Long-Term Debt and Other Financing Arrangements - Summary of Future Aggregate Maturities of Notes Payable (Details) $ in Thousands	Sep. 30, 2023 USD ($)
Debt Disclosure [Abstract]
2023 (excluding the nine months ended September 30, 2023)	$ 1,749
2024	5,515
Total	$ 7,264

Long-Term Debt, Future Aggregate Maturity, Remainder Of Fiscal Year

No definition available.

Name:	owlt_LongTermDebtFutureAggregateMaturityRemainderOfFiscalYear
Namespace Prefix:	owlt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant