Income Taxes - Loss Before Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Domestic	$ (56,291)	$ (46,277)	$ (59,900)
International	(7,369)	(7,824)	(6,805)
Loss before income taxes	$ (63,660)	$ (54,101)	$ (66,705)

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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+ Details