Fair Value of Assets and Liabilities - Additional Information (Details) - Significant Other Unobservable Inputs (Level 3) $ in Millions	Dec. 31, 2020 USD ($) branch
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation allowance equipment held for sale	$ 7.0
Number of branches closed | branch	12
Net Occupancy Expense
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation allowance equipment held for sale	$ 3.6
Interest and Fees on Loans and Leases
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation allowance equipment held for sale	3.0
Net Equipment Expense
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation allowance equipment held for sale	$ 0.4