Income Taxes - Components of Provision for (Benefit from) Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Current provision for income taxes:
State	$ 0	$ 4	$ 2
Foreign	12	42	13
Total current provision for income taxes	$ 12	$ 46	$ 15

Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.

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Name:	us-gaap_CurrentIncomeTaxExpenseBenefit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration