Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Details)

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Fair Value Measurements (Details) - USD ($)
$ in Thousands
Oct. 31, 2015
Jan. 31, 2015
Nov. 01, 2014
Fair Value of Financial Instruments      
Long-term debt, Carrying Amount $ 1,656,206 $ 1,648,686 $ 1,649,606
Level 1      
Fair Value of Financial Instruments      
Long-term debt, Estimated Fair Value $ 1,711,104    
Level 2      
Fair Value of Financial Instruments      
Long-term debt, Estimated Fair Value   $ 1,706,546 $ 1,718,902