Equity - Statement of Stockholders' Equity (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022
Increase (Decrease) in Stockholders' Equity
Balance at the beginning of the period	$ 612,600	$ 585,559	$ 577,824	$ 420,737	$ 403,570	$ 437,628	$ 577,824	$ 437,628
Net Income (Loss)	24,574	(85,320)	8,741	15,041	9,655	13,330	(52,005)	38,026
Other comprehensive income (loss), net of tax	133	(39)	476	(170)	(272)	(822)
Share-based compensation expense	7,420	7,932	7,027	6,210	6,278	4,481
Partial extinguishment of 2025 and 2027 Notes		102,140
Net issuance under employee stock plans	(247)	2,328	(8,509)	(703)	1,506	(6,787)
Balance at the end of the period	644,480	612,600	585,559	441,115	420,737	403,570	644,480	441,115
Cumulative Effect, Period of Adoption, Adjustment
Increase (Decrease) in Stockholders' Equity
Balance at the beginning of the period						(44,260)		(44,260)
Common Stock
Increase (Decrease) in Stockholders' Equity
Balance at the beginning of the period	$ 564	$ 517	$ 517	$ 515	$ 513	$ 507	$ 517	$ 507
Balance (in shares)	56,338	51,693	51,660	51,425	51,243	50,653	51,660	50,653
Partial extinguishment of 2025 and 2027 Notes		$ 45
Partial extinguishment of 2025 and 2027 Notes (in shares)		4,460
Net issuance under employee stock plans		$ 2			$ 2	$ 6
Net issuance under employee stock plans (in shares)	(1)	185	33	(5)	182	590
Balance at the end of the period	$ 564	$ 564	$ 517	$ 515	$ 515	$ 513	$ 564	$ 515
Balance (in shares)	56,337	56,338	51,693	51,420	51,425	51,243	56,337	51,420
Additional Paid-in Capital
Increase (Decrease) in Stockholders' Equity
Balance at the beginning of the period	$ 1,189,051	$ 1,076,698	$ 1,078,180	$ 1,065,590	$ 1,057,808	$ 1,116,921	$ 1,078,180	$ 1,116,921
Share-based compensation expense	7,420	7,932	7,027	6,210	6,278	4,481
Partial extinguishment of 2025 and 2027 Notes		102,095
Net issuance under employee stock plans	(247)	2,326	(8,509)	(703)	1,504	(6,793)
Balance at the end of the period	1,196,224	1,189,051	1,076,698	1,071,097	1,065,590	1,057,808	1,196,224	1,071,097
Additional Paid-in Capital | Cumulative Effect, Period of Adoption, Adjustment
Increase (Decrease) in Stockholders' Equity
Balance at the beginning of the period						(56,801)		(56,801)
Accumulated Deficit
Increase (Decrease) in Stockholders' Equity
Balance at the beginning of the period	(578,380)	(493,060)	(501,801)	(645,757)	(655,412)	(681,283)	(501,801)	(681,283)
Net Income (Loss)	24,574	(85,320)	8,741	15,041	9,655	13,330
Balance at the end of the period	(553,806)	(578,380)	(493,060)	(630,716)	(645,757)	(655,412)	(553,806)	(630,716)
Accumulated Deficit | Cumulative Effect, Period of Adoption, Adjustment
Increase (Decrease) in Stockholders' Equity
Balance at the beginning of the period						12,541		12,541
Accumulated Other Comprehensive Income
Increase (Decrease) in Stockholders' Equity
Balance at the beginning of the period	1,365	1,404	928	389	661	1,483	928	1,483
Other comprehensive income (loss), net of tax	133	(39)	476	(170)	(272)	(822)
Balance at the end of the period	$ 1,498	$ 1,365	$ 1,404	$ 219	$ 389	$ 661	$ 1,498	$ 219