Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Apr. 29, 2017	Apr. 30, 2016
Cash Flows From Operating Activities:
Net income	$ 33,619	$ 31,084
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	25,145	27,957
Loss on disposal and impairment of property and equipment	513	597
Deferred income taxes	4,905	307
Stock-based compensation expense	5,794	5,546
Deferred rent and lease credits	(4,358)	(5,007)
Changes in assets and liabilities:
Inventories	(41,516)	(34,154)
Prepaid expenses and other current assets	5,264	(3,613)
Income tax receivable	691	18,230
Accounts payable	6,358	4,814
Accrued and other liabilities	(19,724)	(13,029)
Net cash provided by operating activities	16,691	32,732
Cash Flows From Investing Activities:
Purchases of marketable securities	(8,491)	(11,403)
Proceeds from sale of marketable securities	8,259	11,156
Purchases of property and equipment, net	(9,531)	(13,056)
Net cash used in investing activities	(9,763)	(13,303)
Cash Flows From Financing Activities:
Payments on borrowings	(5,000)	(2,500)
Proceeds from issuance of common stock	1,062	1,177
Dividends paid	(10,862)	(10,864)
Repurchase of common stock	(9,498)	(36,637)
Payments of tax withholdings related to stock-based awards	(5,599)	(4,023)
Net cash used in financing activities	(29,897)	(52,847)
Effects of exchange rate changes on cash and cash equivalents	(24)	(31)
Net decrease in cash and cash equivalents	(22,993)	(33,449)
Cash and Cash Equivalents, Beginning of period	142,135	89,951
Cash and Cash Equivalents, End of period	119,142	56,502
Supplemental Disclosures of Cash Flow Information:
Cash paid for interest	593	532
Cash paid for income taxes, net	$ 337	$ 377