CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Capital in Excess of Par Value	Accum. Deficit	Accum. Other Comp. Loss	Non-controlling Interest
Beginning balance (in shares) at Dec. 31, 2021		202,866,000
Beginning balance at Dec. 31, 2021	$ 1,754,307	$ 2,029	$ 2,315,399	$ (525,158)	$ (21,625)	$ (16,338)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	38,173			36,702		1,471
Other comprehensive (loss) income	(2,795)				(2,795)
Stock-based compensation (in shares)		290,000
Stock-based compensation	4,728	$ 3	4,725
Stock options exercised (in shares)		189,000
Stock options exercised	1,055	$ 1	1,054
Taxes withheld on issuance of stock-based awards	(2,639)		(2,639)
Dividends declared to common stockholders	(15,465)			(15,465)
Cumulative translation adjustments	208					208
Ending balance (in shares) at Mar. 31, 2022		203,345,000
Ending balance at Mar. 31, 2022	1,777,572	$ 2,033	2,318,539	(503,921)	(24,420)	(14,659)
Beginning balance (in shares) at Dec. 31, 2021		202,866,000
Beginning balance at Dec. 31, 2021	1,754,307	$ 2,029	2,315,399	(525,158)	(21,625)	(16,338)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	90,294
Other comprehensive (loss) income	(15,648)
Ending balance (in shares) at Sep. 30, 2022		199,340,000
Ending balance at Sep. 30, 2022	1,694,720	$ 1,993	2,276,094	(530,128)	(37,273)	(15,966)
Beginning balance (in shares) at Mar. 31, 2022		203,345,000
Beginning balance at Mar. 31, 2022	1,777,572	$ 2,033	2,318,539	(503,921)	(24,420)	(14,659)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	28,896			27,342		1,554
Other comprehensive (loss) income	17,836				17,836
Stock-based compensation (in shares)		64,000
Stock-based compensation	5,071	$ 1	5,070
Stock options exercised (in shares)		312,000
Stock options exercised	2,090	$ 3	2,087
Taxes withheld on issuance of stock-based awards	(739)		(739)
Dividends declared to common stockholders	(15,494)			(15,494)
Repurchase and cancellation of common stock (in shares)		(790,000)
Repurchase and cancellation of common stock	(20,016)	$ (8)	(8,992)	(11,016)
Distributions to noncontrolling interest	(2,369)					(2,369)
Cumulative translation adjustments	8					8
Ending balance (in shares) at Jun. 30, 2022		202,931,000
Ending balance at Jun. 30, 2022	1,792,855	$ 2,029	2,315,965	(503,089)	(6,584)	(15,466)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	23,225			23,068		157
Other comprehensive (loss) income	(30,689)				(30,689)
Stock-based compensation (in shares)		20,000
Stock-based compensation	5,009		5,009
Stock options exercised (in shares)		87,000
Stock options exercised	564	$ 1	563
Taxes withheld on issuance of stock-based awards	(198)		(198)
Dividends declared to common stockholders	(15,315)			(15,315)
Repurchase and cancellation of common stock (in shares)		(3,698,000)
Repurchase and cancellation of common stock	(80,074)	$ (37)	(45,245)	(34,792)
Distributions to noncontrolling interest	(647)					(647)
Cumulative translation adjustments	(10)					(10)
Ending balance (in shares) at Sep. 30, 2022		199,340,000
Ending balance at Sep. 30, 2022	$ 1,694,720	$ 1,993	2,276,094	(530,128)	(37,273)	(15,966)
Beginning balance (in shares) at Dec. 31, 2022	198,500,000	198,466,000
Beginning balance at Dec. 31, 2022	$ 1,677,215	$ 1,985	2,249,698	(527,603)	(29,530)	(17,335)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	63,144			63,532		(388)
Other comprehensive (loss) income	(15,312)				(15,312)
Stock-based compensation (in shares)		327,000
Stock-based compensation	5,234	$ 3	5,231
Stock options exercised (in shares)		481,000
Stock options exercised	3,014	$ 5	3,009
Taxes withheld on issuance of stock-based awards	(5,100)		(5,100)
Dividends declared to common stockholders	(16,784)			(16,784)
Repurchase and cancellation of common stock (in shares)		(1,302,000)
Repurchase and cancellation of common stock	(40,427)	$ (13)	(14,811)	(25,603)
Distributions to noncontrolling interest	(823)					(823)
Cumulative translation adjustments	8					8
Ending balance (in shares) at Mar. 31, 2023		197,972,000
Ending balance at Mar. 31, 2023	$ 1,670,169	$ 1,980	2,238,027	(506,458)	(44,842)	(18,538)
Beginning balance (in shares) at Dec. 31, 2022	198,500,000	198,466,000
Beginning balance at Dec. 31, 2022	$ 1,677,215	$ 1,985	2,249,698	(527,603)	(29,530)	(17,335)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	240,562
Other comprehensive (loss) income	$ (13,084)
Repurchase and cancellation of common stock (in shares)	(5,069,102)
Repurchase and cancellation of common stock	$ (159,700)
Ending balance (in shares) at Sep. 30, 2023	195,000,000.0	194,986,000
Ending balance at Sep. 30, 2023	$ 1,706,128	$ 1,950	2,204,974	(442,831)	(42,614)	(15,351)
Beginning balance (in shares) at Mar. 31, 2023		197,972,000
Beginning balance at Mar. 31, 2023	1,670,169	$ 1,980	2,238,027	(506,458)	(44,842)	(18,538)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	96,626			95,797		829
Other comprehensive (loss) income	9,149				9,149
Stock-based compensation (in shares)		180,000
Stock-based compensation	6,341	$ 2	6,339
Stock options exercised (in shares)		27,000
Stock options exercised	24		24
Taxes withheld on issuance of stock-based awards	(2,039)		(2,039)
Dividends declared to common stockholders	(16,758)			(16,758)
Repurchase and cancellation of common stock (in shares)		(1,883,000)
Repurchase and cancellation of common stock	(51,190)	$ (19)	(21,442)	(29,729)
Ending balance (in shares) at Jun. 30, 2023		196,296,000
Ending balance at Jun. 30, 2023	1,712,322	$ 1,963	2,220,909	(457,148)	(35,693)	(17,709)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	80,792			77,711		3,081
Other comprehensive (loss) income	(6,921)				(6,921)
Stock-based compensation (in shares)		129,000
Stock-based compensation	6,089	$ 1	6,088
Stock options exercised (in shares)		444,000
Stock options exercised	2,759	$ 5	2,754
Taxes withheld on issuance of stock-based awards	(2,593)		(2,593)
Dividends declared to common stockholders	$ (16,718)			(16,718)
Repurchase and cancellation of common stock (in shares)	(1,883,123)	(1,883,000)
Repurchase and cancellation of common stock	$ (68,113)	$ (19)	(21,418)	(46,676)
Distributions to noncontrolling interest	(1,482)		(766)			(716)
Cumulative translation adjustments	$ (7)					(7)
Ending balance (in shares) at Sep. 30, 2023	195,000,000.0	194,986,000
Ending balance at Sep. 30, 2023	$ 1,706,128	$ 1,950	$ 2,204,974	$ (442,831)	$ (42,614)	$ (15,351)