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Investments and Restricted Investments Investments and Restricted Investments - Underlying Assets in Deferred Compensation Program (Details) - USD ($)
$ in Thousands
Jan. 30, 2016
Jan. 31, 2015
Investment [Line Items]    
Underlying assets in non-qualified deferred compensation program $ 86,073 $ 94,054
Level 1 [Member]    
Investment [Line Items]    
Underlying assets in non-qualified deferred compensation program 73,633 81,926
Level 2 [Member]    
Investment [Line Items]    
Underlying assets in non-qualified deferred compensation program $ 12,440 $ 12,128