Goodwill and Other Intangible Assets (Core Deposit Intangibles) (Details) - Core Deposit Intangibles - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Gross balance	$ 86,099,000	$ 86,099,000
Accumulated amortization	(82,471,000)	(79,722,000)
Net carrying balance	3,628,000	6,377,000
Impairment write-offs/write downs on the remaining core deposit intangibles	$ 0	$ 0	$ 0