Summary of Material Information about Accounting Policies - Revenue recognition (Details)	12 Months Ended
Dec. 31, 2023
Revenue recognition
Average duration of sales order	1 month
Average duration of service contracts	12 months

Represents the average duration of service contracts.

No definition available.

Name:	olk_AverageDurationOfServiceContracts
Namespace Prefix:	olk_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration