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Borrowings and Borrowing Capacity - Summary of FHLB Advances and Weighted Average Interest Rates by Contractual Maturity (Details) $ in Thousands | Dec. 31, 2022 USD ($)
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Debt Disclosure [Abstract] |
2027, balance outstanding, variable rate | $ 30,000
2027, variable weighted average interest rate | 4.25%

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Balance Type: | credit
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- Definition Federal home loan bank advances maturities summary weighted average variable interest rate of amounts due year nine of balance sheet date. + References No definition available. + Details
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Namespace Prefix: | tfin_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
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