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Related Parties (Q3) (Details) $ in Thousands	3 Months Ended		7 Months Ended	9 Months Ended		12 Months Ended
	Sep. 30, 2022 USD ($) Individual	Sep. 30, 2021 USD ($) Individual	Dec. 31, 2020 USD ($)	Sep. 30, 2022 USD ($) Individual	Sep. 30, 2021 USD ($) Individual	Dec. 31, 2021 USD ($) Individual
Related Party Transaction [Abstract]
Advisor fees and out-of-pocket expenses | $	$ 175	$ 262	$ 389	$ 606	$ 644	$ 913
Number of individuals | Individual	2	2		2	2	2

X

- Definition

Represents the number of individuals who hold ownership interest to related parties.

+ References

No definition available.

+ Details

Name:	tinv_NumberOfIndividualsWhoHoldOwnershipInterestToRelatedParties
Namespace Prefix:	tinv_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Amount of expenses related to paid advisor fees and out-of-pocket expenses.

+ References

No definition available.

+ Details

Name:	tinv_PaidAdvisorFeesAndOutOfPocketExpensesToRelatedParties
Namespace Prefix:	tinv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	tinv_RelatedPartyTransactionDisclosuresAbstract
Namespace Prefix:	tinv_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration