XML 28 R32.htm IDEA: XBRL DOCUMENT v2.4.0.6
Disclosures About Fair Value Of Financial Instruments (Narrative) (Details) (USD $)
Apr. 28, 2012
Jan. 28, 2012
Apr. 30, 2011
Disclosures About Fair Value Of Financial Instruments [Abstract]      
Fair value of long-term debt $ 927,200,000   $ 885,200,000
Carrying value of long-term debt $ 774,495,000 $ 774,476,000 $ 774,419,000