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, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Gain Loss On Fair Value Hedges Recognized In Earnings [Line Items]
Gain (loss) related to hedged loans			$ (1,689)	$ (7,048)
Fair value hedge interest rate swaps \| Income Statement Location [Axis]: us-gaap:InterestExpenseOperating \| Derivative - interest rate swaps:
Gain Loss On Fair Value Hedges Recognized In Earnings [Line Items]
Gain (loss) related to derivative interest rate swaps	$ 541	$ 2,155	764	6,724
Fair value hedge interest rate swaps \| Income Statement Location [Axis]: us-gaap:InterestExpenseOperating \| 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	(731)	(2,194)	(919)	(6,726)
Fair value hedge interest rate swaps \| Income Statement Location [Axis]: us-gaap:InterestIncomeExpenseNet \| 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	0	(161)	0	(322)
Fair value hedge interest rate swaps \| Income Statement Location [Axis]: us-gaap:NoninterestIncome \| Derivative - interest rate swaps:
Gain Loss On Fair Value Hedges Recognized In Earnings [Line Items]
Gain (loss) related to derivative interest rate swaps	$ 9,600	$ 8,300	$ 19,200	$ 14,000