Regulatory Matters - Narratives (Details)	9 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Compliance with Regulatory Capital Requirements under Banking Regulations
Total capital to risk-weighted assets requirement (percent)	0.0800	0.0800
Tier 1 capital to risk-weighted assets requirement (percent)	0.1142	0.1118
Tier one	0.0700	0.0700
Tier one risk based capital ratio	0.0850	0.0850
Total risk-based capital ratio	0.1050	0.1050
Minimum
Compliance with Regulatory Capital Requirements under Banking Regulations
Common equity Tier 1 capital requirement of risk-weighted assets (percent)	4.50%
Leverage ratio (percent)	4.00%
Regulatory risk based capital conservation buffer (percent)	2.50%
Maximum
Compliance with Regulatory Capital Requirements under Banking Regulations
Tier 1 capital to risk-weighted assets requirement (percent)	0.060