Investments and Restricted Investments (Balance Sheet Items) (Details) - USD ($) $ in Thousands	Feb. 02, 2019	Feb. 03, 2018	Jan. 28, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted cash and cash equivalents	$ 65,167	$ 62,978	$ 64,581
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents (Level 1)	1,412,912	1,290,294
Restricted cash and cash equivalents	65,167	62,978
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments (Level 2)	125	1,224
Restricted investments (Level 2)	$ 400	$ 2,838