Income Taxes - Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Current tax provision (benefit):
Federal	$ 0	$ 0	$ 0
State	57	(79)	0
Foreign	622	173	322
Deferred tax benefit:
Federal	0	0	(253)
State	0	0	0
Foreign	(900)	0	0
Income tax expense (benefit)	$ (221)	$ 94	$ 69

Amount of current federal tax expense (benefit) attributable to income (loss) from continuing operations. Includes, but is not limited to, current national tax expense (benefit) for non-US (United States of America) jurisdiction.

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