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Allowance For Credit Losses On Loans (Narrative) (Details)	9 Months Ended
	Sep. 30, 2025 USD ($) item	Sep. 30, 2024 USD ($) item	Dec. 31, 2024 USD ($)
Financing Receivable, Modifications [Line Items]
Accrued interest receivable on loans	$ 7,400,000		$ 7,400,000
Committed to lend loans	$ 204,000	$ 128,000
Number of loans experiencing financial difficulty | item	0	0
Principal balance	$ 1,959,439,000		1,866,115,000
Collateral Dependent Impaired Loans [Member]
Financing Receivable, Modifications [Line Items]
Principal balance	$ 0		$ 113,000

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