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Fair Value Measurements - Level 3 Roll - (Details) - USD ($)
$ in Thousands
3 Months Ended
Apr. 30, 2016
May. 02, 2015
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Redemptions $ 0  
FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems    
Begining Balance (6,187) $ (4,272)
Redemptions 0 (47)
Additions (836) 0
Losses (Gains) Included In Earnings (290) (195)
Ending Balance (7,313) (4,420)
Auction Rate Securities (ARS)    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Beginning Balance 0 $ 0
Redemptions 0  
Additions 0
Gains (Losses) Included in Earnings 0  
Gains (Losses) Included in Other Comprehensive Income 0 $ 0
Ending Balance 0 0
Privately Managed Funds    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Beginning Balance 0 306
Redemptions 0 $ 246
Additions 0
Gains (Losses) Included in Earnings 0 $ 0
Gains (Losses) Included in Other Comprehensive Income 0 (21)
Ending Balance 0 39
Cash Surrender Value - Life Insurance    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Beginning Balance 6,409 4,558
Redemptions 0 0
Additions 809 0
Gains (Losses) Included in Earnings (234) (215)
Gains (Losses) Included in Other Comprehensive Income 0 0
Ending Balance $ 7,452 $ 4,773