Derivative Financial Instruments - Derivative Financial Instruments and the Amount and Location of the Net Gains or Losses Recognized in the Statements of Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Derivative Instruments Gain Loss [Line Items]
Net gains (losses) recognized in the statements of income	$ (762)	$ 6,076
Derivatives designated as hedging instruments | Interest Income on Investment Securities Available-for-Sale
Derivative Instruments Gain Loss [Line Items]
Net gains (losses) recognized in the statements of income	5,673	(17,002)
Derivatives designated as hedging instruments | Interest and Fees on Loans and Leases
Derivative Instruments Gain Loss [Line Items]
Net gains (losses) recognized in the statements of income	8,372	(22,751)
Derivatives designated as hedging instruments | Interest Rate Swap Agreements | Interest Income on Investment Securities Available-for-Sale
Derivative Instruments Gain Loss [Line Items]
Net gains (losses) recognized in the statements of income	(5,662)	16,893
Derivatives designated as hedging instruments | Interest Rate Swap Agreements | Interest and Fees on Loans and Leases
Derivative Instruments Gain Loss [Line Items]
Net gains (losses) recognized in the statements of income	(8,379)	22,603
Derivatives designated as hedging instruments | Cash Settlements | Interest Income on Investment Securities Available-for-Sale
Derivative Instruments Gain Loss [Line Items]
Net gains (losses) recognized in the statements of income	(1,868)	2,722
Derivatives designated as hedging instruments | Cash Settlements | Interest and Fees on Loans and Leases
Derivative Instruments Gain Loss [Line Items]
Net gains (losses) recognized in the statements of income	1,533	3,348
Derivatives not designated as hedging instruments | Interest Rate Lock Commitments
Derivative Instruments Gain Loss [Line Items]
Net gains (losses) recognized in the statements of income	$ 200	$ 123
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Mortgage Banking Income	Mortgage Banking Income
Derivatives not designated as hedging instruments | Forward Commitments
Derivative Instruments Gain Loss [Line Items]
Net gains (losses) recognized in the statements of income	$ (35)	$ 96
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Mortgage Banking Income	Mortgage Banking Income
Derivatives not designated as hedging instruments | Interest Rate Swap Agreements
Derivative Instruments Gain Loss [Line Items]
Net gains (losses) recognized in the statements of income	$ (18)	$ 44
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Noninterest Income, Other Operating Income	Noninterest Income, Other Operating Income
Derivatives not designated as hedging instruments | Conversion Rate Swap Agreements
Derivative Instruments Gain Loss [Line Items]
Net gains (losses) recognized in the statements of income	$ (578)	$ (0)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Noninterest Income, Other Operating Income	Noninterest Income, Other Operating Income