Loans And Related Allowances For Loan Losses (TDRs) (Details) - contract	3 Months Ended	12 Months Ended
Mar. 31, 2022	Dec. 31, 2021
Troubled Debt Restructuring [Member]
Financing Receivable, Impaired [Line Items]
Number of contracts	12	12

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

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

Name:	us-gaap_FinancingReceivableModificationsNumberOfContracts2
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration