Income Taxes - Significant Components of Net Deferred Tax Asset and Liability (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Deferred tax asset [Abstract]
Accruals and reserves	$ 1,913	$ 769
Deferred compensation	787	496
Share-based payments	5,035	2,111
Lease liability	9,262	0
Section 163(j) interest limitation	5,647	0
Interest rate swap	4,147	0
Net operating loss carryforwards	9,301	9,430
Capital loss carryforwards	7,844	7,620
Tax credits	0	6,437
Deferred tax assets, gross	43,936	26,863
Valuation allowance	(14,435)	(10,457)
Total	29,501	16,406
Deferred tax liability [Abstract]
Property and equipment	(8,161)	(2,600)
Intangible assets	(170,894)	(14,125)
Right-of-use assets	(10,779)	0
Prepaid expenses	(513)	0
Total	(190,347)	(16,725)
Net long-term deferred tax liability	$ (160,846)	$ (319)