Derivative Financial Instruments - Type of Hedge and Fair Value of Derivative Instruments (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Fair Value Hedging
Derivative Instrument Detail [Abstract]
Notional Amount	$ 445,610	$ 395,898
Average Maturity (years)	2 years 10 months 24 days	3 years 10 months 24 days
Fair Value	$ 7,159	$ 12,733
Fair Value Hedging | Interest Rate Cap
Derivative Instrument Detail [Abstract]
Notional Amount	$ 40,970	$ 40,970
Average Maturity (years)	3 years 7 months 6 days	4 years 3 months 18 days
Fair Value	$ 181	$ 456
Cash Flow Hedging | Interest Rate Floor
Derivative Instrument Detail [Abstract]
Notional Amount	$ 325,000	$ 150,000
Average Maturity (years)	2 years 6 months	3 years 6 months
Fair Value	$ 7,281	$ 4,221
Derivatives not designated as hedging instruments
Derivative Instrument Detail [Abstract]
Notional Amount	$ 1,051,604	$ 806,547
Average Maturity (years)	4 years 10 months 24 days	5 years 6 months
Fair Value	$ 278	$ (106)
Derivatives not designated as hedging instruments | Interest Rate Lock Commitments
Derivative Instrument Detail [Abstract]
Notional Amount	$ 26,947	$ 18,081
Average Maturity (years)	1 month 6 days	1 month 6 days
Fair Value	$ 253	$ 173
Derivatives not designated as hedging instruments | Mandatory Commitments to Sell Mortgage Loans
Derivative Instrument Detail [Abstract]
Notional Amount	$ 40,399	$ 30,442
Average Maturity (years)	1 month 6 days	1 month 6 days
Fair Value	$ 25	$ (279)
Fixed Income Interest Rate | Fair Value Hedging | Interest Rate Swap | Commercial
Derivative Instrument Detail [Abstract]
Notional Amount	$ 5,745	$ 6,033
Average Maturity (years)	4 years 7 months 6 days	5 years 4 months 24 days
Fair Value	$ 239	$ 349
Fixed Income Interest Rate | Fair Value Hedging | Interest Rate Swap | Installment
Derivative Instrument Detail [Abstract]
Notional Amount	$ 100,000	$ 100,000
Average Maturity (years)	2 years 8 months 12 days	3 years 4 months 24 days
Fair Value	$ (1,741)	$ (1,228)
Fixed Income Interest Rate | Fair Value Hedging | Interest Rate Swap | Mortgage
Derivative Instrument Detail [Abstract]
Notional Amount	$ 150,000	$ 100,000
Average Maturity (years)	2 years 9 months 18 days	4 years 3 months 18 days
Fair Value	$ (2,779)	$ (2,131)
Fixed Income Interest Rate | Fair Value Hedging | Interest Rate Swap, Noncommercial
Derivative Instrument Detail [Abstract]
Notional Amount	$ 148,895	$ 148,895
Average Maturity (years)	3 years 1 month 6 days	3 years 10 months 24 days
Fair Value	$ 11,259	$ 15,287
Fixed Income Interest Rate | Derivatives not designated as hedging instruments | Interest Rate Swap | Commercial
Derivative Instrument Detail [Abstract]
Notional Amount	$ 492,129	$ 379,012
Average Maturity (years)	5 years 2 months 12 days	5 years 10 months 24 days
Fair Value	$ (1,313)	$ 7,169
Variable Income Interest Rate | Derivatives not designated as hedging instruments | Interest Rate Swap | Commercial
Derivative Instrument Detail [Abstract]
Notional Amount	$ 492,129	$ 379,012
Average Maturity (years)	5 years 2 months 12 days	5 years 10 months 24 days
Fair Value	$ 1,313	$ (7,169)