FAIR VALUE MEASUREMENTS, Initial Measurement (Details)	Sep. 17, 2020 shares
Class A Common Stock [Member]
Initial Measurement [Abstract]
Number of securities called by each unit (in shares)	1

The number of securities into which each unit may be converted. For example, but not limited to, each unit may be converted into two shares of common stock.

No definition available.

Name:	owlt_UnitsNumberOfSecuritiesCalledByUnits
Namespace Prefix:	owlt_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant