Shareholders' Equity (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Equity, Class of Treasury Stock [Line Items]
Amount of treasury repurchases	$ 8,814	$ 9,479
Trust preferred securities included in Tier 1 Capital	22,000	22,000
Bank [Member]
Equity, Class of Treasury Stock [Line Items]
Dividends paid by Bank to Bancorp	$ 38,822	$ 53,240	$ 45,732
2024 Stock Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Authorized amount (in shares)	850,000
Authorized amount as a percentage of total common stock	5.00%
2023 Stock Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Amount of treasury share repurchases	200,000
Average prices of treasury repurchases	$ 43.70
Amount of treasury repurchases	$ 8,800
Excise tax attributable to shares repurchased	$ 73