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Summary of Significant Accounting Policies - Recently Issued Accounting Pronouncements (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Jan. 01, 2022	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Stockholders' equity attributable to parent		$ (852,798)	$ (810,468)	$ (852,798)	$ (810,468)	$ (841,434)	$ (828,446)	$ (815,851)	$ (785,579)	$ (754,444)	$ (744,858)
Convertible notes (in shares)		0	0	6,783,936	0
Convertible Debt
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Long-term debt		$ 401,438		$ 401,438				379,252
Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Stockholders' equity attributable to parent		(455,764)	$ (377,480)	(455,764)	$ (377,480)	(454,015)	(446,150)	(379,922)	(355,918)	(332,192)	(326,498)
Additional Paid-in Capital
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Stockholders' equity attributable to parent		$ (401,026)	$ (428,726)	$ (401,026)	$ (428,726)	$ (389,586)	$ (383,016)	(434,337)	$ (424,175)	$ (415,950)	$ (409,332)
Cumulative effect of adoption of ASU 2020-06
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Stockholders' equity attributable to parent								15,600
Cumulative effect of adoption of ASU 2020-06 \| Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Stockholders' equity attributable to parent								(40,612)
Cumulative effect of adoption of ASU 2020-06 \| Additional Paid-in Capital
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Stockholders' equity attributable to parent								$ 56,212
Accounting Standards Update 2020-06
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Long-term debt	$ 20,600
Deferred tax liabilities, net	$ 5,000
Accounting Standards Update 2020-06 \| Convertible Debt
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Convertible notes (in shares)	6,800,000			6,800,000
Accounting Standards Update 2020-06 \| Cumulative effect of adoption of ASU 2020-06 \| Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Stockholders' equity attributable to parent	$ (40,600)
Accounting Standards Update 2020-06 \| Cumulative effect of adoption of ASU 2020-06 \| Additional Paid-in Capital
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Stockholders' equity attributable to parent	$ 56,200