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Net (Loss) Income per Share Attributable to Common Stock - Summary of Anti-dilutive Stock Equivalents (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Jun. 01, 2019	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from earnings per share (in shares)		26,029,681	6,745,398	26,029,681	16,732,739
Performance Restricted Stock Units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Restricted stock units issued and outstanding or deferred (in shares)		331,759		331,759
Performance Restricted Stock Units \| Maximum
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Percentage of target amount				200.00%
Chief Executive Officer \| Performance Restricted Stock Units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Options granted (in shares)	150,000			150,000
Chief Executive Officer \| Performance Restricted Stock Units \| Maximum
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Options granted (in shares)	300,000
Convertible Preferred Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from earnings per share (in shares)		2,040,000	2,040,000	2,040,000	2,040,000
Share-based Payment Arrangement, Option
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from earnings per share (in shares)		4,374,257	0	4,374,257	5,924,213
Restricted Stock Units (RSUs)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from earnings per share (in shares)		3,424,733	0	3,424,733	3,932,539
Restricted Stock Units (RSUs) \| Non-employee Directors
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from earnings per share (in shares)				27,729
Employee stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from earnings per share (in shares)		153,208	0	153,208	130,589
1.75% Convertible Senior Notes due 2023
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from earnings per share (in shares)		769,623	4,705,398	769,623	4,705,398
Debt conversion				$ 226
0% Convertible Senior Notes due 2025
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from earnings per share (in shares)		9,119,960	0	9,119,960	0
0.5% Convertible Senior Notes Due 2027
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from earnings per share (in shares)		6,147,900	0	6,147,900	0