Stock-Based Compensation - Stock-Based Compensation Expense, Net of Forfeitures (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation expense, net of forfeitures	$ 2,921	$ 1,121	$ 3,185	$ 6,649
Equity-classified awards
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation expense, net of forfeitures	1,141	624	2,425	1,232
Liability-classified awards
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation expense, net of forfeitures	$ 1,780	$ 497	$ 760	$ 5,417