Condensed Consolidated Statement of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands		Total	Common Stock	Treasury Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Balance at Mar. 31, 2022		$ 423,078	$ 692	$ (35,874)	$ 329,917	$ 130,252	$ (1,909)
Balance, Shares at Mar. 31, 2022			67,075,000
Common stock issued under stock plans, net of shares withheld for taxes		(1,600)	$ 12		(1,612)
Common stock issued under stock plans, net of shares withheld for taxes, Shares			1,137,000
Stock-based compensation		8,766			8,766
Repurchase of common stock	[1]	(2,505)		(2,505)
Repurchase of common stock, Shares	[1]		(148,000)
Components of other comprehensive income:
Translation adjustments		(28)					(28)
Net income		1,148				1,148
Balance at Jun. 30, 2022		428,859	$ 704	(38,379)	337,071	131,400	(1,937)
Balance, Shares at Jun. 30, 2022			68,064,000
Balance at Mar. 31, 2022		423,078	$ 692	(35,874)	329,917	130,252	(1,909)
Balance, Shares at Mar. 31, 2022			67,075,000
Components of other comprehensive income:
Translation adjustments		(33)
Net income		14,771
Balance at Sep. 30, 2022		441,842	$ 704	(45,752)	343,809	145,023	(1,942)
Balance, Shares at Sep. 30, 2022			67,605,000
Balance at Jun. 30, 2022		428,859	$ 704	(38,379)	337,071	131,400	(1,937)
Balance, Shares at Jun. 30, 2022			68,064,000
Common stock issued under stock plans, net of shares withheld for taxes		(1,949)			(1,949)
Common stock issued under stock plans, net of shares withheld for taxes, Shares			(31,000)
Stock-based compensation		8,687			8,687
Repurchase of common stock	[2]	(7,373)		(7,373)
Repurchase of common stock, Shares	[2]		(428,000)
Components of other comprehensive income:
Translation adjustments		(5)					(5)
Net income		13,623				13,623
Balance at Sep. 30, 2022		441,842	$ 704	(45,752)	343,809	145,023	(1,942)
Balance, Shares at Sep. 30, 2022			67,605,000
Balance at Mar. 31, 2023		400,435	$ 709	(85,752)	359,342	127,598	(1,462)
Balance, Shares at Mar. 31, 2023			66,026,000
Common stock issued under stock plans, net of shares withheld for taxes		(3,248)	$ 10		(3,258)
Common stock issued under stock plans, net of shares withheld for taxes, Shares			1,017,000
Stock-based compensation		7,956			7,956
Components of other comprehensive income:
Unrealized gain (loss) on marketable securities, net of tax		(776)					(776)
Translation adjustments		(1)					(1)
Net income		6,156				6,156
Balance at Jun. 30, 2023		410,522	$ 719	(85,752)	364,040	133,754	(2,239)
Balance, Shares at Jun. 30, 2023			67,043,000
Balance at Mar. 31, 2023		$ 400,435	$ 709	(85,752)	359,342	127,598	(1,462)
Balance, Shares at Mar. 31, 2023			66,026,000
Repurchase of common stock, Shares		0
Components of other comprehensive income:
Unrealized gain (loss) on marketable securities, net of tax		$ (42)
Translation adjustments		(77)
Net income		11,211
Balance at Sep. 30, 2023		423,275	$ 719	(85,752)	371,080	138,809	(1,581)
Balance, Shares at Sep. 30, 2023			67,097,000
Balance at Jun. 30, 2023		410,522	$ 719	(85,752)	364,040	133,754	(2,239)
Balance, Shares at Jun. 30, 2023			67,043,000
Common stock issued under stock plans, net of shares withheld for taxes		(2,426)			(2,426)
Common stock issued under stock plans, net of shares withheld for taxes, Shares			54,000
Stock-based compensation		9,466			9,466
Components of other comprehensive income:
Unrealized gain (loss) on marketable securities, net of tax		734
Reclassification of unrealized loss on marketable securities		734					734
Translation adjustments		(76)					(76)
Net income		5,055				5,055
Balance at Sep. 30, 2023		$ 423,275	$ 719	$ (85,752)	$ 371,080	$ 138,809	$ (1,581)
Balance, Shares at Sep. 30, 2023			67,097,000

[1] Weighted-average repurchase price (dollars per share) for the three months ended June 30, 2022 was $16.93.

[2] Weighted-average repurchase price (dollars per share) for the three months ended September 30, 2022 was $17.21.