Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive (Loss)	Total
Balance at Dec. 31, 2023	$ 33	$ 547,189	$ 319,506	$ (1,846)	$ 864,882
Balance (in shares) at Dec. 31, 2023	32,685
Increase (Decrease) in Stockholders' Equity
Net Income (Loss)			51,595		51,595
Foreign currency translation adjustments				(1,731)	(1,731)
Change in pension obligation				5	5
Issuance of common stock on restricted stock units, net of shares withheld		(2,699)			(2,699)
Issuance of common stock on restricted stock units, net of shares withheld (in shares)	42
Stock-based compensation expense		4,690			4,690
Repurchase of common stock		(2,201)	(12,798)		(14,999)
Repurchase of common stock (in shares)	(122)
Balance at Mar. 31, 2024	$ 33	546,979	358,303	(3,572)	901,743
Balance (in shares) at Mar. 31, 2024	32,605
Balance at Dec. 31, 2023	$ 33	547,189	319,506	(1,846)	864,882
Balance (in shares) at Dec. 31, 2023	32,685
Increase (Decrease) in Stockholders' Equity
Net Income (Loss)					102,460
Foreign currency translation adjustments					(2,644)
Change in pension obligation					10
Balance at Jun. 30, 2024	$ 33	542,677	396,718	(4,480)	934,948
Balance (in shares) at Jun. 30, 2024	32,617
Balance at Mar. 31, 2024	$ 33	546,979	358,303	(3,572)	901,743
Balance (in shares) at Mar. 31, 2024	32,605
Increase (Decrease) in Stockholders' Equity
Net Income (Loss)			50,866		50,866
Foreign currency translation adjustments				(913)	(913)
Change in pension obligation				5	5
Issuance of stock under Employee Stock Purchase Plan		1,242			1,242
Issuance of stock under Employee Stock Purchase Plan (in shares)	10
Issuance of common stock on restricted stock units, net of shares withheld		(8,468)			(8,468)
Issuance of common stock on restricted stock units, net of shares withheld (in shares)	143
Stock-based compensation expense		5,469			5,469
Repurchase of common stock		(2,545)	(12,451)		(14,996)
Repurchase of common stock (in shares)	(141)
Balance at Jun. 30, 2024	$ 33	542,677	396,718	(4,480)	934,948
Balance (in shares) at Jun. 30, 2024	32,617
Balance at Dec. 31, 2024	$ 32	548,654	470,318	(6,214)	1,012,790
Balance (in shares) at Dec. 31, 2024	32,365
Increase (Decrease) in Stockholders' Equity
Net Income (Loss)			28,579		28,579
Foreign currency translation adjustments				646	646
Unrealized (losses) gains on available-for-sale investments				81	81
Issuance of common stock on restricted stock units, net of shares withheld		(1,583)			(1,583)
Issuance of common stock on restricted stock units, net of shares withheld (in shares)	38
Stock-based compensation expense		4,903			4,903
Repurchase of common stock		(4,954)	(13,224)		(18,178)
Repurchase of common stock (in shares)	(274)
Balance at Mar. 31, 2025	$ 32	547,020	485,673	(5,487)	1,027,238
Balance (in shares) at Mar. 31, 2025	32,129
Balance at Dec. 31, 2024	$ 32	548,654	470,318	(6,214)	1,012,790
Balance (in shares) at Dec. 31, 2024	32,365
Increase (Decrease) in Stockholders' Equity
Net Income (Loss)					59,955
Foreign currency translation adjustments					5,712
Unrealized (losses) gains on available-for-sale investments					23
Balance at Jun. 30, 2025	$ 31	535,667	487,164	(479)	1,022,383
Balance (in shares) at Jun. 30, 2025	31,418
Balance at Mar. 31, 2025	$ 32	547,020	485,673	(5,487)	1,027,238
Balance (in shares) at Mar. 31, 2025	32,129
Increase (Decrease) in Stockholders' Equity
Net Income (Loss)			31,376		31,376
Foreign currency translation adjustments				5,066	5,066
Unrealized (losses) gains on available-for-sale investments				(58)	(58)
Issuance of stock under Employee Stock Purchase Plan		1,246			1,246
Issuance of stock under Employee Stock Purchase Plan (in shares)	21
Issuance of common stock on restricted stock units, net of shares withheld		(2,569)			(2,569)
Issuance of common stock on restricted stock units, net of shares withheld (in shares)	94
Stock-based compensation expense		5,421			5,421
Repurchase of common stock	$ (1)	(15,451)	(29,885)		(45,337)
Repurchase of common stock (in shares)	(826)
Balance at Jun. 30, 2025	$ 31	$ 535,667	$ 487,164	$ (479)	$ 1,022,383
Balance (in shares) at Jun. 30, 2025	31,418