Subsequent Events - Additional Information (Details) - USD ($) shares in Thousands, $ in Thousands	Oct. 08, 2020	Oct. 07, 2020	Oct. 01, 2020	Sep. 30, 2020	Dec. 31, 2019
Subsequent Event [Line Items]
Long-term Debt, Gross				$ 707,239	$ 658,083
Affiliated entity
Subsequent Event [Line Items]
Long-term Debt, Gross					$ 59,138
Convertible Promissory Notes Interest Rate 10% Due December 2021 | Convertible debt | Affiliated entity
Subsequent Event [Line Items]
Long-term Debt, Gross				96,209
Debt instrument, unamortized premium			$ 3,200	$ 3,200
Subsequent Event
Subsequent Event [Line Items]
Debt instrument, unamortized premium		$ 3,200
Subsequent Event | Convertible Promissory Notes Interest Rate 10% Due December 2021 | Convertible debt | Affiliated entity
Subsequent Event [Line Items]
Long-term Debt, Gross		$ 96,200
Accrued and unpaid interest	$ 2,100
Redemption price, percentage of principal amount redeemed	104.00%
Debt Instrument, Repurchase Amount	$ 82,200
Subsequent Event | Class A common stock
Subsequent Event [Line Items]
Conversion of notes (in shares)		12,000