XML 56 R46.htm IDEA: XBRL DOCUMENT
v3.25.3

SECURITIES - Gross Realized and Unrealized Gains (Losses) on Equity Securities without Readily Determinable Fair Value (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Investments, Debt and Equity Securities [Abstract] |  |  |  |
Unrealized gains (losses) on equity securities still held at the reporting date | $ 0 | $ 0 | $ 0 | $ 0
Realized gains (losses) on equity securities sold during the period | 89 | 0 | 89 | 534
Equity securities without readily determinable fair value, upward price adjustment, annual amount | $ 89 | $ 0 | $ 89 | $ 534

X
- Definition Equity Securities Without Readily Determinable Fair Values, Realized Gain (Loss) + References No definition available. + Details
Name: | tbk_EquitySecuritiesWithoutReadilyDeterminableFairValuesRealizedGainLoss
Namespace Prefix: | tbk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Equity Securities Without Readily Determinable Fair Values, Unrealized Gain (Loss) + References No definition available. + Details
Name: | tbk_EquitySecuritiesWithoutReadilyDeterminableFairValuesUnrealizedGainLoss
Namespace Prefix: | tbk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of gain from upward price adjustment on investment in equity security without readily determinable fair value. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 321 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479536/321-10-50-3 + Details
Name: | us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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