Consolidated Statements of Equity Statement - USD ($) shares in Thousands, $ in Thousands	Total	Parent [Member]	Common Stock [Member]	Common Stock Including Additional Paid in Capital [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Noncontrolling Interest [Member]
Beginning balance (in shares) at Dec. 31, 2019			39,941
Beginning balance at Dec. 31, 2019	$ 800,815	$ 776,538		$ 1,357,600	$ (204,672)	$ (376,390)	$ 24,277
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	9,162	8,684				8,684	478
Other comprehensive income (loss), net of tax	(25,211)	(25,211)			(25,211)
Net stock issuance and repurchases (in shares)			235
Net stock issued and repurchased	2,247	2,247		2,247
Stock-based compensation expense	8,482	8,482		8,482
Ending balance at Mar. 31, 2020	795,495	770,740		1,368,329	(229,883)	(367,706)	24,755
Ending balance (in shares) at Mar. 31, 2020			40,176
Beginning balance (in shares) at Dec. 31, 2019			39,941
Beginning balance at Dec. 31, 2019	800,815	776,538		1,357,600	(204,672)	(376,390)	24,277
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(78,383)
Other comprehensive income (loss), net of tax	50,659
Proceeds from sale of warrants	0
Ending balance at Sep. 30, 2020	797,265	771,896		1,381,774	(154,013)	(455,865)	25,369
Ending balance (in shares) at Sep. 30, 2020			40,356
Beginning balance (in shares) at Mar. 31, 2020			40,176
Beginning balance at Mar. 31, 2020	795,495	770,740		1,368,329	(229,883)	(367,706)	24,755
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(62,487)	(62,802)				(62,802)	315
Other comprehensive income (loss), net of tax	62,056	62,056			62,056
Net stock issuance and repurchases (in shares)			58
Net stock issued and repurchased	706	706		706
Stock-based compensation expense	7,099	7,099		7,099
Ending balance at Jun. 30, 2020	802,869	777,799		1,376,134	(167,827)	(430,508)	25,070
Ending balance (in shares) at Jun. 30, 2020			40,234
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(25,058)	(25,357)				(25,357)	299
Other comprehensive income (loss), net of tax	13,814	13,814			13,814
Net stock issuance and repurchases (in shares)			122
Net stock issued and repurchased	583	583		583
Stock-based compensation expense	5,057	5,057		5,057
Ending balance at Sep. 30, 2020	$ 797,265	771,896		1,381,774	(154,013)	(455,865)	25,369
Ending balance (in shares) at Sep. 30, 2020			40,356
Beginning balance (in shares) at Dec. 31, 2020	40,444		40,444
Beginning balance at Dec. 31, 2020	$ 840,273	816,548		1,389,419	(138,526)	(434,345)	23,725
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	13,580	12,603				12,603	977
Other comprehensive income (loss), net of tax	(11,783)	(11,783)			(11,783)
Net stock issuance and repurchases (in shares)			206
Net stock issued and repurchased	2,009	2,009		2,009
Stock-based compensation expense	6,270	6,270		6,270
Stock issued related to equity offering			4,472
Stock issued related to equity offering	389,419	389,419		389,419
Proceeds from sale of warrants	45,349	45,349		45,349
Purchases of convertible note hedge contracts, net of tax	(63,576)	(63,576)		(63,576)
Registration fee	373	373		373
Ending balance at Mar. 31, 2021	$ 1,221,168	1,196,466		1,768,517	(150,309)	(421,742)	24,702
Ending balance (in shares) at Mar. 31, 2021			45,122
Beginning balance (in shares) at Dec. 31, 2020	40,444		40,444
Beginning balance at Dec. 31, 2020	$ 840,273	816,548		1,389,419	(138,526)	(434,345)	23,725
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(19,875)
Other comprehensive income (loss), net of tax	(13,213)
Proceeds from sale of warrants	45,349
Ending balance at Sep. 30, 2021	$ 1,199,826	1,173,587		1,782,060	(151,739)	(456,734)	26,239
Ending balance (in shares) at Sep. 30, 2021	45,260		45,260
Beginning balance (in shares) at Mar. 31, 2021			45,122
Beginning balance at Mar. 31, 2021	$ 1,221,168	1,196,466		1,768,517	(150,309)	(421,742)	24,702
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(32,445)	(33,123)				(33,123)	678
Other comprehensive income (loss), net of tax	5,137	5,137			5,137
Net stock issuance and repurchases (in shares)			28
Net stock issued and repurchased	458	458		458
Stock-based compensation expense	6,316	6,316		6,316
Registration fee	24	24		24
Ending balance at Jun. 30, 2021	1,200,658	1,175,278		1,775,315	(145,172)	(454,865)	25,380
Ending balance (in shares) at Jun. 30, 2021			45,150
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(1,010)	(1,869)				(1,869)	859
Other comprehensive income (loss), net of tax	(6,567)	(6,567)			(6,567)
Net stock issuance and repurchases (in shares)			110
Net stock issued and repurchased	1,080	1,080		1,080
Stock-based compensation expense	5,665	5,665		5,665
Ending balance at Sep. 30, 2021	$ 1,199,826	$ 1,173,587		$ 1,782,060	$ (151,739)	$ (456,734)	$ 26,239
Ending balance (in shares) at Sep. 30, 2021	45,260		45,260