Fair Value Measurements - Balance Sheet Items (Details) (USD $) In Thousands, unless otherwise specified	May 03, 2014	Feb. 01, 2014	May 04, 2013
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	$ 595,950	$ 423,168	$ 714,174
Investments	0	12,006	0
Restricted investments	3,819	3,994	4,170
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments	3,670	3,710	5,340
Restricted investments	$ 113	$ 115	$ 1,130