Regulatory Capital Requirements and Restrictions Narrative (Details)	Dec. 31, 2020
Banking and Thrift, Other Disclosures [Abstract]
Banking Regulation, Capital Conservation Buffer, Capital Conserved, Minimum	3.0

Minimum capital conservation buffer percentage required to avoid restriction on payout amount of eligible retained income as defined by regulatory framework.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826

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