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SECURITIES (Securities held to maturity) (Details)
$ in Thousands
Sep. 30, 2022
USD ($)
security
Debt Securities, Available-for-sale [Line Items]  
Fair Value, Less than 12 months $ 708,291
Unrealized Losses, Less than 12 months $ (49,203)
Count, Less than 12 months | security 161
Fair Value, 12 months or longer $ 0
Unrealized Losses, 12 months or longer $ 0
Count, 12 months or longer | security 0
Fair Value, Total $ 708,291
Unrealized Losses, Total $ (49,203)
Count, Total | security 161
Obligations of states and political subdivisions  
Debt Securities, Available-for-sale [Line Items]  
Fair Value, Less than 12 months $ 708,291
Unrealized Losses, Less than 12 months $ (49,203)
Count, Less than 12 months | security 161
Fair Value, 12 months or longer $ 0
Unrealized Losses, 12 months or longer $ 0
Count, 12 months or longer | security 0
Fair Value, Total $ 708,291
Unrealized Losses, Total $ (49,203)
Count, Total | security 161