Income Taxes - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Federal statutory tax rate		21.00%	21.00%	21.00%
Valuation allowance per share (in dollars per share)	$ 0.39			$ 0.39
Goodwill impairment charges	$ 69,500		$ 0	$ 69,483
Goodwill impairment, permanent tax difference				1,200
Deferred tax assets, net of valuation allowance				$ 11,000