Quarterly report [Sections 13 or 15(d)]

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

v3.25.2
Loans - Analysis of Past Due Loans, Including Loans on Nonaccrual Status, Disaggregated by Loan Class, Non-PCI (Detail) - USD ($)
$ in Thousands
Jun. 30, 2025
Mar. 31, 2025
Dec. 31, 2024
Financing Receivable, Past Due [Line Items]      
Total Loans $ 6,305,957   $ 6,251,377
Residential      
Financing Receivable, Past Due [Line Items]      
Total Loans 993,869   951,302
30-59 Days Past Due | Residential      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable 1,928   5,129
60-89 Days Past Due | Residential      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable     2,975
90 Days or More Past Due | Residential      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable 487   980
Non-PCI Loans      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable 34,208   29,776
Non-PCI Loans | Residential      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable 4,421   9,084
Non-PCI Loans | 30-59 Days Past Due      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable 11,680   14,298
Non-PCI Loans | 60-89 Days Past Due      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable 4,359   6,990
Non-PCI Loans | 90 Days or More Past Due      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable 18,168   8,488
Non-PCI Loans | Current      
Financing Receivable, Past Due [Line Items]      
Total Loans 6,271,749   6,221,601
Non-PCI Loans | Current | Residential      
Financing Receivable, Past Due [Line Items]      
Total Loans 989,448   942,218
Real Estate      
Financing Receivable, Past Due [Line Items]      
Total Loans 4,942,791   4,900,924
Real Estate | Retail      
Financing Receivable, Past Due [Line Items]      
Total Loans 1,116,540   1,068,978
Real Estate | Hospitality      
Financing Receivable, Past Due [Line Items]      
Total Loans 822,021   848,134
Real Estate | Office      
Financing Receivable, Past Due [Line Items]      
Total Loans 556,453   568,861
Real Estate | Other      
Financing Receivable, Past Due [Line Items]      
Total Loans 1,373,836   1,385,051
Real Estate | Total commercial property loans      
Financing Receivable, Past Due [Line Items]      
Total Loans 3,868,850   3,871,024
Real Estate | Construction      
Financing Receivable, Past Due [Line Items]      
Total Loans 80,072   78,598
Real Estate | Residential      
Financing Receivable, Past Due [Line Items]      
Total Loans 993,869   951,302
Real Estate | 30-59 Days Past Due      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable 5,210    
Real Estate | 30-59 Days Past Due | Retail      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable 1,599   975
Real Estate | 30-59 Days Past Due | Hospitality      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable 1,021   516
Real Estate | 30-59 Days Past Due | Other      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable 662   1,288
Real Estate | 30-59 Days Past Due | Total commercial property loans      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable 3,282    
Real Estate | 60-89 Days Past Due      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable 2,005    
Real Estate | 60-89 Days Past Due | Retail      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable     855
Real Estate | 60-89 Days Past Due | Hospitality      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable 0   (50)
Real Estate | 60-89 Days Past Due | Office      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable 0   212
Real Estate | 60-89 Days Past Due | Total commercial property loans      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable 0    
Real Estate | 90 Days or More Past Due      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable 13,881    
Real Estate | 90 Days or More Past Due | Retail      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable 401   254
Real Estate | 90 Days or More Past Due | Hospitality      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable 2,003   216
Real Estate | 90 Days or More Past Due | Office      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable 10,990    
Real Estate | 90 Days or More Past Due | Total commercial property loans      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable 13,394    
Real Estate | Current | Office      
Financing Receivable, Past Due [Line Items]      
Total Loans 556,453    
Real Estate | Current | Other      
Financing Receivable, Past Due [Line Items]      
Total Loans     1,385,051
Real Estate | Non-PCI Loans      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable 21,097   13,350
Real Estate | Non-PCI Loans | Retail      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable 2,000   2,084
Real Estate | Non-PCI Loans | Hospitality      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable 3,024   682
Real Estate | Non-PCI Loans | Office      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable 10,990   212
Real Estate | Non-PCI Loans | Other      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable 662   1,288
Real Estate | Non-PCI Loans | Total commercial property loans      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable 16,676   4,266
Real Estate | Non-PCI Loans | 30-59 Days Past Due      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable     7,908
Real Estate | Non-PCI Loans | 30-59 Days Past Due | Total commercial property loans      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable     2,779
Real Estate | Non-PCI Loans | 60-89 Days Past Due      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable     3,992
Real Estate | Non-PCI Loans | 60-89 Days Past Due | Total commercial property loans      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable     1,017
Real Estate | Non-PCI Loans | 90 Days or More Past Due      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable     1,450
Real Estate | Non-PCI Loans | 90 Days or More Past Due | Total commercial property loans      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable     470
Real Estate | Non-PCI Loans | Current      
Financing Receivable, Past Due [Line Items]      
Total Loans 4,921,694   4,887,574
Real Estate | Non-PCI Loans | Current | Retail      
Financing Receivable, Past Due [Line Items]      
Total Loans 1,114,540   1,066,894
Real Estate | Non-PCI Loans | Current | Hospitality      
Financing Receivable, Past Due [Line Items]      
Total Loans 818,997   847,452
Real Estate | Non-PCI Loans | Current | Office      
Financing Receivable, Past Due [Line Items]      
Total Loans 545,463   568,649
Real Estate | Non-PCI Loans | Current | Other      
Financing Receivable, Past Due [Line Items]      
Total Loans 1,373,174   1,383,763
Real Estate | Non-PCI Loans | Current | Total commercial property loans      
Financing Receivable, Past Due [Line Items]      
Total Loans 3,852,174   3,866,758
Real Estate | Non-PCI Loans | Current | Construction      
Financing Receivable, Past Due [Line Items]      
Total Loans 80,072   78,598
Commercial and Industrial      
Financing Receivable, Past Due [Line Items]      
Total Loans 917,995 $ 917,995 863,431
Commercial and Industrial | 30-59 Days Past Due      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable 575   236
Commercial and Industrial | 60-89 Days Past Due      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable     132
Commercial and Industrial | 90 Days or More Past Due      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable 0   1,278
Commercial and Industrial | Non-PCI Loans      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable 784   1,646
Commercial and Industrial | Non-PCI Loans | Current      
Financing Receivable, Past Due [Line Items]      
Total Loans 917,211   861,785
Equipment Financing Agreements      
Financing Receivable, Past Due [Line Items]      
Total Loans 445,171   487,022
Equipment Financing Agreements | 30-59 Days Past Due      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable 5,895   6,154
Equipment Financing Agreements | 60-89 Days Past Due      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable 2,145   2,866
Equipment Financing Agreements | 90 Days or More Past Due      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable 4,287   5,760
Equipment Financing Agreements | Non-PCI Loans      
Financing Receivable, Past Due [Line Items]      
Past due loans receivable 12,327   14,780
Equipment Financing Agreements | Non-PCI Loans | Current      
Financing Receivable, Past Due [Line Items]      
Total Loans $ 432,844   $ 472,242