Commitments and Contingencies Purchase Obligations (Details) (USD $)	12 Months Ended
	Jan. 28, 2012
Long-term Purchase Commitment [Line Items]
Letters of Credit Outstanding, Amount	$ 147,800,000
Unrecorded Unconditional Purchase Obligation, Due within One Year	369,143,000
Unrecorded Unconditional Purchase Obligation, Due within Three Years	49,588,000
Unrecorded Unconditional Purchase Obligation, Due within Five Years	18,755,000
Unrecorded Unconditional Purchase Obligation, Due after Five Years	51,435,000
Long-term Purchase Commitment, Amount	$ 488,921,000