Annual report pursuant to Section 13 and 15(d)

Loans Receivable - Analysis of Past Due Loans, Disaggregated by Loan Class, Non-PCI (Detail)

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Loans Receivable - Analysis of Past Due Loans, Disaggregated by Loan Class, Non-PCI (Detail) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Financing Receivable, Past Due [Line Items]    
Loans receivable $ 4,880,168 $ 4,610,147
Real Estate    
Financing Receivable, Past Due [Line Items]    
Loans receivable 3,699,649 3,642,175
Real Estate | Retail    
Financing Receivable, Past Due [Line Items]    
Loans receivable 824,606 869,302
Real Estate | Hospitality    
Financing Receivable, Past Due [Line Items]    
Loans receivable 859,953 922,288
Real Estate | Other    
Financing Receivable, Past Due [Line Items]    
Loans receivable 1,610,377 1,358,432
Real Estate | Total commercial property loans    
Financing Receivable, Past Due [Line Items]    
Loans receivable 3,294,936 3,150,022
Real Estate | Construction    
Financing Receivable, Past Due [Line Items]    
Loans receivable 58,882 76,455
Real Estate | Residential/Consumer Loans    
Financing Receivable, Past Due [Line Items]    
Loans receivable 345,831 415,698
Commercial and Industrial    
Financing Receivable, Past Due [Line Items]    
Loans receivable 757,255 484,093
Leases Receivable    
Financing Receivable, Past Due [Line Items]    
Loans receivable 423,264 483,879
Non-PCI Loans    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 53,640 15,652
Current 4,826,528 4,594,496
Loans receivable 4,880,168 4,610,147
Non-PCI Loans | 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 9,026 7,497
Non-PCI Loans | 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 15,081 4,060
Non-PCI Loans | 90 Days or More Past Due    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 29,533 4,094
Non-PCI Loans | Real Estate    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 30,332 3,752
Current 3,669,317 3,638,424
Loans receivable 3,699,649 3,642,175
Non-PCI Loans | Real Estate | Retail    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable   249
Current 824,606 869,053
Loans receivable 824,606 869,302
Non-PCI Loans | Real Estate | Hospitality    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 11,076 907
Current 848,877 921,381
Loans receivable 859,953 922,288
Non-PCI Loans | Real Estate | Other    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 731 89
Current 1,609,646 1,358,344
Loans receivable 1,610,377 1,358,432
Non-PCI Loans | Real Estate | Total commercial property loans    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 11,807 1,245
Current 3,283,129 3,148,778
Loans receivable 3,294,936 3,150,022
Non-PCI Loans | Real Estate | Construction    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 12,807  
Current 46,075 76,455
Loans receivable 58,882 76,455
Non-PCI Loans | Real Estate | Residential/Consumer Loans    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 5,718 2,507
Current 340,113 413,191
Loans receivable 345,831 415,697
Non-PCI Loans | Real Estate | 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 4,693 1,504
Non-PCI Loans | Real Estate | 30-59 Days Past Due | Retail    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable   6
Non-PCI Loans | Real Estate | 30-59 Days Past Due | Hospitality    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable   907
Non-PCI Loans | Real Estate | 30-59 Days Past Due | Other    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable   51
Non-PCI Loans | Real Estate | 30-59 Days Past Due | Total commercial property loans    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable   964
Non-PCI Loans | Real Estate | 30-59 Days Past Due | Residential/Consumer Loans    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 4,693 540
Non-PCI Loans | Real Estate | 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 13,268 1,789
Non-PCI Loans | Real Estate | 60-89 Days Past Due | Retail    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable   132
Non-PCI Loans | Real Estate | 60-89 Days Past Due | Total commercial property loans    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable   132
Non-PCI Loans | Real Estate | 60-89 Days Past Due | Construction    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 12,807  
Non-PCI Loans | Real Estate | 60-89 Days Past Due | Residential/Consumer Loans    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 461 1,657
Non-PCI Loans | Real Estate | 90 Days or More Past Due    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 12,371 458
Non-PCI Loans | Real Estate | 90 Days or More Past Due | Retail    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable   111
Non-PCI Loans | Real Estate | 90 Days or More Past Due | Hospitality    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 11,076  
Non-PCI Loans | Real Estate | 90 Days or More Past Due | Other    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 731 38
Non-PCI Loans | Real Estate | 90 Days or More Past Due | Total commercial property loans    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 11,807 149
Non-PCI Loans | Real Estate | 90 Days or More Past Due | Residential/Consumer Loans    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 564 309
Non-PCI Loans | Commercial and Industrial    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 12,796 911
Current 744,459 483,183
Loans receivable 757,255 484,093
Non-PCI Loans | Commercial and Industrial | 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 282 635
Non-PCI Loans | Commercial and Industrial | 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 27 133
Non-PCI Loans | Commercial and Industrial | 90 Days or More Past Due    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 12,487 143
Non-PCI Loans | Leases Receivable    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 10,512 10,990
Current 412,752 472,889
Loans receivable 423,264 483,879
Non-PCI Loans | Leases Receivable | 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 4,051 5,358
Non-PCI Loans | Leases Receivable | 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable 1,786 2,138
Non-PCI Loans | Leases Receivable | 90 Days or More Past Due    
Financing Receivable, Past Due [Line Items]    
Past due loans receivable $ 4,675 $ 3,493