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Loans Receivable and Allowance for Loan Losses - Past Due Financing Receivables (Details) - USD ($) $ in Thousands | Jun. 30, 2019 | Dec. 31, 2018
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual loans | $ 64,934 | $ 53,286
Accruing loans past due 90 or more days | 353 | 1,529
Guaranteed portion of delinquent SBA loans excluded from Nonaccrual loans | 32,100 | 29,200
Past due loans | 65,093 | 56,936
30 to 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 20,501 | 28,467
60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 3,552 | 1,407
90 or More Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 41,040 | 27,062
Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual loans | 50,249 | 42,248
Accruing loans past due 90 or more days | 353 | 243
Past due loans | 51,006 | 47,005
Legacy Loans | 30 to 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 18,195 | 27,137
Legacy Loans | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 2,685 | 575
Legacy Loans | 90 or More Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 30,126 | 19,293
Acquired Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual loans | 14,685 | 11,038
Accruing loans past due 90 or more days | 0 | 1,286
Past due loans | 14,087 | 9,931
Acquired Loans | 30 to 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 2,306 | 1,330
Acquired Loans | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 867 | 832
Acquired Loans | 90 or More Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 10,914 | 7,769
Residential | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual loans | 0 | 0
Accruing loans past due 90 or more days | 0 | 0
Residential | Acquired Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual loans | 0 | 0
Accruing loans past due 90 or more days | 0 | 0
Commercial | Legacy Loans | Retail |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual loans | 4,682 | 5,153
Accruing loans past due 90 or more days | 0 | 0
Commercial | Legacy Loans | Hotel & motel |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual loans | 6,503 | 7,325
Accruing loans past due 90 or more days | 0 | 0
Commercial | Legacy Loans | Gas station & car wash |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual loans | 31 | 31
Accruing loans past due 90 or more days | 0 | 0
Commercial | Legacy Loans | Mixed use |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual loans | 717 | 749
Accruing loans past due 90 or more days | 0 | 0
Commercial | Legacy Loans | Industrial & warehouse |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual loans | 7,278 | 6,111
Accruing loans past due 90 or more days | 0 | 0
Commercial | Legacy Loans | Other |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual loans | 10,794 | 5,940
Accruing loans past due 90 or more days | 0 | 0
Commercial | Acquired Loans | Retail |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual loans | 5,350 | 829
Accruing loans past due 90 or more days | 0 | 0
Commercial | Acquired Loans | Hotel & motel |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual loans | 5,423 | 5,500
Accruing loans past due 90 or more days | 0 | 1,286
Commercial | Acquired Loans | Gas station & car wash |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual loans | 245 | 247
Accruing loans past due 90 or more days | 0 | 0
Commercial | Acquired Loans | Mixed use |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual loans | 370 | 1,224
Accruing loans past due 90 or more days | 0 | 0
Commercial | Acquired Loans | Industrial & warehouse |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual loans | 328 | 349
Accruing loans past due 90 or more days | 0 | 0
Commercial | Acquired Loans | Other |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual loans | 1,201 | 259
Accruing loans past due 90 or more days | 0 | 0
Construction | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual loans | 0 | 0
Accruing loans past due 90 or more days | 0 | 0
Construction | Acquired Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual loans | 0 | 0
Accruing loans past due 90 or more days | 0 | 0
Commercial business | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual loans | 15,318 | 14,837
Accruing loans past due 90 or more days | 0 | 0
Past due loans | 12,242 | 12,938
Commercial business | Legacy Loans | 30 to 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 1,450 | 5,500
Commercial business | Legacy Loans | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 121 | 435
Commercial business | Legacy Loans | 90 or More Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 10,671 | 7,003
Commercial business | Acquired Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual loans | 958 | 1,632
Accruing loans past due 90 or more days | 0 | 0
Past due loans | 321 | 1,263
Commercial business | Acquired Loans | 30 to 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 84 | 397
Commercial business | Acquired Loans | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 | 613
Commercial business | Acquired Loans | 90 or More Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 237 | 253
Trade finance | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual loans | 2,721 | 1,661
Accruing loans past due 90 or more days | 0 | 0
Past due loans | 2,721 | 2,697
Trade finance | Legacy Loans | 30 to 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 | 1,036
Trade finance | Legacy Loans | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 | 0
Trade finance | Legacy Loans | 90 or More Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 2,721 | 1,661
Trade finance | Acquired Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual loans | 0 | 0
Accruing loans past due 90 or more days | 0 | 0
Past due loans | 0 | 0
Trade finance | Acquired Loans | 30 to 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 | 0
Trade finance | Acquired Loans | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 | 0
Trade finance | Acquired Loans | 90 or More Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 | 0
Consumer and other | Legacy Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual loans | 2,205 | 441
Accruing loans past due 90 or more days | 353 | 243
Past due loans | 7,767 | 16,800
Consumer and other | Legacy Loans | 30 to 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 5,721 | 16,413
Consumer and other | Legacy Loans | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 250 | 140
Consumer and other | Legacy Loans | 90 or More Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 1,796 | 247
Consumer and other | Acquired Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Nonaccrual loans | 810 | 998
Accruing loans past due 90 or more days | 0 | 0
Past due loans | 2,314 | 334
Consumer and other | Acquired Loans | 30 to 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 1,337 | 0
Consumer and other | Acquired Loans | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 709 | 0
Consumer and other | Acquired Loans | 90 or More Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 268 | 334
Real estate | Legacy Loans | Residential |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 | 0
Real estate | Legacy Loans | Residential | 30 to 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 | 0
Real estate | Legacy Loans | Residential | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 | 0
Real estate | Legacy Loans | Residential | 90 or More Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 | 0
Real estate | Legacy Loans | Construction |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 | 0
Real estate | Legacy Loans | Construction | 30 to 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 | 0
Real estate | Legacy Loans | Construction | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 | 0
Real estate | Legacy Loans | Construction | 90 or More Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 | 0
Real estate | Legacy Loans | Retail | Commercial |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 1,108 | 1,542
Real estate | Legacy Loans | Retail | Commercial | 30 to 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 | 733
Real estate | Legacy Loans | Retail | Commercial | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 811 | 0
Real estate | Legacy Loans | Retail | Commercial | 90 or More Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 297 | 809
Real estate | Legacy Loans | Hotel & motel | Commercial |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 5,743 | 5,368
Real estate | Legacy Loans | Hotel & motel | Commercial | 30 to 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 1,716 | 153
Real estate | Legacy Loans | Hotel & motel | Commercial | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 347 | 0
Real estate | Legacy Loans | Hotel & motel | Commercial | 90 or More Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 3,680 | 5,215
Real estate | Legacy Loans | Gas station & car wash | Commercial |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 689 | 31
Real estate | Legacy Loans | Gas station & car wash | Commercial | 30 to 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 658 | 0
Real estate | Legacy Loans | Gas station & car wash | Commercial | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 | 0
Real estate | Legacy Loans | Gas station & car wash | Commercial | 90 or More Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 31 | 31
Real estate | Legacy Loans | Mixed use | Commercial |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 358 | 0
Real estate | Legacy Loans | Mixed use | Commercial | 30 to 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 | 0
Real estate | Legacy Loans | Mixed use | Commercial | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 174 | 0
Real estate | Legacy Loans | Mixed use | Commercial | 90 or More Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 184 | 0
Real estate | Legacy Loans | Industrial & warehouse | Commercial |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 4,310 | 3,387
Real estate | Legacy Loans | Industrial & warehouse | Commercial | 30 to 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 74 | 1,465
Real estate | Legacy Loans | Industrial & warehouse | Commercial | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 849 | 0
Real estate | Legacy Loans | Industrial & warehouse | Commercial | 90 or More Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 3,387 | 1,922
Real estate | Legacy Loans | Other | Commercial |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 16,068 | 4,242
Real estate | Legacy Loans | Other | Commercial | 30 to 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 8,576 | 1,837
Real estate | Legacy Loans | Other | Commercial | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 133 | 0
Real estate | Legacy Loans | Other | Commercial | 90 or More Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 7,359 | 2,405
Real estate | Acquired Loans | Residential |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 | 0
Real estate | Acquired Loans | Residential | 30 to 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 | 0
Real estate | Acquired Loans | Residential | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 | 0
Real estate | Acquired Loans | Residential | 90 or More Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 | 0
Real estate | Acquired Loans | Construction |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 | 0
Real estate | Acquired Loans | Construction | 30 to 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 | 0
Real estate | Acquired Loans | Construction | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 | 0
Real estate | Acquired Loans | Construction | 90 or More Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 | 0
Real estate | Acquired Loans | Retail | Commercial |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 5,039 | 949
Real estate | Acquired Loans | Retail | Commercial | 30 to 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 | 347
Real estate | Acquired Loans | Retail | Commercial | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 38 | 0
Real estate | Acquired Loans | Retail | Commercial | 90 or More Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 5,001 | 602
Real estate | Acquired Loans | Hotel & motel | Commercial |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 4,462 | 5,206
Real estate | Acquired Loans | Hotel & motel | Commercial | 30 to 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 | 0
Real estate | Acquired Loans | Hotel & motel | Commercial | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 | 0
Real estate | Acquired Loans | Hotel & motel | Commercial | 90 or More Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 4,462 | 5,206
Real estate | Acquired Loans | Gas station & car wash | Commercial |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 221 | 375
Real estate | Acquired Loans | Gas station & car wash | Commercial | 30 to 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 | 154
Real estate | Acquired Loans | Gas station & car wash | Commercial | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 | 0
Real estate | Acquired Loans | Gas station & car wash | Commercial | 90 or More Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 221 | 221
Real estate | Acquired Loans | Mixed use | Commercial |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 194 | 1,141
Real estate | Acquired Loans | Mixed use | Commercial | 30 to 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 | 107
Real estate | Acquired Loans | Mixed use | Commercial | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 | 0
Real estate | Acquired Loans | Mixed use | Commercial | 90 or More Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 194 | 1,034
Real estate | Acquired Loans | Industrial & warehouse | Commercial |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 542 | 261
Real estate | Acquired Loans | Industrial & warehouse | Commercial | 30 to 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 94 | 142
Real estate | Acquired Loans | Industrial & warehouse | Commercial | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 120 | 0
Real estate | Acquired Loans | Industrial & warehouse | Commercial | 90 or More Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 328 | 119
Real estate | Acquired Loans | Other | Commercial |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 994 | 402
Real estate | Acquired Loans | Other | Commercial | 30 to 59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 791 | 183
Real estate | Acquired Loans | Other | Commercial | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | 0 | 219
Real estate | Acquired Loans | Other | Commercial | 90 or More Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Past due loans | $ 203 | $ 0

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