CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Capital Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Loss
Balance, beginning of period at Dec. 31, 2021		$ 18,730	$ 163,583	$ 981,825	$ (45,243)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued for vested restricted stock units, net of shares withheld for taxes		67	(10,565)
Shares issued for employee stock purchase plan		6	944
Equity compensation expense			3,202
Net income (loss)	$ 16,600			16,600
Other comprehensive income (loss)	(11,671)				(11,671)
Balance, end of period at Mar. 31, 2022	1,117,478	18,803	157,164	998,425	(56,914)
Balance, beginning of period at Dec. 31, 2022	1,172,466	18,574	140,702	1,098,454	(85,264)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued for vested restricted stock units, net of shares withheld for taxes		35	(2,541)
Shares issued for employee stock purchase plan		0	0
Equity compensation expense			2,053
Net income (loss)	(3,505)			(3,505)
Other comprehensive income (loss)	9,750				9,750
Balance, end of period at Mar. 31, 2023	$ 1,178,258	$ 18,609	$ 140,214	$ 1,094,949	$ (75,514)