CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - UNAUDITED - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	Accumulated Earnings
Balance, beginning of period, shares at Dec. 31, 2022		31,269,000
Balance, beginning of period at Dec. 31, 2022	$ 355,249	$ 708	$ 495,189	$ (1,018,034)	$ (58,829)	$ 936,215
Net Income (Loss)						20,928
Foreign currency translation adjustments					2,843
Total comprehensive income	23,771
Repurchase of common stock, shares		(166,000)
Repurchase of common stock	(9,306)	$ (2)	(9,304)	0
Issuance of common stock pursuant to employee stock purchase plan	893		893
Issuance of common stock pursuant to employee stock purchase plan, shares		19,000
Issuance of restricted common stock pursuant to stock-based compensation plans, shares		574,000
Issuance of restricted common stock pursuant to stock-based compensation plans		$ 6	(6)
Cancellation of restricted common stock issued pursuant to stock-based compensation plans, shares		(18,000)
Stock-based compensation expense	6,412		6,412
Dividends	(8,796)					(8,796)
Balance, ending of period, shares at Mar. 31, 2023		31,678,000
Balance, ending of period at Mar. 31, 2023	368,223	$ 712	493,184	(1,018,034)	(55,986)	948,347
Balance, beginning of period, shares at Dec. 31, 2022		31,269,000
Balance, beginning of period at Dec. 31, 2022	355,249	$ 708	495,189	(1,018,034)	(58,829)	936,215
Net Income (Loss)	53,576
Foreign currency translation adjustments	(1,943)
Total comprehensive income	51,633
Balance, ending of period, shares at Sep. 30, 2023		29,726,000
Balance, ending of period at Sep. 30, 2023	260,491	$ 713	483,063	(1,125,897)	(60,772)	963,384
Balance, beginning of period, shares at Mar. 31, 2023		31,678,000
Balance, beginning of period at Mar. 31, 2023	368,223	$ 712	493,184	(1,018,034)	(55,986)	948,347
Net Income (Loss)						13,954
Foreign currency translation adjustments					1,709
Total comprehensive income	15,663
Repurchase of common stock, shares		(2,000)
Repurchase of common stock	(112)		(112)
Issuance of common stock pursuant to employee stock purchase plan	771		771
Issuance of common stock pursuant to employee stock purchase plan, shares		18,000
Issuance of restricted common stock pursuant to stock-based compensation plans, shares		64,000
Issuance of restricted common stock pursuant to stock-based compensation plans		$ 1	(1)
Cancellation of restricted common stock issued pursuant to stock-based compensation plans, shares		(7,000)
Stock-based compensation expense	7,644		7,644
Dividends	(8,878)					(8,878)
Balance, ending of period, shares at Jun. 30, 2023		31,751,000
Balance, ending of period at Jun. 30, 2023	383,311	$ 713	501,486	(1,018,034)	(54,277)	953,423
Net Income (Loss)	18,694					18,694
Foreign currency translation adjustments	(6,495)				(6,495)
Total comprehensive income	12,199
Repurchase of common stock, shares		(1,994,000)
Repurchase of common stock	(108,007)		(144)	(107,863)
Issuance of common stock pursuant to employee stock purchase plan	877		877
Issuance of common stock pursuant to employee stock purchase plan, shares		20,000
Issuance of restricted common stock pursuant to stock-based compensation plans, shares		12,000
Cancellation of restricted common stock issued pursuant to stock-based compensation plans, shares		(63,000)
Stock-based compensation expense	7,197		7,197
Purchase of capped call transactions (net of tax)	(26,353)		(26,353)
Dividends	(8,733)					(8,733)
Balance, ending of period, shares at Sep. 30, 2023		29,726,000
Balance, ending of period at Sep. 30, 2023	$ 260,491	$ 713	483,063	(1,125,897)	(60,772)	963,384
Balance, beginning of period, shares at Dec. 31, 2023	29,541,000	29,541,000
Balance, beginning of period at Dec. 31, 2023	$ 273,326	$ 713	490,947	(1,136,055)	(50,413)	968,134
Net Income (Loss)						19,467
Foreign currency translation adjustments					(4,975)
Total comprehensive income	14,492
Repurchase of common stock, shares		(344,000)
Repurchase of common stock	(18,223)	$ (2)	(8,538)	(9,683)
Issuance of common stock pursuant to employee stock purchase plan	866		866
Issuance of common stock pursuant to employee stock purchase plan, shares		20,000
Issuance of restricted common stock pursuant to stock-based compensation plans, shares		573,000
Issuance of restricted common stock pursuant to stock-based compensation plans		$ 6	(6)
Cancellation of restricted common stock issued pursuant to stock-based compensation plans, shares		(11,000)
Stock-based compensation expense	7,736		7,736
Dividends	(8,857)					(8,857)
Balance, ending of period, shares at Mar. 31, 2024		29,779,000
Balance, ending of period at Mar. 31, 2024	$ 269,340	$ 717	491,005	(1,145,738)	(55,388)	978,744
Balance, beginning of period, shares at Dec. 31, 2023	29,541,000	29,541,000
Balance, beginning of period at Dec. 31, 2023	$ 273,326	$ 713	490,947	(1,136,055)	(50,413)	968,134
Net Income (Loss)	52,384
Foreign currency translation adjustments	4,851
Total comprehensive income	$ 57,235
Balance, ending of period, shares at Sep. 30, 2024	29,292,000	29,292,000
Balance, ending of period at Sep. 30, 2024	$ 288,411	$ 717	509,294	(1,170,118)	(45,562)	994,080
Balance, beginning of period, shares at Mar. 31, 2024		29,779,000
Balance, beginning of period at Mar. 31, 2024	269,340	$ 717	491,005	(1,145,738)	(55,388)	978,744
Net Income (Loss)						13,829
Foreign currency translation adjustments					(241)
Total comprehensive income	13,588
Repurchase of common stock, shares		(228,000)
Repurchase of common stock	(10,201)		(397)	(9,804)
Issuance of common stock pursuant to employee stock purchase plan	752		752
Issuance of common stock pursuant to employee stock purchase plan, shares		20,000
Issuance of restricted common stock pursuant to stock-based compensation plans, shares		90,000
Issuance of restricted common stock pursuant to stock-based compensation plans		$ 1	(1)
Cancellation of restricted common stock issued pursuant to stock-based compensation plans		$ (1)	1
Cancellation of restricted common stock issued pursuant to stock-based compensation plans, shares		(70,000)
Stock-based compensation expense	8,635		8,635
Dividends	(8,785)					(8,785)
Balance, ending of period, shares at Jun. 30, 2024		29,591,000
Balance, ending of period at Jun. 30, 2024	273,329	$ 717	499,995	(1,155,542)	(55,629)	983,788
Net Income (Loss)	19,088					19,088
Foreign currency translation adjustments	10,067				10,067
Total comprehensive income	29,155
Repurchase of common stock, shares		(317,000)
Repurchase of common stock	(14,727)		(151)	(14,576)
Issuance of common stock pursuant to employee stock purchase plan	798		798
Issuance of common stock pursuant to employee stock purchase plan, shares		19,000
Issuance of restricted common stock pursuant to stock-based compensation plans, shares		22,000
Cancellation of restricted common stock issued pursuant to stock-based compensation plans, shares		(23,000)
Stock-based compensation expense	8,652		8,652
Dividends	$ (8,796)					(8,796)
Balance, ending of period, shares at Sep. 30, 2024	29,292,000	29,292,000
Balance, ending of period at Sep. 30, 2024	$ 288,411	$ 717	$ 509,294	$ (1,170,118)	$ (45,562)	$ 994,080