Regulatory and Operational Matters - Narrative (Details)	Mar. 31, 2023	Dec. 31, 2022
Regulatory Capital Requirements under Banking Regulations [Abstract]
Banking regulation, tier one leverage capital ratio, actual	0.0925	0.0927

Ratio of Tier 1 capital to average assets 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 https://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826

Name:	us-gaap_TierOneLeverageCapitalToAverageAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant