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Employee Benefit Plans (Narrative) (Details) - USD ($)
$ in Thousands
12 Months Ended
Feb. 03, 2018
Jan. 28, 2017
Jan. 30, 2016
Defined Contribution Plan [Abstract]      
Company match of employee salary (in percentage) 4.00%    
Company contributions $ 15,400 $ 13,900 $ 12,700
Underlying assets in non-qualified deferred compensation program 120,613 100,423  
Liability to participants 120,613 100,423  
Estimated liability for post-employment medical benefits $ 7,300 $ 8,000