Basis of Accounting and Consolidation - Premises and Equipment (Details)	12 Months Ended
	Dec. 31, 2022
Building and Building Improvements | Minimum
Property Plant And Equipment [Line Items]
Property, plant and equipment, useful life	20 years
Building and Building Improvements | Maximum
Property Plant And Equipment [Line Items]
Property, plant and equipment, useful life	40 years
Leasehold Improvements | Minimum
Property Plant And Equipment [Line Items]
Property, plant and equipment, useful life	5 years
Leasehold Improvements | Maximum
Property Plant And Equipment [Line Items]
Property, plant and equipment, useful life	15 years
Furniture and Fixtures | Minimum
Property Plant And Equipment [Line Items]
Property, plant and equipment, useful life	3 years
Furniture and Fixtures | Maximum
Property Plant And Equipment [Line Items]
Property, plant and equipment, useful life	7 years