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Regulatory Capital (Details)
Mar. 31, 2021
Compliance with Regulatory Capital Requirements under Banking Regulations  
Leverage ratio 10.19%
Leverage ratio, Required for capital adequacy purposes effective 10.09%
Bank  
Compliance with Regulatory Capital Requirements under Banking Regulations  
Leverage ratio 9.85%
Leverage ratio, To be well-capitalized under prompt corrective action regulations 9.80%