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Fair Value (Assets and Liabilities at Fair Value) (Details) (USD $)
Nov. 01, 2014
Nov. 01, 2014
Fair Value, Measurements, Recurring
Feb. 01, 2014
Fair Value, Measurements, Recurring
Nov. 01, 2014
Level 1
Fair Value, Measurements, Recurring
Feb. 01, 2014
Level 1
Fair Value, Measurements, Recurring
Nov. 01, 2014
Level 2
Fair Value, Measurements, Recurring
Feb. 01, 2014
Level 2
Fair Value, Measurements, Recurring
Nov. 01, 2014
Level 3
Fair Value, Measurements, Recurring
Feb. 01, 2014
Level 3
Fair Value, Measurements, Recurring
Nov. 01, 2014
Term Loan Facility
Aug. 07, 2014
2012 Term Loan Agreement
Feb. 01, 2014
2012 Term Loan Agreement
Aug. 07, 2014
Amended and Restated Credit Agreement
Feb. 01, 2014
Amended and Restated Credit Agreement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                            
Borrowings, gross at carrying amount                   $ 300,000,000        
Long-term Debt 296,600,000                          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]                            
Credit facility, amount outstanding                     127,500,000 135,000,000 60,000,000 0
Assets, Fair Value Disclosure [Abstract]                            
Money Market Funds Fair Value Disclosure   19,820,000 148,024,000 19,820,000 148,024,000 0 0 0 0          
Derivative Asset   8,095,000 969,000 0 0 8,095,000 969,000 0 0          
Assets, Fair Value Disclosure   27,915,000 148,993,000 19,820,000 148,024,000 8,095,000 969,000 0 0          
Liabilities, Fair Value Disclosure [Abstract]                            
Derivative financial instruments   133,000 2,555,000 0 0 133,000 2,555,000 0 0          
Total liabilities measured at fair value   $ 133,000 $ 2,555,000 $ 0 $ 0 $ 133,000 $ 2,555,000 $ 0 $ 0