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Commitments and Contingencies, Purchase Commitments (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 | Nov. 30, 2018
Commitments and Contingencies [Abstract] |  |  |  |  |
Purchase commitment |  |  |  |  | $ 3,100
Minimum purchase commitment |  |  |  | $ 0 |
Purchases made | $ 1,353 | $ 1,990 | $ 4,809 |  |

X
- Definition Amount of purchases made under the long-term purchase commitment. + References No definition available. + Details
Name: | tinv_LongTermPurchaseCommitmentPurchases
Namespace Prefix: | tinv_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The minimum amount the entity agreed to spend under the long-term purchase commitment. + References No definition available. + Details
Name: | us-gaap_LongTermPurchaseCommitmentAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier. + References No definition available. + Details
Name: | us-gaap_PurchaseObligation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant