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Summary of Significant Accounting Policies (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2022
USD ($)
segment
Dec. 31, 2021
USD ($)
Basis Of Presentation [Line Items]    
Restricted cash $ 66.8 $ 65.1
Loan agreement, repayment performance, reasonable period of time 6 months  
Troubled debt restructurings, extension of the maturity, term 1 year  
Short-term deferrals, term 12 months  
Financing receivable, allowance for credit losses, period beyond a reasonable forecast can be made 2 years  
Financing receivable, allowance for credit losses, historical rates period 1 year  
Number of reportable segments | segment 4  
Award requisite service period 3 years  
CDI    
Basis Of Presentation [Line Items]    
Finite-lived intangible asset, useful life 10 years  
Level 3 | Fair Value, Measurements, Recurring | Other non-interest expense    
Basis Of Presentation [Line Items]    
Fair value adjustment on derivative $ 6.0 $ 2.7
Minimum    
Basis Of Presentation [Line Items]    
Other intangible assets, useful life 8 years  
Minimum | Buildings and improvements    
Basis Of Presentation [Line Items]    
Premises and equipment, useful life 10 years  
Minimum | Furniture, equipment and software    
Basis Of Presentation [Line Items]    
Premises and equipment, useful life 3 years  
Minimum | Software and Software Development Costs    
Basis Of Presentation [Line Items]    
Premises and equipment, useful life 3 years  
Maximum    
Basis Of Presentation [Line Items]    
Other intangible assets, useful life 10 years  
Maximum | Buildings and improvements    
Basis Of Presentation [Line Items]    
Premises and equipment, useful life 40 years  
Maximum | Furniture, equipment and software    
Basis Of Presentation [Line Items]    
Premises and equipment, useful life 10 years  
Maximum | Software and Software Development Costs    
Basis Of Presentation [Line Items]    
Premises and equipment, useful life 7 years