Premises and equipment - Additional Information (Details) - USD ($) $ in Millions |
12 Months Ended | ||
---|---|---|---|
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
|
Disclosure Of Premises And Equipmen Additional Information [Abstract] | |||
Depreciation, Depletion and Amortization | $ 55.1 | $ 55.1 | $ 58.4 |
Occupancy Expense | 24.8 | 25.2 | 27.2 |
Equipment technology and software and other operating expenses | 30.3 | 29.8 | 31.2 |
Rental Income | $ 13.1 | $ 13.4 | $ 15.5 |