Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands		Common Stock [Member]	Additional Paid-in Capital [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balances (in shares) at Dec. 31, 2021		39,112
Balance at Dec. 31, 2021		$ 39	$ 477,323	$ 1,007	$ (41,655)	$ 436,714
Net income		0	0	0	25,410	25,410
Other comprehensive income (loss), net of tax		$ 0	0	(1,677)	0	(1,677)
Issuance of common stock upon exercise of stock options (in shares)		66
Issuance of common stock upon exercise of stock options		$ 0	2,569	0	0	2,569
Repurchase of common stock (in shares)		(368)
Repurchase of common stock		$ 0	(4,416)	0	(42,165)	(46,581)
Issuance of common stock upon vesting of restricted stock units (in shares)		70
Issuance of common stock upon vesting of restricted stock units		$ 0	0	0	0	0
Taxes related to net share settlement of equity awards (in shares)		(28)
Taxes related to net share settlement of equity awards		$ 0	(3,631)	0	0	(3,631)
Issuance of common stock through employee stock purchase plan (in shares)		23
Issuance of common stock through employee stock purchase plan		$ 0	2,086			2,086
Stock-based compensation		$ 0	11,745	0	0	11,745
Balances (in shares) at Mar. 31, 2022		38,875
Balance at Mar. 31, 2022		$ 39	485,676	(670)	(58,410)	426,635
Balances (in shares) at Dec. 31, 2021		39,112
Balance at Dec. 31, 2021		$ 39	477,323	1,007	(41,655)	436,714
Net income						52,006
Other comprehensive income (loss), net of tax						(1,632)
Balances (in shares) at Jun. 30, 2022		38,517
Balance at Jun. 30, 2022		$ 39	493,725	(625)	(96,301)	396,838
Balances (in shares) at Mar. 31, 2022		38,875
Balance at Mar. 31, 2022		$ 39	485,676	(670)	(58,410)	426,635
Net income		0	0	0	26,596	26,596
Other comprehensive income (loss), net of tax		$ 0	0	45	0	45
Issuance of common stock upon exercise of stock options (in shares)		146
Issuance of common stock upon exercise of stock options		$ 0	6,504	0	0	6,504
Repurchase of common stock (in shares)		(561)
Repurchase of common stock		$ 0	(6,745)	0	(64,487)	(71,232)
Issuance of common stock upon vesting of restricted stock units (in shares)		90
Issuance of common stock upon vesting of restricted stock units		$ 0	0	0	0	0
Taxes related to net share settlement of equity awards (in shares)		(33)
Taxes related to net share settlement of equity awards		$ 0	(4,530)	0	0	(4,530)
Stock-based compensation		$ 0	12,820	0	0	12,820
Balances (in shares) at Jun. 30, 2022		38,517
Balance at Jun. 30, 2022		$ 39	493,725	(625)	(96,301)	396,838
Balances (in shares) at Dec. 31, 2022		37,362
Balance at Dec. 31, 2022		$ 37	512,486	(1,947)	(221,447)	289,129
Net income		0	0	0	29,105	29,105
Other comprehensive income (loss), net of tax		$ 0	0	376	0	376
Issuance of common stock upon exercise of stock options (in shares)		61
Issuance of common stock upon exercise of stock options		$ 0	2,328	0	0	2,328
Repurchase of common stock (in shares)		(584)
Repurchase of common stock		$ 0	(7,014)	0	(60,018)	(67,032)
Issuance of common stock upon vesting of restricted stock units (in shares)		108
Issuance of common stock upon vesting of restricted stock units		$ 0	0	0	0	0
Taxes related to net share settlement of equity awards (in shares)		(43)
Taxes related to net share settlement of equity awards		$ 0	(5,105)	0	0	(5,105)
Issuance of common stock through employee stock purchase plan (in shares)		29
Issuance of common stock through employee stock purchase plan			2,988			2,988
Stock-based compensation		$ 0	16,033	0	0	16,033
Balances (in shares) at Mar. 31, 2023		36,933
Balance at Mar. 31, 2023		$ 37	521,716	(1,571)	(252,360)	267,822
Balances (in shares) at Dec. 31, 2022		37,362
Balance at Dec. 31, 2022		$ 37	512,486	(1,947)	(221,447)	289,129
Net income						64,487
Other comprehensive income (loss), net of tax						$ 231
Issuance of common stock upon exercise of stock options (in shares)	[1]					162
Balances (in shares) at Jun. 30, 2023		36,746
Balance at Jun. 30, 2023		$ 37	534,010	(1,716)	(255,313)	$ 277,018
Balances (in shares) at Mar. 31, 2023		36,933
Balance at Mar. 31, 2023		$ 37	521,716	(1,571)	(252,360)	267,822
Net income		0	0	0	35,382	35,382
Other comprehensive income (loss), net of tax		$ 0	0	(145)	0	(145)
Issuance of common stock upon exercise of stock options (in shares)		101
Issuance of common stock upon exercise of stock options		$ 0	4,820	0	0	4,820
Repurchase of common stock (in shares)		(346)
Repurchase of common stock		$ 0	(4,157)	0	(38,335)	(42,492)
Issuance of common stock upon vesting of restricted stock units (in shares)		96
Issuance of common stock upon vesting of restricted stock units		$ 0	0	0	0	0
Taxes related to net share settlement of equity awards (in shares)		(38)
Taxes related to net share settlement of equity awards		$ 0	(4,389)	0	0	(4,389)
Stock-based compensation		$ 0	16,020	0	0	16,020
Balances (in shares) at Jun. 30, 2023		36,746
Balance at Jun. 30, 2023		$ 37	$ 534,010	$ (1,716)	$ (255,313)	$ 277,018

[1] Included 348 thousand shares of PSOs.