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Employee Benefit Plan (FY) (Details) - USD ($) $ in Thousands | 5 Months Ended | 7 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 10, 2020 | Dec. 31, 2020 | Dec. 31, 2021 | Dec. 31, 2019
401(k) Retirement Plan [Member] |  |  |  |
Employee Benefit Plans [Abstract] |  |  |  |
Matching contributions | $ 406 | $ 559 | $ 967 | $ 528

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- References No definition available. + Details
Name: | tinv_EmployeeBenefitPlansAbstract
Namespace Prefix: | tinv_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount of discretionary contributions made by an employer to a defined contribution plan. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
Name: | us-gaap_RetirementPlanNameAxis=tinv_FourZeroOneKPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |