Income Taxes - Components of Deferred Tax Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Deferred tax assets:
Amortization and depreciation	$ 64,111	$ 61,098
Net operating loss carryforwards	86,547	74,989
Tax credits	14,411	13,827
Stock-based compensation	5,244	4,054
Other	7,486	3,867
Gross deferred tax assets	177,799	157,835
Valuation allowance	(175,670)	(155,141)
Deferred tax assets net of valuation allowance	2,129	2,694
Deferred tax liabilities:
Right-of-use asset	(2,129)	(2,689)
Other	0	(5)
Net deferred tax assets	$ 0	$ 0