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Supplemental Cash Flow Information (Supplemental Cash Flow) (Details) (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Aug. 13, 2012
Aug. 15, 2011
Supplemental Cash Flow Information [Abstract]    
Interest, net of amounts capitalized $ 36,658 $ 37,369
Income taxes paid (received), net 3,164 (326)
Capital lease obligations incurred to acquire assets 1,042 2,456
Accrued property and equipment purchases $ 1,224 $ 3,983