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Loans and Leases Receivable and Allowance for Credit Losses on Loans and Leases - Performance Status (Detail) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | $ 9,018,298 | $ 7,575,368
Threshold period past due | 30 days |
Loans receivable, PPP | $ 3,250,008 | 4,561,365
Purchased-credit-impaired loans | 9,900 | 13,400
Small Business Administration (SBA), CARES Act, Paycheck Protection Program |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 3,300,000 | 4,600,000
Total past due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 68,433 | 62,045
30 to 59 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 18,374 | 21,633
30 to 59 Days Past Due | Small Business Administration (SBA), CARES Act, Paycheck Protection Program |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 6,300 |
60 to 89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 8,654 | 13,812
90 Days Or More Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 41,405 | 26,600
Loans and leases not past due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 8,949,865 | 7,513,323
Loans and leases not past due | Small Business Administration (SBA), CARES Act, Paycheck Protection Program |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable |  | 4,600,000
Financial Asset, Greater Than 60 Days Past Due | Small Business Administration (SBA), CARES Act, Paycheck Protection Program |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 21,800 |
Multi-family |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 1,486,308 | 1,761,301
Multi-family | Total past due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 22,624 | 24,324
Multi-family | 30 to 59 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 1,682 | 4,193
Multi-family | 60 to 89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 2,707 | 5,224
Multi-family | 90 Days Or More Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 18,235 | 14,907
Multi-family | Loans and leases not past due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 1,463,684 | 1,736,977
Commercial and industrial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 3,424,783 | 2,289,441
Commercial and industrial | Total past due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 8,117 | 6,610
Commercial and industrial | 30 to 59 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 2,093 | 2,257
Commercial and industrial | 60 to 89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 95 | 1,274
Commercial and industrial | 90 Days Or More Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 5,929 | 3,079
Commercial and industrial | Loans and leases not past due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 3,416,666 | 2,282,831
Commercial real estate owner occupied |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 654,922 | 572,338
Commercial real estate owner occupied | Total past due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 1,591 | 4,558
Commercial real estate owner occupied | 30 to 59 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 287 | 864
Commercial real estate owner occupied | 60 to 89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 0 | 1,324
Commercial real estate owner occupied | 90 Days Or More Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 1,304 | 2,370
Commercial real estate owner occupied | Loans and leases not past due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 653,331 | 567,780
Commercial real estate non-owner occupied |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 1,121,238 | 1,196,564
Commercial real estate non-owner occupied | Total past due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 2,815 | 2,416
Commercial real estate non-owner occupied | 30 to 59 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 0 | 0
Commercial real estate non-owner occupied | 60 to 89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 0 | 60
Commercial real estate non-owner occupied | 90 Days Or More Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 2,815 | 2,356
Commercial real estate non-owner occupied | Loans and leases not past due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 1,118,423 | 1,194,148
Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 198,981 | 140,905
Construction | Total past due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 0 | 0
Construction | 30 to 59 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 0 | 0
Construction | 60 to 89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 0 | 0
Construction | 90 Days Or More Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 0 | 0
Construction | Loans and leases not past due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 198,981 | 140,905
Residential real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 334,730 | 317,170
Residential real estate | Total past due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 9,834 | 10,323
Residential real estate | 30 to 59 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 4,655 | 6,640
Residential real estate | 60 to 89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 789 | 1,827
Residential real estate | 90 Days Or More Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 4,390 | 1,856
Residential real estate | Loans and leases not past due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 324,896 | 306,847
Manufactured housing |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 52,861 | 62,243
Manufactured housing | Total past due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 8,025 | 4,142
Manufactured housing | 30 to 59 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 2,308 | 1,518
Manufactured housing | 60 to 89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 768 | 673
Manufactured housing | 90 Days Or More Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 4,949 | 1,951
Manufactured housing | Loans and leases not past due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 44,836 | 58,101
Installment |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 1,744,475 | 1,235,406
Installment | Total past due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 15,427 | 9,672
Installment | 30 to 59 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 7,349 | 6,161
Installment | 60 to 89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 4,295 | 3,430
Installment | 90 Days Or More Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | 3,783 | 81
Installment | Loans and leases not past due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases receivable | $ 1,729,048 | $ 1,225,734

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