Long-Term Debt and Other Financing Arrangements - Summary of Future Aggregate Maturities of Notes Payable (Details) $ in Thousands	Mar. 31, 2023 USD ($)
Debt Disclosure [Abstract]
2023 (excluding the three months ended March 31, 2023)	$ 3,298
2024	5,000
Total	$ 8,298

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