Loans and Allowance for Credit Losses (Troubled Debt Restructurings Modified by Portfolio Class) (Details) $ in Thousands	12 Months Ended
Dec. 31, 2021 USD ($) contract	Dec. 31, 2020 USD ($) contract	Dec. 31, 2019 USD ($) contract
Financing Receivable, Modifications [Line Items]
Number of Contracts \| contract	14	26	49
Pre-Modification Outstanding Recorded Investment	$ 8,807	$ 4,570	$ 68,118
Post-Modification Outstanding Recorded Investment	$ 8,830	$ 4,570	$ 61,307
Total Commercial [Member] \| Commercial Real Estate - Income Producing [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts \| contract			1
Pre-Modification Outstanding Recorded Investment			$ 123
Post-Modification Outstanding Recorded Investment			$ 123
Total Commercial [Member] \| Construction and Land Development [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts \| contract		1	3
Pre-Modification Outstanding Recorded Investment		$ 15	$ 323
Post-Modification Outstanding Recorded Investment		$ 15	$ 323
Residential Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts \| contract	6	15	21
Pre-Modification Outstanding Recorded Investment	$ 1,489	$ 3,424	$ 3,286
Post-Modification Outstanding Recorded Investment	$ 1,512	$ 3,424	$ 3,286
Consumer [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts \| contract	4	6	10
Pre-Modification Outstanding Recorded Investment	$ 86	$ 89	$ 168
Post-Modification Outstanding Recorded Investment	$ 86	$ 89	$ 168
Total Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts \| contract	4	4	14
Pre-Modification Outstanding Recorded Investment	$ 7,232	$ 1,042	$ 64,218
Post-Modification Outstanding Recorded Investment	$ 7,232	$ 1,042	$ 57,407
Total Commercial And Industrial [Member] \| Total Commercial [Member] \| Commercial Non-Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts \| contract	4	3	13
Pre-Modification Outstanding Recorded Investment	$ 7,232	$ 745	$ 64,051
Post-Modification Outstanding Recorded Investment	$ 7,232	$ 745	$ 57,240
Total Commercial And Industrial [Member] \| Total Commercial [Member] \| Commercial Real Estate - Owner Occupied
Financing Receivable, Modifications [Line Items]
Number of Contracts \| contract		1	1
Pre-Modification Outstanding Recorded Investment		$ 297	$ 167
Post-Modification Outstanding Recorded Investment		$ 297	$ 167

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Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524

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