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v3.24.3

Derivative and Hedging Activities - Additional Information (Details) | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Sep. 30, 2024 USD ($) | Sep. 30, 2023 USD ($) | Dec. 31, 2022 USD ($) Interest | Jun. 30, 2022 USD ($) Interest | Sep. 30, 2024 USD ($) | Sep. 30, 2023 USD ($) | Dec. 31, 2022 USD ($) Interest | Dec. 31, 2023 USD ($) | Mar. 31, 2023 USD ($)
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Cash collateral pledged | $ 1,400,000 |  |  |  | $ 1,400,000 |  |  | $ 0 |
Pay Floating Swap Agreement [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative, Number of Instruments Held, Total | Interest |  |  |  | 2 |  |  |  |  |
Derivative, notional amount |  |  |  | $ 200,000,000 |  |  |  |  |
Derivative, Fixed Coupon Rate |  |  |  | 2.41% |  |  |  |  |
Derivative instrument cash payment |  |  |  |  |  |  |  |  | $ 4,200,000
Pay Fixed Swap Agreement [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative, Number of Instruments Held, Total | Interest |  |  |  | 1 |  |  |  |  |
Derivative, notional amount |  |  | $ 49,100,000 | $ 200,000,000 |  |  | $ 49,100,000 |  |
Derivative, Fixed Coupon Rate |  |  |  | 2.75% |  |  |  |  |
Derivative, Term of Contract (Year) |  |  |  | 8 years |  |  | 9 years |  |
Pay Fixed Swap Agreement [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Interest Expense [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative Instruments, Net settlements received | 1,300,000 |  |  |  | 2,300,000 |  |  |  |
Pay Fixed Swap Agreement [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Interest Income [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative Instruments, Net settlements received | 1,000,000 | $ 959,000,000 |  |  | 3,000,000 | $ 2,300,000 |  |  |
Pay Fixed Swap Agreement [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative, Basis Spread on Variable Rate |  |  | 3.403% |  |  |  | 3.403% |  |
Pay Fixed Swap Agreement [Member] | Designated as Hedging Instrument [Member] | Fair Value Hedging [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative, Number of Instruments Held, Total | Interest |  |  | 4 |  |  |  | 4 |  |
Derivative, notional amount |  |  | $ 201,000,000 |  |  |  | $ 201,000,000 |  |
Pay Fixed Swap Agreements Expiring in 2032 [Member] | Designated as Hedging Instrument [Member] | Fair Value Hedging [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative, notional amount |  |  | $ 101,900,000 |  |  |  | $ 101,900,000 |  |
Derivative, Term of Contract (Year) |  |  | 10 years |  |  |  |  |  |
Pay Fixed Swap Agreements Expiring in 2032 [Member] | Designated as Hedging Instrument [Member] | Fair Value Hedging [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative, Basis Spread on Variable Rate |  |  | 3.39% |  |  |  | 3.39% |  |
The 3.4015 Percent Pay Fixed Swap Agreement [Member] | Designated as Hedging Instrument [Member] | Fair Value Hedging [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative, notional amount |  |  | $ 50,000,000 |  |  |  | $ 50,000,000 |  |
Derivative, Term of Contract (Year) |  |  | 9 years |  |  |  |  |  |
The 3.4015 Percent Pay Fixed Swap Agreement [Member] | Designated as Hedging Instrument [Member] | Fair Value Hedging [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative, Basis Spread on Variable Rate |  |  | 3.4015% |  |  |  | 3.4015% |  |
Interest rate swaps |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative, notional amount | 42,600,000 |  |  |  | 42,600,000 |  |  | 0 |
Interest rate swaps | Not designated as hedges |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Fair Value | 1,300 |  |  |  | 1,300 |  |  | 0 |
Derivative liabilities | $ 1,300 |  |  |  | $ 1,300 |  |  | $ 0 |

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