Shareholders' Equity - Changes in Shareholders' Equity (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Changes in shareholders' equity that are attributable to the Company's shareholders and to non controlling interests
Beginning Balance	$ 1,199,049	$ 1,020,835	$ 1,165,088	$ 975,016
Proceeds from exercise of stock options	32		$ 81
Proceeds from exercise of stock options (shares)			13
Stock-based compensation expense	3,357	3,556	$ 8,935	9,869
Restricted stock canceled	(2)
Other adjustment		(91)		(91)
Shares withheld for net settlements of share - based awards		(17)	(3,445)	(1,302)
Issuance of common stock - ESPP	41	60	80	103
Sale of treasury shares			5,750
Net income (loss)	29,525	53,673	57,519	91,852
Other comprehensive income (loss)	369	(8,184)	(1,637)	(5,615)
Ending Balance	1,232,371	1,069,832	1,232,371	1,069,832
Common shares
Changes in shareholders' equity that are attributable to the Company's shareholders and to non controlling interests
Beginning Balance	$ 1,302	$ 1,289	$ 1,289	$ 1,273
Beginning Balance (shares)	125,955	124,011	124,061	122,472
Proceeds from exercise of stock options (shares)	5		12
Restricted stock granted	$ 1		$ 17	$ 18
Restricted stock granted (shares)	117	2	1,758	1,786
Restricted stock canceled	$ (1)
Restricted stock canceled (shares)	(9)	(14)	(26)	(40)
Shares withheld for net settlements of share - based awards			$ (4)	$ (2)
Shares withheld for net settlements of share-based awards (shares)		(3)	(383)	(229)
Issuance of common stock - ESPP	$ 1		$ 1
Issuance of common stock (ESPP) (in shares)	7	7	11	14
Sale of treasury shares (in shares)			642
Ending Balance	$ 1,303	$ 1,289	$ 1,303	$ 1,289
Ending Balance (shares)	126,075	124,003	126,075	124,003
Additional Paid-In Capital
Changes in shareholders' equity that are attributable to the Company's shareholders and to non controlling interests
Beginning Balance	$ 1,289,399	$ 1,281,268	$ 1,291,363	$ 1,276,213
Proceeds from exercise of stock options	32		81
Stock-based compensation expense	3,357	3,556	8,935	9,869
Restricted stock granted	(1)		(17)	(18)
Restricted stock canceled	(1)
Shares withheld for net settlements of share - based awards		(17)	(3,441)	(1,300)
Issuance of common stock - ESPP	40	60	79	103
Sale of treasury shares			(4,174)
Ending Balance	1,292,826	1,284,867	1,292,826	1,284,867
Accumulated Deficit/Retained Earnings
Changes in shareholders' equity that are attributable to the Company's shareholders and to non controlling interests
Beginning Balance	23,767	(137,741)	(4,236)	(175,960)
Other adjustment		(91)		(91)
Net income (loss)	29,571	53,727	57,574	91,946
Ending Balance	53,338	(84,105)	53,338	(84,105)
Accumulated Other Comprehensive Loss
Changes in shareholders' equity that are attributable to the Company's shareholders and to non controlling interests
Beginning Balance	(18,935)	(17,632)	(16,919)	(20,216)
Other comprehensive income (loss)	353	(8,207)	(1,663)	(5,623)
Ending Balance	(18,582)	(25,839)	(18,582)	(25,839)
Treasury shares
Changes in shareholders' equity that are attributable to the Company's shareholders and to non controlling interests
Beginning Balance	$ (95,175)	$ (105,099)	$ (105,099)	$ (105,099)
Beginning Balance (shares)	4,210	4,852	4,852	4,852
Sale of treasury shares			$ 9,924
Sale of treasury shares (in shares)			642
Ending Balance	$ (95,175)	$ (105,099)	$ (95,175)	$ (105,099)
Ending Balance (shares)	4,210	4,852	4,210	4,852
Noncontrolling Interests
Changes in shareholders' equity that are attributable to the Company's shareholders and to non controlling interests
Beginning Balance	$ (1,309)	$ (1,250)	$ (1,310)	$ (1,195)
Net income (loss)	(46)	(54)	(55)	(94)
Other comprehensive income (loss)	16	23	26	8
Ending Balance	$ (1,339)	$ (1,281)	$ (1,339)	$ (1,281)