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Investments and Restricted Investments (Balance Sheet Items) (Details) - USD ($)
$ in Thousands
Feb. 01, 2020
Feb. 02, 2019
Feb. 03, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Restricted cash and cash equivalents (Level 1) $ 60,205 $ 65,167 $ 62,978
Level 1      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Cash and cash equivalents (Level 1) 1,351,205 1,412,912  
Restricted cash and cash equivalents (Level 1) 60,205 65,167  
Level 2      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments (Level 2) 8 125  
Restricted investments (Level 2) $ 0 $ 400