Investments and Restricted Investments - Balance Sheet Items (Details) - USD ($) $ in Thousands	Feb. 03, 2018	Jan. 28, 2017
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents (Level 1)	$ 1,290,294	$ 1,111,599
Restricted cash and cash equivalents	62,978	64,581
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments (Level 2)	1,224	1,288
Restricted investments (Level 2)	$ 2,838	$ 3,628