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Business Combinations, Goodwill and Intangible Assets (Schedule of Acquired Intangible Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Gross Amount	$ 31,445	$ 26,896
Accumulated Amortization	(20,655)	(16,934)
Core Banking | Core Deposit Intangible
Business Acquisition [Line Items]
Gross Amount	25,780	21,231
Accumulated Amortization	(15,110)	(11,418)
Core Banking | Branch Acquisition Intangible
Business Acquisition [Line Items]
Gross Amount	257	257
Accumulated Amortization	(257)	(257)
Insurance | Customer List
Business Acquisition [Line Items]
Gross Amount	5,408	5,408
Accumulated Amortization	$ (5,288)	$ (5,259)

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
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-Section 50
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 928
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