Stock-Based Compensation - Stock-Based Compensation Expense, Net of Forfeitures (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation expense, net of forfeitures	$ 1,533	$ 67	$ 4,717	$ 6,715
Equity-classified awards
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation expense, net of forfeitures	930	616	3,354	1,847
Liability-classified awards
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation expense, net of forfeitures	$ 603	$ (549)	$ 1,363	$ 4,868