Derivative Financial Instruments (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Jan. 31, 2023	Dec. 31, 2022
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative Liability, Securities Sold under Agreements to Repurchase, Securities Loaned, Not Offset, Policy Election Deduction		$ 0		$ 0
Securities Sold under Agreements to Repurchase [Abstract]
Gross Amounts Recognized		133,312		270,773
Gross Amounts Offset in the Statement of Financial Position		0		0
Net Amounts of Liabilities presented in the Statement of Financial Position		133,312		270,773
Fair Value Collateral Posted		133,312		270,773
Net Amount		0		0
Fair value of derivatives in a net liability position		24,500
Interest rate swap
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Asset derivatives (other assets), fair value		25,944		22,958
Derivative Asset, Not Offset, Policy Election Deduction		6,538		0
Liability derivatives (other liabilities), fair value		28,735		21,533
Derivative Asset [Abstract]
Gross Amounts Offset in the Statement of Financial Position		0		0
Derivative financial instruments		25,944		22,958
Fair Value Collateral Received/ Pledged		19,406		9,010
Net Amount		0		13,948
Derivative Liability [Abstract]
Gross Amounts Offset in the Statement of Financial Position		0		0
Net Amounts of Liabilities presented in the Statement of Financial Position		28,735		21,533
Fair Value Collateral Posted		0		0
Net Amount		22,197		21,533
Securities Sold under Agreements to Repurchase [Abstract]
Derivative Asset, Not Offset, Policy Election Deduction		6,538		0
Interest rate collar
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Asset derivatives (other assets), fair value		0
Derivative Asset, Not Offset, Policy Election Deduction		0		0
Liability derivatives (other liabilities), fair value		1,559		48
Derivative Asset [Abstract]
Gross Amounts Offset in the Statement of Financial Position		0
Derivative financial instruments		0
Financial Instruments		0
Fair Value Collateral Received/ Pledged		0
Net Amount		0
Derivative Liability [Abstract]
Gross Amounts Offset in the Statement of Financial Position		0		0
Net Amounts of Liabilities presented in the Statement of Financial Position		1,559		48
Fair Value Collateral Posted		0		0
Net Amount		1,559		48
Derivatives Designated as Hedging Instruments:
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Asset derivatives (other assets), fair value		2,181		2,348
Liability derivatives (other liabilities), fair value		6,530		969
Derivatives Designated as Hedging Instruments: | Other Assets | Interest rate swap
Derivative [Line Items]
Notional value		211,962		161,962
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative Asset, Notional Amount		211,962		161,962
Asset derivatives (other assets), fair value		2,181		2,348
Derivatives Designated as Hedging Instruments: | Other Assets | Interest rate collar
Derivative [Line Items]
Notional value		100,000		100,000
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative Asset, Notional Amount		100,000		100,000
Asset derivatives (other assets), fair value		0		0
Derivatives Designated as Hedging Instruments: | Other Liabilities | Interest rate swap
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Liability derivatives (other liabilities), fair value		4,971		921
Derivatives Designated as Hedging Instruments: | Other Liabilities | Interest rate collar
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Liability derivatives (other liabilities), fair value		1,559		48
Derivatives not Designated as Hedging Instruments: | Other Assets | Interest rate swap
Derivative [Line Items]
Notional value		772,498		687,902
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative Asset, Notional Amount		772,498		687,902
Asset derivatives (other assets), fair value		23,763		20,610
Derivatives not Designated as Hedging Instruments: | Other Liabilities | Interest rate swap
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Liability derivatives (other liabilities), fair value		23,764		20,612
Cash Flow Hedging | Cash Flow Hedge 1
Derivative [Line Items]
Notional value		$ 15,465
Derivative, fixed rate		2.60%
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative Asset, Notional Amount		$ 15,465
Cash Flow Hedging | Cash Flow Hedge 2
Derivative [Line Items]
Notional value		$ 14,433
Derivative, fixed rate		2.60%
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative Asset, Notional Amount		$ 14,433
Cash Flow Hedging | Cash Flow Hedge 3
Derivative [Line Items]
Notional value		$ 18,558
Derivative, fixed rate		2.64%
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative Asset, Notional Amount		$ 18,558
Cash Flow Hedging | Cash Flow Hedge 4
Derivative [Line Items]
Notional value		$ 13,506
Derivative, fixed rate		2.64%
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative Asset, Notional Amount		$ 13,506
Cash Flow Hedging | Subordinated Debt
Derivative [Line Items]
Notional value		$ 62,000
Derivative, Variable Interest Rate		2.62%
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative Asset, Notional Amount		$ 62,000
Cash Flow Hedging | Derivatives Designated as Hedging Instruments:
Derivative [Line Items]
Notional value			$ 50,000	$ 100,000
Derivative, fixed rate			6.56%	6.63%
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative Asset, Notional Amount			$ 50,000	$ 100,000
Prime Based Interest Rate Collar | Derivatives Designated as Hedging Instruments:
Derivative [Line Items]
Notional value				100,000
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative Asset, Notional Amount				$ 100,000
Prime Based Interest Rate Collar | Derivatives Designated as Hedging Instruments: | Minimum
Derivative [Line Items]
Derivative, Variable Interest Rate				8.14%
Prime Based Interest Rate Collar | Derivatives Designated as Hedging Instruments: | Maximum
Derivative [Line Items]
Derivative, Variable Interest Rate				5.25%
Scenario, Forecast | Cash Flow Hedging | Interest Expense
Derivative [Line Items]
Decrease to interest expense and decrease to interest income	$ 1,400
Scenario, Forecast | Cash Flow Hedging | Interest Income
Derivative [Line Items]
Decrease to interest expense and decrease to interest income	$ 2,900