Income Taxes - Significant Components of Net Deferred Tax Asset and Liability (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Deferred tax asset [Abstract]
Accruals and reserves	$ 1,137	$ 498
Deferred compensation	604	191
Share-based payments	2,909	2,802
Lease liability	4,993	5,003
Section 163(j) interest limitation	370	5,647
Interest rate swap	5,964	4,147
Unrealized losses	3,720	0
Net operating loss carryforwards	10,608	7,200
Capital loss carryforwards	149,608	7,801
Deferred tax assets, gross	179,913	33,289
Valuation allowance	(152,295)	(13,147)
Total	27,618	20,142
Deferred tax liability [Abstract]
Property and equipment	(4,516)	(3,181)
Intangible assets	(14,868)	(14,651)
Right-of-use assets	(4,633)	(6,532)
Total	(24,017)	(24,364)
Net long-term deferred tax asset	$ 3,601
Net long-term deferred tax liability		$ (4,222)