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Fair Value Measurements - Underlying Asset Value (Details) - USD ($)
$ in Thousands
Apr. 30, 2016
Jan. 30, 2016
May 02, 2015
Investment [Line Items]      
Underlying assets in non-qualified deferred compensation program $ 96,804 $ 86,073 $ 102,861
Level 1 [Member]      
Investment [Line Items]      
Underlying assets in non-qualified deferred compensation program 81,285 73,633 89,536
Level 2 [Member]      
Investment [Line Items]      
Underlying assets in non-qualified deferred compensation program $ 15,519 $ 12,440 $ 13,325