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Investment in JJB Sports (Details) Share data in Millions, unless otherwise specified	0 Months Ended	3 Months Ended	12 Months Ended				6 Months Ended		6 Months Ended
	Apr. 27, 2012 USD ($)	May 04, 2013 USD ($)	Feb. 01, 2014 USD ($)	Feb. 02, 2013 USD ($)	Jan. 28, 2012 USD ($)	Apr. 27, 2012 GBP (£)	Jul. 28, 2012 JJB Sports equity securities USD ($)	Apr. 27, 2012 JJB Sports equity securities GBP (£)	Jul. 28, 2012 JJB Sports convertible notes USD ($)	Apr. 27, 2012 JJB Sports convertible notes GBP (£)
Investment in JJB Sports
Aggregate investment amount						£ 20,000,000		£ 1,250,000		£ 18,750,000
Ordinary shares								12.5
Total cash outlay	32,000,000		0	31,986,000	0
Other-than-temporary impairment charges on available-for-sale securities			0	32,370,000	0		2,000,000		30,400,000
Partial recovery related to previously impaired investment in JJB Sports		$ 4,300,000

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Investments in debt and equity securities which are categorized neither as held-to-maturity nor trading and which are intended to be sold or mature more than one year from the balance sheet date or operating cycle, if longer. Such securities are reported at fair value; unrealized gains (losses) related to Available-for-sale Securities are excluded from earnings and reported in a separate component of shareholders' equity (other comprehensive income), unless the Available-for-sale security is designated as a hedge or is determined to have had an other than temporary decline in fair value below its amortized cost basis. All or a portion of the unrealized holding gain (loss) of an Available-for-sale security that is designated as being hedged in a fair value hedge is recognized in earnings during the period of the hedge, as are other than temporary declines in fair value below the cost basis for investments in equity securities and debt securities that an entity intends to sell or it is more likely than not that it will be required to sell before the recovery of its amortized cost basis. Other than temporary declines in fair value below the cost basis for debt securities categorized as Available-for-sale that an entity does not intend to sell and for which it is not more likely than not that the entity will be required to sell before the recovery of its amortized cost basis are bifurcated into credit losses and losses related to all other factors. Other than temporary declines in fair value below cost basis related to credit losses are recognized in earnings, and losses related to all other factors are recognized in other comprehensive income.

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