Long-Term Debt and Other Financing Arrangements - Summary of Future Aggregate Maturities of Notes Payable (Details) $ in Thousands	Jun. 30, 2022 USD ($)
Debt Disclosure [Abstract]
2022 (excluding the six months ended June 30, 2022)	$ 3,085
2023	6,000
2024	2,000
Total	$ 11,085

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