Income Taxes - Valuation Allowance for Deferred Tax Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Valuation allowance as of beginning of year	$ 64,570	$ 43,966
Additions charged to provision for income taxes	17,988	20,320
Additions charged to equity	0	332
Currency translation and other	0	(48)
Valuation allowance as of end of year	$ 82,558	$ 64,570