CONSOLIDATED STATEMENTS OF SHAREHOLDERS’ EQUITY - USD ($) $ in Thousands	Total	Common Stock	Treasury Stock	Additional Paid-In Capital	(Accumulated Deficit) Retained Earnings	Accumulated Other Comprehensive Loss
Balance, beginning of period at Dec. 31, 2020	$ 805,779	$ 355	$ (5,578)	$ 695,904	$ 115,229	$ (131)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	181,848				181,848
Foreign currency translation	(4,715)					(4,715)
Stock-based compensation expense	14,469			14,469
Stock options exercised	17,643	8	151	17,484
Repurchases of common stock	(62,096)	(3)			(62,093)
Balance, end of period at Dec. 31, 2021	952,928	360	(5,427)	727,857	234,984	(4,846)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	245,368				245,368
Foreign currency translation	(7,546)					(7,546)
Stock-based compensation expense	21,412			21,412
Stock options exercised	22,074	6	1,746	21,525	(1,203)
Repurchases of common stock	(847,849)	(57)	(14,243)		(833,549)
Retirement of treasury stock	0		5,427		(5,427)
Balance, end of period at Dec. 31, 2022	386,387	309	(12,497)	770,794	(359,827)	(12,392)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	282,810				282,810
Foreign currency translation	2,320					2,320
Stock-based compensation expense	20,516			20,516
Stock options exercised	11,378	7		11,371
Repurchases of common stock	(144,461)	(8)			(144,453)
Re-issuance of treasury stock	0		175		(175)
Balance, end of period at Dec. 31, 2023	$ 558,950	$ 308	$ (12,322)	$ 802,681	$ (221,645)	$ (10,072)