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 2016-02) at Dec. 31, 2018			$ 4,560			$ 4,560
Balance, beginning of period at Dec. 31, 2018		$ 1,308,709		$ 383,034	$ (73,964)		$ 1,617,779
Balance, beginning of period (in shares) at Dec. 31, 2018		148,203
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)				57,919			57,919
Foreign currency translation adjustments					5,400		5,400
Unrealized gain on hedges, net of tax					3,824		3,824
Accretion of redeemable noncontrolling interests				(143)			(143)
Activity in company stock plans, net and other		$ (1,032)					(1,032)
Activity in company stock plans, net and other (in shares)		685
Share-based compensation		$ 11,284					11,284
Balance, end of period (Accounting Standards Update 2016-13) at Dec. 31, 2019			(620)			(620)
Balance, end of period at Dec. 31, 2019		$ 1,318,961		445,370	(64,740)		1,699,591
Balance, end of period (in shares) at Dec. 31, 2019		148,888
Increase (Decrease) in Redeemable Noncontrolling Interests [Roll Forward]
Net income (loss)							(222)
Foreign currency translation adjustments related to redeemable noncontrolling interests							138
Issuance of redeemable noncontrolling interests							3,396
Accretion of redeemable noncontrolling interests							143
Balance, end of period at Dec. 31, 2019							3,455
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)				22,174			22,174
Foreign currency translation adjustments					12,835		12,835
Unrealized gain on hedges, net of tax					285		285
Accretion of redeemable noncontrolling interests				(2,400)			(2,400)
Equity component of convertible senior notes		$ 33,336					33,336
Re-acquisition of equity component of convertible senior notes		(18,006)					(18,006)
Capped call transactions		(10,625)					(10,625)
Activity in company stock plans, net and other		$ (4,345)					(4,345)
Activity in company stock plans, net and other (in shares)		1,453
Share-based compensation		$ 8,271					8,271
Balance, end of period (Accounting Standards Update 2020-06) at Dec. 31, 2020	$ (41,456)		$ 6,682			$ (34,774)
Balance, end of period at Dec. 31, 2020		$ 1,327,592		464,524	(51,620)		1,740,496
Balance, end of period (in shares) at Dec. 31, 2020		150,341
Increase (Decrease) in Redeemable Noncontrolling Interests [Roll Forward]
Net income (loss)							(2,090)
Foreign currency translation adjustments related to redeemable noncontrolling interests							90
Accretion of redeemable noncontrolling interests							2,400
Balance, end of period at Dec. 31, 2020							3,855
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)				(61,538)			(61,538)
Foreign currency translation adjustments					(4,462)		(4,462)
Accretion of redeemable noncontrolling interests							(241)
Accretion of redeemable noncontrolling interests				1,404			1,404
Activity in company stock plans, net and other		$ (1,128)					(1,128)
Activity in company stock plans, net and other (in shares)		783
Share-based compensation		$ 7,471					7,471
Balance, end of period at Dec. 31, 2021		$ 1,292,479		$ 411,072	$ (56,082)		1,647,469
Balance, end of period (in shares) at Dec. 31, 2021		151,124
Increase (Decrease) in Redeemable Noncontrolling Interests [Roll Forward]
Net income (loss)							(146)
Foreign currency translation adjustments related to redeemable noncontrolling interests							50
Accretion of redeemable noncontrolling interests							(1,404)
Acquisition of redeemable noncontrolling interests							$ (2,355)