Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Deferred tax assets:
Net operating loss and other carryforwards	$ 19,513	$ 28,393
Tax credit carryforwards	4,222	2,801
Accrued expenses	10,702	12,548
Allowance for bad debt	1,445	2,116
Share-based compensation expense	3,885	3,545
Operating lease liabilities	16,756	21,771
Basis difference in fixed assets	14,642	0
Deferred revenue	2,994	4,331
State taxes	4,447	3,771
Other	3,920	4,351
Deferred tax assets, gross	82,526	83,627
Less: valuation allowance	(1,699)	(1,812)	$ (8,262)	$ (563)
Total deferred tax assets	80,827	81,815
Deferred tax liabilities:
Basis difference in property and equipment	0	(8,337)
Operating lease right-of-use assets	(14,008)	(16,696)
Basis difference in intangible assets	(101,797)	(117,244)
Unrealized gains on investments	(24,123)	(11,291)
Prepaid insurance	(2,744)	(3,121)
Convertible debt	0	(21,972)
Other	(8,639)	(6,219)
Total deferred tax liabilities	(151,311)	(184,880)
Net deferred tax liabilities	$ (70,484)	$ (103,065)