CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Loss	Retained Earnings Cumulative Effect, Period of Adoption, Adjustment	Retained Earnings	Common Stock Held in Treasury Cumulative Effect, Period of Adoption, Adjustment	Common Stock Held in Treasury	Cumulative Effect, Period of Adoption, Adjustment	Total
Balance at beginning of period at Jan. 31, 2021	$ 264	$ 448,417	$ (2,094)	$ (271)	$ 916,683		$ (27,029)	$ (271)	$ 1,336,241
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity awards exercised/vested, net		(5,026)					5,026
Share-based compensation expense		8,419							8,419
Taxes paid for net share settlements		(4,334)							(4,334)
Other comprehensive income (loss), net			(4,932)						(4,932)
Net income (loss)					45,489				45,489
Balance at end of period at Jul. 31, 2021	264	447,476	(7,026)		961,901		(22,003)		1,380,612
Balance at beginning of period at Apr. 30, 2021	264	450,961	(9,057)		942,733		(27,025)		1,357,876
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity awards exercised/vested, net		(5,022)					5,022
Share-based compensation expense		5,871							5,871
Taxes paid for net share settlements		(4,334)							(4,334)
Other comprehensive income (loss), net			2,031						2,031
Net income (loss)					19,168				19,168
Balance at end of period at Jul. 31, 2021	264	447,476	(7,026)		961,901		(22,003)		1,380,612
Balance at beginning of period at Jan. 31, 2022	264	456,329	(14,529)		1,117,005		(39,157)		1,519,912
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity awards exercised/vested, net		(10,163)					10,163
Share-based compensation expense		25,245							25,245
Taxes paid for net share settlements		(9,790)							(9,790)
Other comprehensive income (loss), net			(1,697)						(1,697)
Repurchases of common stock							(16,622)		(16,622)
Net income (loss)					66,953				66,953
Balance at end of period at Jul. 31, 2022	264	461,621	(16,226)		1,183,958		(45,616)		1,584,001
Balance at beginning of period at Apr. 30, 2022	264	460,999	(18,657)		1,147,639	$ (16,622)	(31,953)	$ (16,622)	1,558,292
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity awards exercised/vested, net		(2,959)					2,959
Share-based compensation expense		4,696							4,696
Taxes paid for net share settlements		(1,115)							(1,115)
Other comprehensive income (loss), net			2,431						2,431
Net income (loss)					36,319				36,319
Balance at end of period at Jul. 31, 2022	$ 264	$ 461,621	$ (16,226)		$ 1,183,958		$ (45,616)		$ 1,584,001