Regulatory Matters - Capital Tier Classifications (Details)	Dec. 31, 2021
Mortgage Banking [Abstract]
Tier one leverage capital required to be well capitalized to average assets	0.05
Tier one leverage capital required to be well capitalized to average assets	6.50%
Tier one risk based capital required to be well capitalized to risk weighted assets	0.08
Capital required to be well capitalized to risk weighted assets	0.10
Tier one leverage capital required for capital adequacy to average assets	0.04
Tier one leverage capital required for capital adequacy to average assets	4.50%
Tier one risk based capital required for capital adequacy to risk weighted assets	0.06
Capital required for capital adequacy to risk weighted assets	0.08
Tier one leverage capital required to be undercapitalized to average assets	4.00%
Tier one leverage capital required to be undercapitalized to average assets	4.50%
Tier one risk based capital required to be undercapitalized to risk weighted assets	6.00%
Capital required to be undercapitalized to risk weighted assets	8.00%
Tier one leverage capital required to be significantly undercapitalized to average assets	3.00%
Tier one leverage capital required to be significantly undercapitalized to average assets	3.00%
Tier one risk based capital required to be significantly undercapitalized to risk weighted assets	4.00%
Capital required to be significantly undercapitalized to risk weighted assets	6.00%
Tangible capital required to be critically undercapitalized to total assets	2.00%