Convertible Debt and Notes Payable - Convertible Debt (Details) - USD ($)		3 Months Ended	12 Months Ended
	Jun. 24, 2021	Dec. 31, 2020	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 14, 2017
Debt and Capital Lease Obligations [Line Items]
Gain/(loss) on debt extinguishment			$ 0	$ (4,538,000)	$ 2,719,000
Amortization of debt discount (premium)			$ 309,000	6,727,000	4,490,000
2022 convertible note | Convertible Debt
Debt and Capital Lease Obligations [Line Items]
Debt Instrument, Face Amount						$ 135,000,000
Interest rate						3.00%
Debt Instrument, Convertible, Conversion Price						$ 17.375
Unamortized discount	$ 5,100,000					$ 23,400,000
Debt Instrument, Repurchased Face Amount	$ 88,100,000	$ 46,900,000			46,900,000
Extinguishment of Debt, Amount		70,500,000
Write off of pro rate unamortized discount while extinguishing debt		3,600,000
Write off of Deferred Debt Issuance Cost		400,000
Equity portion of convertible note extinguishment		29,600,000
Gain/(loss) on debt extinguishment		$ 2,700,000
Debt instrument, redemption price, percentage	100.00%
Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger	33.35%
Debt Issuance Costs, Net	$ 500,000
Amortization of debt discount (premium)				6,700,000	4,600,000
Debt Instrument, Interest Rate, Effective Percentage						7.13%
Debt Issuance Costs, Gross						$ 2,200,000
Interest Expense				$ 1,200,000	$ 4,000,000
2022 convertible note | Convertible Debt | Common Stock Class A
Debt and Capital Lease Obligations [Line Items]
Share settlement of convertible notes (in shares)	2,938,841