Income Taxes - Components of (Loss) Income before (Provision) Benefit for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
United States	$ (158,552)	$ (173,398)
Foreign	120	2,066
Loss from continuing operations before income taxes	$ (158,432)	$ (171,332)

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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