Commitments and Contingencies (Details) $ in Millions	6 Months Ended
Jun. 30, 2026 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Significant Change In Legal And Regulatory Proceedings	$ 0.0

Represents the amount of significant change in legal and regulatory proceedings during the reporting period.

No definition available.

Name:	opln_SignificantChangeInLegalAndRegulatoryProceedings
Namespace Prefix:	opln_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration