Basis of Presentation and Summary of Significant Accounting Policies - Supplemental Cash Flow Disclosures (Details) - USD ($) $ in Thousands	6 Months Ended
	Jul. 29, 2017	Jul. 30, 2016
Supplemental disclosure of cash flow information:
Cash paid for interest, including capital leases	$ 2,094	$ 1,782
Cash paid for income taxes, excluding impact of refunds	84,579	101,047
Gross proceeds from borrowings under the bank credit facility	826,000	884,900
Gross repayments of borrowings under the bank credit facility	705,800	689,300
Non-cash activity:
Assets acquired under capital leases	72	132
Accrued property and equipment	$ 13,322	$ 11,179