Basis of Presentation and Summary of Significant Accounting Policies - Supplemental Cash Flow Disclosures (Details) - USD ($) $ in Thousands	9 Months Ended
	Oct. 29, 2016	Oct. 31, 2015
Supplemental disclosure of cash flow information:
Cash paid for interest, including capital leases	$ 3,127	$ 2,162
Cash paid for income taxes, excluding impact of refunds	102,418	55,671
Gross proceeds from borrowings under the bank credit facility	1,285,500	1,190,900
Gross repayments of borrowings under the bank credit facility	984,900	918,100
Non-cash activity:
Assets acquired under capital leases	171	9,600
Accrued property and equipment	$ 10,074	$ 10,700