Fair Value Measurement (Narrative) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Fair Value Disclosures [Abstract]
Loans and leases, at fair value	$ 294,012,000		$ 285,581,000
Unrealized gains (losses) arising during the period	25,812,000	$ (12,703,000)
Changes in unrealized gains and losses on junior subordinated debentures carried at fair value, net of taxes	19,101,000	(9,436,000)
Residential Mortgage Banking Revenue
Fair Value, Option, Quantitative Disclosures [Line Items]
Net increase (decrease) in fair value	81,000	(11,100,000)
Other Income
Fair Value, Option, Quantitative Disclosures [Line Items]
Net increase (decrease) in fair value	$ 9,500,000	$ (21,000,000)