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Fair Value of Financial Assets and Liabilities - Carrying and Fair Values of Financial Instruments Not Carried at Fair Value (Details) (USD $)
In Thousands, unless otherwise specified
Aug. 01, 2014
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]  
Long-term Debt $ 513,713
Level 2 | Carrying Amount
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]  
Long-term Debt 513,713
Level 2 | Fair Value
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]  
Long-term Debt $ 510,502