.9	$ 21.8	$ 47.1	$ 45.5
Gross Profit Percent	32.80%	31.60%	33.70%	31.20%

Segment Information - Sales by Segment (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jul. 29, 2017	Jul. 30, 2016	Jul. 29, 2017	Jul. 30, 2016
Segment Reporting Information [Line Items]
Net sales	$ 1,687,600,000	$ 1,631,800,000	$ 3,733,500,000	$ 3,603,300,000
Segment operating earnings (loss)	43,600,000	58,300,000	144,700,000	172,300,000
Interest income	0	300,000	200,000	500,000
Interest expense	(14,400,000)	(13,900,000)	(28,500,000)	(24,900,000)
Earnings before income taxes	29,200,000	44,700,000	116,400,000	147,900,000
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Net sales			0
Technology Brands [Member]
Segment Reporting Information [Line Items]
Net sales	188,300,000	175,900,000	389,700,000	341,700,000
Segment operating earnings (loss)	15,000,000	13,900,000	26,100,000	32,700,000
CANADA \| Video Game Brands - Canada [Member]
Segment Reporting Information [Line Items]
Net sales	69,900,000	66,600,000	159,800,000	144,300,000
Segment operating earnings (loss)	(300,000)	1,200,000	1,900,000	5,000,000
Australia And New Zealand [Member] \| Video Game Brands - Australia [Member]
Segment Reporting Information [Line Items]
Net sales	145,300,000	127,400,000	282,000,000	237,300,000
Segment operating earnings (loss)	3,100,000	3,000,000	4,900,000	3,500,000
Europe \| Video Game Brands - Europe [Member]
Segment Reporting Information [Line Items]
Net sales	266,300,000	239,200,000	544,700,000	488,700,000
Segment operating earnings (loss)	(11,400,000)	(11,000,000)	(11,300,000)	(14,500,000)
United States \| Video Game Brands - United States [Member]
Segment Reporting Information [Line Items]
Net sales	1,017,800,000	1,022,700,000	2,357,300,000	2,391,300,000
Segment operating earnings (loss)	$ 37,200,000	$ 51,200,000	$ 123,100,000	$ 145,600,000

Segment Information - Narrative (Detail)	3 Months Ended		6 Months Ended
Segment Information - Narrative (Detail)	Jul. 29, 2017 USD ($) Location	Jul. 30, 2016 USD ($)	Jul. 29, 2017 USD ($) Location	Jul. 30, 2016 USD ($)
Segment Reporting Disclosure [Line Items]
Number of Reportable Segments			5
Net sales	$ 1,687,600,000	$ 1,631,800,000	$ 3,733,500,000	$ 3,603,300,000
Segment Reporting Description Of Segments			Segment results for the United States include retail operations in 50 states, the District of Columbia, Guam and Puerto Rico; our electronic commerce websites www.gamestop.com and www.thinkgeek.com; Game Informer magazine; and Kongregate, our leading web and mobile gaming platform.
Segment operating earnings (loss)	43,600,000	58,300,000	$ 144,700,000	172,300,000
Interest income	0	300,000	200,000	500,000
Interest expense	(14,400,000)	(13,900,000)	(28,500,000)	(24,900,000)
Earnings before income taxes	29,200,000	44,700,000	$ 116,400,000	147,900,000
Video Game Brands - United States [Member]
Segment Reporting Disclosure [Line Items]
Number of Reportable Segments			4
Technology Brands [Member]
Segment Reporting Disclosure [Line Items]
Net sales	188,300,000	175,900,000	$ 389,700,000	341,700,000
Segment operating earnings (loss)	$ 15,000,000	13,900,000	26,100,000	32,700,000
Intersegment Eliminations [Member]
Segment Reporting Disclosure [Line Items]
Net sales			$ 0
United States
Segment Reporting Disclosure [Line Items]
Number of states the entity operates \| Location	50		50
United States \| Video Game Brands - United States [Member]
Segment Reporting Disclosure [Line Items]
Net sales	$ 1,017,800,000	1,022,700,000	$ 2,357,300,000	2,391,300,000
Segment operating earnings (loss)	37,200,000	51,200,000	123,100,000	145,600,000
Europe \| Video Game Brands - Europe [Member]
Segment Reporting Disclosure [Line Items]
Net sales	266,300,000	239,200,000	544,700,000	488,700,000
Segment operating earnings (loss)	$ (11,400,000)	(11,000,000)	$ (11,300,000)	(14,500,000)
Europe \| Retail Site
Segment Reporting Disclosure [Line Items]
Number of countries in which the entity operates \| Location	10		10
CANADA \| Video Game Brands - Canada [Member]
Segment Reporting Disclosure [Line Items]
Net sales	$ 69,900,000	66,600,000	$ 159,800,000	144,300,000
Segment operating earnings (loss)	(300,000)	1,200,000	1,900,000	5,000,000
Australia And New Zealand [Member] \| Video Game Brands - Australia [Member]
Segment Reporting Disclosure [Line Items]
Net sales	145,300,000	127,400,000	282,000,000	237,300,000
Segment operating earnings (loss)	$ 3,100,000	$ 3,000,000	$ 4,900,000	$ 3,500,000