CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Treasury Stock	Retained Earnings	Accumulated Other Comprehensive Loss	Noncontrolling Interests
Balance at Dec. 31, 2019	$ 1,579,342	$ 1,256	$ 1,190,058	$ (463,704)	$ 1,016,554	$ (164,890)	$ 68
Balance, shares at Dec. 31, 2019		54,220,854
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(3,304)				(3,399)		95
Other comprehensive income (loss)	70,794					70,676	118
Stock issued under employee stock plans	16,883	$ 11	16,437	435
Stock issued under employee stock plans, shares		608,878
Share-based compensation	21,951		21,951
Repurchase of shares	(239,763)			(239,763)
Repurchase of shares, shares		(2,095,683)
Balance at Dec. 31, 2020	1,445,903	$ 1,267	1,228,446	(703,032)	1,013,155	(94,214)	281
Balance, shares at Dec. 31, 2020		52,734,049
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	70,587				70,727		(140)
Other comprehensive income (loss)	(78,466)					(78,368)	(98)
Stock issued under employee stock plans	8,724	$ 8	9,132	(416)
Stock issued under employee stock plans, shares		413,835
Share-based compensation	36,540		36,540
Repurchase of shares	(227,764)			(227,764)
Repurchase of shares, shares		(2,000,000)
Balance at Dec. 31, 2021	1,255,524	$ 1,275	1,274,118	(931,212)	1,083,882	(172,582)	43
Balance, shares at Dec. 31, 2021		51,147,884
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	230,742				230,994		(252)
Other comprehensive income (loss)	(78,375)					(78,407)	32
Adoption of ASU-2020-06 on Convertible bond	(40,690)		(74,080)		33,390
Stock issued under employee stock plans	8,056	$ 7	7,699	350
Stock issued under employee stock plans, shares		314,358
Share-based compensation	44,100		44,100
Repurchase of shares	(174,951)			(174,951)
Repurchase of shares, shares		(1,639,535)
Balance at Dec. 31, 2022	$ 1,244,406	$ 1,282	$ 1,251,837	$ (1,105,813)	$ 1,348,266	$ (250,989)	$ (177)
Balance, shares at Dec. 31, 2022		49,822,707