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v3.25.3

REVENUE RECOGNITION (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Revenue Recognition [Abstract] |  |  |  |
Interchange income | $ 7.7 | $ 7.6 | $ 22.5 | $ 22.5
Credit card expense | 4.1 | 3.9 | 11.9 | 11.8
Spot foreign exchange income | $ 2.6 | $ 2.3 | $ 8.0 | $ 7.8

X
- Definition Gross expense related to credit cards. + References No definition available. + Details
Name: | ffbc_Creditcardexpense
Namespace Prefix: | ffbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Gross Interchange income received on credit and debit cards. + References No definition available. + Details
Name: | ffbc_Interchangeincome
Namespace Prefix: | ffbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Foreign exchange income on spot transactions + References No definition available. + Details
Name: | ffbc_SpotForeignExchangeIncome
Namespace Prefix: | ffbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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