Quarterly report pursuant to Section 13 or 15(d)

Loans - Loans by Vintage Year and Payment Performance (Detail)

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Loans - Loans by Vintage Year and Payment Performance (Detail) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Financing Receivable, Credit Quality Indicator [Line Items]    
2024 $ 350,251 $ 1,447,774
2024 - YTD gross   178
2024 - YTD net   178
2023 1,193,962 1,766,797
2023 - YTD gross 19 3,961
2023 - YTD Net 19 3,749
2022 1,722,619 1,241,680
2022 - YTD gross 1,490 3,267
2022 - YTD net 1,333 2,851
2021 1,201,596 647,431
2021 - YTD gross 400 797
2021- YTD net 310 647
2020 622,989 413,856
2020 - YTD gross 170 909
2020 - YTD net 159 351
Prior 741,109 380,747
Prior - Gross 44 858
Prior - Net (191) (6,823)
Revolving Loans Amortized Cost Basis 345,314 284,149
Revolving Loans Amortized Cost Basis - YTD gross   6,120
Revolving Loans Amortized Cost Basis - YTD net (34) 6,090
Loans receivable 6,177,840 6,182,434
Loans receivable gross chargeoff 2,123 16,090
Loans receivable net chargeoff 1,596 7,043
Performing    
Financing Receivable, Credit Quality Indicator [Line Items]    
2024 348,678 1,445,218
2023 1,193,116 1,762,626
2022 1,718,867 1,239,585
2021 1,199,867 647,031
2020 622,773 413,386
Prior 739,128 379,813
Revolving Loans Amortized Cost Basis 341,387 279,301
Loans receivable 6,163,816 6,166,960
Nonperforming    
Financing Receivable, Credit Quality Indicator [Line Items]    
2024 1,573 2,556
2023 846 4,171
2022 3,752 2,095
2021 1,729 400
2020 216 470
Prior 1,981 934
Revolving Loans Amortized Cost Basis 3,927 4,848
Loans receivable 14,024 15,474
Residential    
Financing Receivable, Credit Quality Indicator [Line Items]    
Loans receivable   962,661
Real Estate    
Financing Receivable, Credit Quality Indicator [Line Items]    
2024 217,316 1,053,519
2023 896,885 1,367,611
2022 1,353,404 1,053,915
2021 1,035,364 591,276
2021 - YTD gross   411
2021- YTD net   403
2020 585,699 384,573
2020 - YTD net (5)  
Prior 705,994 364,339
Prior - Gross   216
Prior - Net (41) (88)
Revolving Loans Amortized Cost Basis 54,377 37,167
Loans receivable 4,849,039 4,852,400
Loans receivable gross chargeoff   627
Loans receivable net chargeoff (46) 315
Real Estate | Performing    
Financing Receivable, Credit Quality Indicator [Line Items]    
2024 215,743 1,051,684
2023 896,885 1,367,611
2022 1,353,279 1,053,765
2021 1,035,364 591,276
2020 585,699 384,492
Prior 704,638 363,555
Revolving Loans Amortized Cost Basis 54,377 37,167
Loans receivable 4,845,985 4,849,550
Real Estate | Nonperforming    
Financing Receivable, Credit Quality Indicator [Line Items]    
2024 1,573 1,835
2022 125 150
2020   81
Prior 1,356 784
Loans receivable 3,054 2,850
Real Estate | Total commercial property loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
2024 115,282 691,284
2023 614,621 991,899
2022 983,439 866,991
2021 850,715 578,620
2021 - YTD gross   411
2021- YTD net   403
2020 573,189 384,356
2020 - YTD net (5)  
Prior 588,865 244,602
Prior - Gross   216
Prior - Net (41) (81)
Revolving Loans Amortized Cost Basis 48,350 31,642
Loans receivable 3,774,461 3,789,394
Loans receivable gross chargeoff   627
Loans receivable net chargeoff (46) 322
Real Estate | Total commercial property loans | Performing    
Financing Receivable, Credit Quality Indicator [Line Items]    
2024 113,709 689,449
2023 614,621 991,899
2022 983,314 866,841
2021 850,715 578,620
2020 573,189 384,275
Prior 587,509 243,819
Revolving Loans Amortized Cost Basis 48,350 31,642
Loans receivable 3,771,407 3,786,545
Real Estate | Total commercial property loans | Nonperforming    
Financing Receivable, Credit Quality Indicator [Line Items]    
2024 1,573 1,835
2022 125 150
2020   81
Prior 1,356 783
Loans receivable 3,054 2,849
Real Estate | Construction    
Financing Receivable, Credit Quality Indicator [Line Items]    
2024 49,902 72,039
2023 26,003  
2022   28,306
2021 28,311  
Loans receivable 104,216 100,345
Real Estate | Construction | Performing    
Financing Receivable, Credit Quality Indicator [Line Items]    
2024 49,902 72,039
2023 26,003  
2022   28,306
2021 28,311  
Loans receivable 104,216 100,345
Real Estate | Residential    
Financing Receivable, Credit Quality Indicator [Line Items]    
2024 52,132 290,196
2023 256,261 375,712
2022 369,965 158,618
2021 156,338 12,656
2020 12,510 217
Prior 117,129 119,737
Prior - Net   (7)
Revolving Loans Amortized Cost Basis 6,027 5,525
Loans receivable 970,362 962,661
Loans receivable net chargeoff   (7)
Real Estate | Residential | Performing    
Financing Receivable, Credit Quality Indicator [Line Items]    
2024 52,132 290,196
2023 256,261 375,712
2022 369,965 158,618
2021 156,338 12,656
2020 12,510 217
Prior 117,129 119,736
Revolving Loans Amortized Cost Basis 6,027 5,525
Loans receivable 970,362 962,660
Real Estate | Residential | Nonperforming    
Financing Receivable, Credit Quality Indicator [Line Items]    
Prior   1
Loans receivable   1
Commercial and Industrial    
Financing Receivable, Credit Quality Indicator [Line Items]    
2024 97,417 178,193
2023 98,018 183,787
2023 - YTD gross   17
2023 - YTD Net   5
2022 174,918 84,198
2022 - YTD gross 126  
2022 - YTD net 126 (7)
2021 76,197 31,450
2020 17,467 10,050
2020 - YTD gross   110
2020 - YTD net   101
Prior 19,897 13,159
Prior - Gross 29 410
Prior - Net 5 (6,621)
Revolving Loans Amortized Cost Basis 290,937 246,982
Revolving Loans Amortized Cost Basis - YTD gross   6,120
Revolving Loans Amortized Cost Basis - YTD net (34) 6,090
Loans receivable 774,851 747,819
Loans receivable gross chargeoff 155 6,657
Loans receivable net chargeoff 97 (432)
Commercial and Industrial | Performing    
Financing Receivable, Credit Quality Indicator [Line Items]    
2024 97,417 177,864
2023 98,018 183,787
2022 174,904 84,198
2021 76,197 31,415
2020 17,467 10,050
Prior 19,809 13,066
Revolving Loans Amortized Cost Basis 287,010 242,134
Loans receivable 770,822 742,514
Commercial and Industrial | Nonperforming    
Financing Receivable, Credit Quality Indicator [Line Items]    
2024   329
2022 14  
2021   35
Prior 88 93
Revolving Loans Amortized Cost Basis 3,927 4,848
Loans receivable 4,029 5,305
Equipment Financing Agreements    
Financing Receivable, Credit Quality Indicator [Line Items]    
2024 35,518 216,062
2024 - YTD gross   178
2024 - YTD net   178
2023 199,059 215,399
2023 - YTD gross 19 3,944
2023 - YTD Net 19 3,744
2022 194,297 103,567
2022 - YTD gross 1,364 3,267
2022 - YTD net 1,207 2,858
2021 90,035 24,705
2021 - YTD gross 400 386
2021- YTD net 310 244
2020 19,823 19,233
2020 - YTD gross 170 799
2020 - YTD net 164 250
Prior 15,218 3,249
Prior - Gross 15 232
Prior - Net (155) (114)
Loans receivable 553,950 582,215
Loans receivable gross chargeoff 1,968 8,806
Loans receivable net chargeoff 1,545 7,160
Equipment Financing Agreements | Performing    
Financing Receivable, Credit Quality Indicator [Line Items]    
2024 35,518 215,670
2023 198,213 211,228
2022 190,684 101,622
2021 88,306 24,340
2020 19,607 18,844
Prior 14,681 3,192
Loans receivable 547,009 574,896
Equipment Financing Agreements | Nonperforming    
Financing Receivable, Credit Quality Indicator [Line Items]    
2024   392
2023 846 4,171
2022 3,613 1,945
2021 1,729 365
2020 216 389
Prior 537 57
Loans receivable $ 6,941 $ 7,319