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Derivative Instrument and Hedging Activities (Fair Values of Derivative Instruments on the Balance Sheet) (Details) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Derivatives, Fair Value [Line Items]    
Asset derivatives $ 51,229 $ 43,506
Liability derivatives 44,180 37,521
Derivatives Designated as Hedging Instruments [Member]    
Derivatives, Fair Value [Line Items]    
Gross notional amount 105,000 105,000
Derivatives Designated as Hedging Instruments [Member] | Other Assets [Member]    
Derivatives, Fair Value [Line Items]    
Asset derivatives 6,835 5,939
Derivatives Designated as Hedging Instruments [Member] | Other Liabilities [Member]    
Derivatives, Fair Value [Line Items]    
Liability derivatives 0 0
Derivatives Not Designated as Hedging Instruments [Member]    
Derivatives, Fair Value [Line Items]    
Gross notional amount 1,182,483 1,191,307
Derivatives Not Designated as Hedging Instruments [Member] | Other Assets [Member]    
Derivatives, Fair Value [Line Items]    
Asset derivatives 44,394 37,567
Derivatives Not Designated as Hedging Instruments [Member] | Other Liabilities [Member]    
Derivatives, Fair Value [Line Items]    
Liability derivatives 44,180 37,521
Cash Flow Hedge of Interest Rate Risk [Member] | Derivatives Designated as Hedging Instruments [Member]    
Derivatives, Fair Value [Line Items]    
Gross notional amount 105,000 105,000
Cash Flow Hedge of Interest Rate Risk [Member] | Derivatives Designated as Hedging Instruments [Member] | Other Assets [Member]    
Derivatives, Fair Value [Line Items]    
Asset derivatives 6,835 5,939
Cash Flow Hedge of Interest Rate Risk [Member] | Derivatives Designated as Hedging Instruments [Member] | Other Liabilities [Member]    
Derivatives, Fair Value [Line Items]    
Liability derivatives 0 0
Interest Rate Swap [Member] | Derivatives Not Designated as Hedging Instruments [Member]    
Derivatives, Fair Value [Line Items]    
Gross notional amount [1] 1,089,166 1,104,804
Interest Rate Swap [Member] | Derivatives Not Designated as Hedging Instruments [Member] | Other Assets [Member]    
Derivatives, Fair Value [Line Items]    
Asset derivatives [1] 44,173 37,517
Interest Rate Swap [Member] | Derivatives Not Designated as Hedging Instruments [Member] | Other Liabilities [Member]    
Derivatives, Fair Value [Line Items]    
Liability derivatives [1] 44,175 37,519
Credit Contract [Member] | Derivatives Not Designated as Hedging Instruments [Member]    
Derivatives, Fair Value [Line Items]    
Gross notional amount 75,168 81,211
Credit Contract [Member] | Derivatives Not Designated as Hedging Instruments [Member] | Other Assets [Member]    
Derivatives, Fair Value [Line Items]    
Asset derivatives 0 0
Credit Contract [Member] | Derivatives Not Designated as Hedging Instruments [Member] | Other Liabilities [Member]    
Derivatives, Fair Value [Line Items]    
Liability derivatives 0 0
Mortgage Banking [Member] | Derivatives Not Designated as Hedging Instruments [Member]    
Derivatives, Fair Value [Line Items]    
Gross notional amount 18,149 5,292
Mortgage Banking [Member] | Derivatives Not Designated as Hedging Instruments [Member] | Other Assets [Member]    
Derivatives, Fair Value [Line Items]    
Asset derivatives 221 50
Mortgage Banking [Member] | Derivatives Not Designated as Hedging Instruments [Member] | Other Liabilities [Member]    
Derivatives, Fair Value [Line Items]    
Liability derivatives $ 5 $ 2
[1] The Company was holding collateral of $50.2 million and $40.4 million against its net obligations under these contracts at March 31, 2024 and December 31, 2023, respectively.