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Net Loss per Share Attributable to Common Stock - Summary of Anti-dilutive Stock Equivalents (Details) - shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from earnings per share (in shares)	26,686,190	22,175,834	12,815,593
Performance Restricted Stock Units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Restricted stock units outstanding (in shares)	335,383
Performance Restricted Stock Units \| Maximum
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Award vesting rights, percentage	200.00%
Performance Restricted Stock Units \| Chief Executive Officer
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Options granted (in shares)	150,000		150,000
Performance Restricted Stock Units \| Chief Executive Officer \| Maximum
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Options granted (in shares)			300,000
Convertible Debt \| 2023 notes
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from earnings per share (in shares)	769,623	838,821	0
Convertible Debt \| 2025 notes
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from earnings per share (in shares)	9,119,960	9,119,960	0
Convertible Debt \| 2027 notes
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from earnings per share (in shares)	6,147,900	0	0
Convertible preferred stock as if converted
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	0
Stock options outstanding
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from earnings per share (in shares)	4,019,011	5,733,738	7,792,181
Restricted Stock Units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from earnings per share (in shares)	4,589,696	4,443,315	5,023,412
Restricted Stock Units \| 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