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Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	May 04, 2013
Income Tax Disclosure [Abstract]
Estimated recovery related to previously impaired investment in JJB Sports	$ 4.3
Income tax expense related to estimated recovery of previously impaired investment in JJB Sports	$ 0

Amount of other deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. For example, but not limited to, acquisition-date income tax benefits or expenses recognized from changes in the acquirer's valuation allowance for its previously existing deferred tax assets resulting from a business combination and adjustments to beginning-of-year balance of a valuation allowance because of a change in circumstance causing a change in judgment about the realizability of the related deferred tax asset in future periods.

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