Debt and Other Financing Arrangements - Summary of Future Aggregate Maturities of Notes Payable (Details) $ in Thousands	Sep. 30, 2025 USD ($)
Debt Disclosure [Abstract]
Remaining three months of 2025	$ 722
2026	3,508
2027	3,550
2028	517
Total	$ 8,297

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