Quarterly report pursuant to Section 13 or 15(d)

Loans - Analysis of Past Due Loans, Including Loans on Nonaccrual Status, Disaggregated by Loan Class, Non-PCI (Detail)

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Loans - Analysis of Past Due Loans, Including Loans on Nonaccrual Status, Disaggregated by Loan Class, Non-PCI (Detail) - USD ($)
$ in Thousands
Sep. 30, 2022
Dec. 31, 2021
Financing Receivable, Past Due [Line Items]    
Past due loans receivable $ 11,918 $ 10,716
Loans receivable 5,800,991 5,151,541
Residential    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 414 1,876
Loans receivable 649,589 400,546
30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 8,888 5,038
30-59 Days Past Due | Residential    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 404 570
60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 1,165 3,442
60-89 Days Past Due | Residential    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable   750
90 Days or More Past Due    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 1,865 2,236
90 Days or More Past Due | Residential    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 10 556
Current    
Financing Receivable, Past Due [Line Items]    
Loans receivable 5,789,073 5,140,825
Current | Residential    
Financing Receivable, Past Due [Line Items]    
Loans receivable 649,175 398,670
Real Estate    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 5,419 3,714
Loans receivable 4,503,534 4,102,411
Real Estate | Retail    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 3,531  
Loans receivable 1,044,287 970,134
Real Estate | Hospitality    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 991 556
Loans receivable 662,438 717,692
Real Estate | Other    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 483 1,282
Loans receivable 2,044,878 1,919,033
Real Estate | Total commercial property loans    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 5,005 1,838
Loans receivable 3,751,603 3,606,859
Real Estate | Construction    
Financing Receivable, Past Due [Line Items]    
Loans receivable 102,342 95,006
Real Estate | Residential    
Financing Receivable, Past Due [Line Items]    
Loans receivable 649,589 400,546
Real Estate | 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 5,140 1,218
Real Estate | 30-59 Days Past Due | Retail    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 3,531  
Real Estate | 30-59 Days Past Due | Hospitality    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 991 556
Real Estate | 30-59 Days Past Due | Other    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 214 92
Real Estate | 30-59 Days Past Due | Total commercial property loans    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 4,736 648
Real Estate | 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable   1,441
Real Estate | 60-89 Days Past Due | Other    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable   691
Real Estate | 60-89 Days Past Due | Total commercial property loans    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable   691
Real Estate | 90 Days or More Past Due    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 279 1,055
Real Estate | 90 Days or More Past Due | Other    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 269 499
Real Estate | 90 Days or More Past Due | Total commercial property loans    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 269 499
Real Estate | Current    
Financing Receivable, Past Due [Line Items]    
Loans receivable 4,498,115 4,098,697
Real Estate | Current | Retail    
Financing Receivable, Past Due [Line Items]    
Loans receivable 1,040,756 970,134
Real Estate | Current | Hospitality    
Financing Receivable, Past Due [Line Items]    
Loans receivable 661,447 717,136
Real Estate | Current | Other    
Financing Receivable, Past Due [Line Items]    
Loans receivable 2,044,395 1,917,751
Real Estate | Current | Total commercial property loans    
Financing Receivable, Past Due [Line Items]    
Loans receivable 3,746,598 3,605,021
Real Estate | Current | Construction    
Financing Receivable, Past Due [Line Items]    
Loans receivable 102,342 95,006
Commercial and Industrial    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 117 65
Loans receivable 732,033 561,831
Commercial and Industrial | 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 82 56
Commercial and Industrial | 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 35 9
Commercial and Industrial | Current    
Financing Receivable, Past Due [Line Items]    
Loans receivable 731,916 561,766
Equipment Financing Agreements    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 6,382 6,937
Loans receivable 565,424 487,299
Equipment Financing Agreements | 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 3,666 3,764
Equipment Financing Agreements | 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 1,130 1,992
Equipment Financing Agreements | 90 Days or More Past Due    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 1,586 1,181
Equipment Financing Agreements | Current    
Financing Receivable, Past Due [Line Items]    
Loans receivable $ 559,042 $ 480,362