Derivative Instruments and Hedging Activities - Gains (Losses) on Interest Rate Derivatives Designated as Fair Value Hedges (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Gain Loss On Fair Value Hedges Recognized In Earnings [Line Items]
Gain (loss) related to hedged loans			$ (7,048)	$ (6,083)
Fair value hedge interest rate swaps | Interest income | Derivative - interest rate swap:
Gain Loss On Fair Value Hedges Recognized In Earnings [Line Items]
Gain (loss) related to derivative interest rate swaps	$ 0	$ 676	0	5,555
Fair value hedge interest rate swaps | Interest income | Hedged items - loans, time deposits and subordinated debt: | Derivatives designated as hedging instruments
Gain Loss On Fair Value Hedges Recognized In Earnings [Line Items]
Gain (loss) related to hedged loans	(161)	(702)	(322)	(5,626)
Fair value hedge interest rate swaps | Interest expense | Derivative - interest rate swap:
Gain Loss On Fair Value Hedges Recognized In Earnings [Line Items]
Gain (loss) related to derivative interest rate swaps	2,155	3,004	6,724	1,713
Fair value hedge interest rate swaps | Interest expense | Hedged items - loans, time deposits and subordinated debt: | Derivatives designated as hedging instruments
Gain Loss On Fair Value Hedges Recognized In Earnings [Line Items]
Gain (loss) related to hedged loans	$ (2,194)	$ (3,063)	$ (6,726)	$ (1,680)