Derivative Instruments and Hedging Activities - Interest Rate Derivatives Designated as Hedges (Details) - Derivative - interest rate swap: - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Derivative [Line Items]
Deferred issuance costs	$ 1,400	$ 2,000
Fair value hedge interest rate swaps | Derivatives designated as hedging instruments:
Derivative [Line Items]
Net Carrying Amount of the Hedge Asset		503,877
Net Carrying Amount of the Hedge Liability	285,297	276,572
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Asset Increase (Decrease)		3,877
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Liability Increase (Decrease)	(13,326)	$ (21,445)
Fair value hedge interest rate swaps | Derivatives designated as hedging instruments: | Bank Time Deposits
Derivative [Line Items]
Net Carrying Amount of the Hedge Asset	489,401
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Asset Increase (Decrease)	$ 9,097