Leases - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Jan. 01, 2019
Leases [Abstract]
Operating lease, right-of-use asset	$ 21,600	$ 21,600	$ 52,200	$ 89,000
Impairment loss	$ 22,800
Operating lease, payments		10,400	10,800
Increase in right-of-use assets and lease liabilities, net		$ 18,900	$ 24,300
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:OtherAssets	us-gaap:OtherAssets	us-gaap:OtherAssets	us-gaap:OtherAssets
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesCurrent	us-gaap:OtherLiabilitiesCurrent	us-gaap:OtherLiabilitiesCurrent	us-gaap:OtherLiabilitiesCurrent
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilities	us-gaap:OtherLiabilities	us-gaap:OtherLiabilities	us-gaap:OtherLiabilities
Operating lease, liability	$ 49,913	$ 49,913	$ 59,000	$ 89,000
Current portion of operating lease liabilities	$ 25,004	$ 25,004	$ 29,036
Weighted average remaining lease term	2 years 9 months 18 days	2 years 9 months 18 days	3 years 3 months 18 days
Discount rate	3.30%	3.30%	3.30%