General Company Information - Additional Information (Details)	12 Months Ended
Dec. 31, 2021 Workforce
Minimum
Disclosure Of General Company Information [Line Items]
Number of workforce operating in different regions	200

Disclosure of general company information line items.

No definition available.

Name:	gamb_DisclosureOfGeneralCompanyInformationLineItems
Namespace Prefix:	gamb_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration