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Investments (Narrative) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2024 USD ($) item	Dec. 31, 2023 USD ($)
Schedule of Available-for-sale Securities [Line Items]
Fair value	$ 508,604	$ 472,503
Number of investments in a single issuer exceeds 10% of shareholders' equity | item	0
Percent of shareholders equity benchmark for investments in a single issuer	10.00%
Equity securities	$ 166	427
Public Funds And Trust Deposits [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair value	$ 151,700	$ 207,400
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Number of equity investments | item	1

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