Unaudited Condensed Consolidated Statements of Stockholders Investment - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2020	Nov. 02, 2019	Oct. 31, 2020		Nov. 02, 2019
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance-beginning of period	$ 345,679	$ 339,945	$ 328,983		$ 336,049
Net income	25,266	2,265	50,334		21,344
Issuance of shares through the Company's equity plans	1,202	88	1,462		378
Adjustments for adoption of accounting standard			(256)	[1]	(2,080)	[2]
Purchase of shares under the stock repurchase program		(7,044)	(9,748)		(20,789)
Settlement of net share equity awards			(483)		(556)
Stock-based compensation	1,014	905	2,869		1,811
Balance-end of period	$ 373,161	$ 336,159	$ 373,161		$ 336,159
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance-beginning of period (in shares)	39,287,000	39,125,000	39,141,000		38,983,000
Balance-beginning of period	$ 393	$ 391	$ 391		$ 390
Issuance of shares through the Company's equity plans (in shares)	52,000	6,000	198,000		148,000
Issuance of shares through the Company's equity plans			$ 2		$ 1
Balance-end of period (in shares)	39,339,000	39,131,000	39,339,000		39,131,000
Balance-end of period	$ 393	$ 391	$ 393		$ 391
Paid-In Capital
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance-beginning of period	190,992	186,947	188,879		185,752
Issuance of shares through the Company's equity plans	1,202	88	1,460		377
Stock-based compensation	1,014	905	2,869		1,811
Balance-end of period	193,208	187,940	193,208		187,940
Retained Earnings
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance-beginning of period	809,754	776,677	784,942		759,677
Net income	25,266	2,265	50,334		21,344
Adjustments for adoption of accounting standard			(256)	[1]	(2,080)	[2]
Balance-end of period	$ 835,020	$ 778,942	$ 835,020		$ 778,942
Treasury Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance-beginning of period (in shares)	22,743,000	21,376,000	22,280,000		20,686,000
Balance-beginning of period	$ (655,460)	$ (624,070)	$ (645,229)		$ (609,770)
Purchase of shares under the stock repurchase program (in shares)		372,000	428,000		1,032,000
Purchase of shares under the stock repurchase program		$ (7,044)	$ (9,748)		$ (20,789)
Settlement of net share equity awards (in shares)			35,000		29,000
Settlement of net share equity awards			$ (483)		$ (556)
Balance-end of period (in shares)	22,743,000	21,748,000	22,743,000		21,748,000
Balance-end of period	$ (655,460)	$ (631,114)	$ (655,460)		$ (631,114)

[1] Adoption of Accounting Standards Update (ASU) No. 2016-13, Topic 326, Financial Instruments - Credit Losses: Measurement of Credit Losses on Financial Instruments. See Note 2, Recent Accounting Pronouncements, in this Quarterly Report on Form 10-Q.

[2] Adoption of ASU 2016-02, Topic 842, Leases. See Note 2, Recent Accounting Pronouncements, in our Annual Report on Form 10-K filed on April 16, 2020.