Derivatives (Effects of Derivative Instruments on the Statements of Income) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Derivative Instruments, Gain (Loss) [Line Items]
Derivative income reflected in income statement	$ (10,592)	$ (5,878)	$ (22,559)	$ (10,062)
Derivatives Designated as Hedging Instruments [Member] | Cash Flow Hedge [Member] | Interest Rate Swaps - Variable Rate Loans [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative income reflected in income statement	$ (12,913)	$ (9,492)	$ (25,471)	$ (17,493)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Interest and Fee Income, Loan and Lease, Held-in-Portfolio	Interest and Fee Income, Loan and Lease, Held-in-Portfolio	Interest and Fee Income, Loan and Lease, Held-in-Portfolio	Interest and Fee Income, Loan and Lease, Held-in-Portfolio
Derivatives Designated as Hedging Instruments [Member] | Fair Value Hedging [Member] | Interest Rate Swaps - Securities [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative income reflected in income statement	$ 3,114	$ 3,013	$ 6,222	$ 5,763
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Interest Income, Securities, Operating, Taxable	Interest Income, Securities, Operating, Taxable	Interest Income, Securities, Operating, Taxable	Interest Income, Securities, Operating, Taxable
Derivatives Not Designated as Hedging Instruments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative income reflected in income statement	$ (1,060)	$ 584	$ (3,862)	$ 1,167
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Noninterest Income, Other	Noninterest Income, Other	Noninterest Income, Other	Noninterest Income, Other
Derivatives Not Designated as Hedging Instruments [Member] | Residential mortgage banking
Derivative Instruments, Gain (Loss) [Line Items]
Derivative income reflected in income statement	$ 267	$ 17	$ 552	$ 501
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Noninterest Income	Noninterest Income	Noninterest Income	Noninterest Income