Investment Tax Credit (Schedule of Affordable Housing Tax Credit Investment) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Federal Home Loan Banks [Abstract]
Proportional amortization	$ 16,777	$ 12,026	$ 10,003
Tax credit investment credits and tax benefits	$ 20,932	$ 14,553	$ 12,253

Amount of amortization expense of investment in qualified affordable housing projects.

Reference 1: http://www.xbrl.org/2003/role/recommendedDisclosureRef
-Topic 323
-SubTopic 740
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481543/323-740-50-2

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration