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 (loss)	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)	34,882
Foreign currency translation adjustments	4,552
Total comprehensive income (loss)	39,434
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
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					13,954
Foreign currency translation adjustments	1,709				1,709
Total comprehensive income (loss)	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
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 (loss)	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)	33,296
Foreign currency translation adjustments	(5,216)
Total comprehensive income (loss)	$ 28,080
Balance, ending of period, shares at Jun. 30, 2024	29,591,000	29,591,000
Balance, ending of period at Jun. 30, 2024	$ 273,329	$ 717	499,995	(1,155,542)	(55,629)	983,788
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					13,829
Foreign currency translation adjustments	(241)				(241)
Total comprehensive income (loss)	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	29,591,000
Balance, ending of period at Jun. 30, 2024	$ 273,329	$ 717	$ 499,995	$ (1,155,542)	$ (55,629)	$ 983,788