Condensed Consolidated Statements Of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands	Common Stock Cumulative Effect, Period of Adoption	Common Stock	Retained Earnings Cumulative Effect, Period of Adoption	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Cumulative Effect, Period of Adoption	Total
Balance, beginning of period (Accounting Standards Update 2020-06) at Dec. 31, 2020	$ (41,456)		$ 6,682			$ (34,774)
Balance, beginning of period at Dec. 31, 2020		$ 1,327,592		$ 464,524	$ (51,620)		$ 1,740,496
Balance, beginning of period (in shares) at Dec. 31, 2020		150,341
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)				(16,587)			(16,587)
Foreign currency translation adjustments					6,969		6,969
Accretion of redeemable noncontrolling interests				1,489			1,489
Activity in company stock plans, net and other		$ (1,314)					(1,314)
Activity in company stock plans, net and other (in shares)		446
Share-based compensation		$ 3,781					3,781
Balance, end of period at Jun. 30, 2021		$ 1,288,603		456,108	(44,651)		1,700,060
Balance, end of period (in shares) at Jun. 30, 2021		150,787
Balance, beginning of period at Dec. 31, 2020							3,855
Increase (Decrease) in Redeemable Noncontrolling Interests [Roll Forward]
Net income (loss)							(146)
Foreign currency translation adjustments related to redeemable noncontrolling interests							48
Accretion of redeemable noncontrolling interests							(1,489)
Acquisition of redeemable noncontrolling interests							(2,268)
Balance, beginning of period at Mar. 31, 2021		$ 1,286,380		468,087	(47,007)		1,707,460
Balance, beginning of period (in shares) at Mar. 31, 2021		150,715
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)				(13,709)			(13,709)
Foreign currency translation adjustments					2,356		2,356
Accretion of redeemable noncontrolling interests				1,730			1,730
Activity in company stock plans, net and other		$ 286					286
Activity in company stock plans, net and other (in shares)		72
Share-based compensation		$ 1,937					1,937
Balance, end of period at Jun. 30, 2021		$ 1,288,603		456,108	(44,651)		1,700,060
Balance, end of period (in shares) at Jun. 30, 2021		150,787
Balance, beginning of period at Mar. 31, 2021							3,960
Increase (Decrease) in Redeemable Noncontrolling Interests [Roll Forward]
Net income (loss)							26
Foreign currency translation adjustments related to redeemable noncontrolling interests							12
Accretion of redeemable noncontrolling interests							(1,730)
Acquisition of redeemable noncontrolling interests							(2,268)
Balance, beginning of period at Dec. 31, 2021		$ 1,292,479		411,072	(56,082)		1,647,469
Balance, beginning of period (in shares) at Dec. 31, 2021		151,124
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)				(71,730)			(71,730)
Foreign currency translation adjustments					(46,486)		(46,486)
Activity in company stock plans, net and other		$ (947)					(947)
Activity in company stock plans, net and other (in shares)		590
Share-based compensation		$ 3,484					3,484
Balance, end of period at Jun. 30, 2022		$ 1,295,016		339,342	(102,568)		1,531,790
Balance, end of period (in shares) at Jun. 30, 2022		151,714
Balance, beginning of period at Mar. 31, 2022		$ 1,292,935		369,041	(69,230)		1,592,746
Balance, beginning of period (in shares) at Mar. 31, 2022		151,637
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)				(29,699)			(29,699)
Foreign currency translation adjustments					(33,338)		(33,338)
Activity in company stock plans, net and other		$ 231					231
Activity in company stock plans, net and other (in shares)		77
Share-based compensation		$ 1,850					1,850
Balance, end of period at Jun. 30, 2022		$ 1,295,016		$ 339,342	$ (102,568)		$ 1,531,790
Balance, end of period (in shares) at Jun. 30, 2022		151,714