Income Taxes - Income Tax Provision (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Income Tax Expense (Benefit), Continuing Operations [Abstract]
Provision for income taxes	$ 1,623	$ 161	$ 5,577	$ 26,960
Valuation allowance	3,600	$ 26,700	3,600	26,700
Income tax expense (benefit)			2,000	$ 200
Unrecognized tax benefits	$ 0		$ 0		$ 0