Selected Balance Sheet Data - Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Prepaid inventories	$ 2,286	$ 2,372
Prepaid expenses and other	1,843	1,299
Contract assets	1,104	290
Financed insurance premiums	2,071	2,289
Assets held for sale	523	1,850
Total prepaid expenses and other current assets	$ 7,827	$ 8,100

Amount classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

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