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Loans Receivable and Allowance for Loan Losses - Troubled Debt Restructurings on Financing Receivables (Details) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2017 USD ($) loan | Mar. 31, 2016 USD ($) loan | Dec. 31, 2016 USD ($) loan
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | $ 66,105,000 |  | $ 70,870,000
Number of modified contracts | loan | 6 | 8 |
Troubled Debt Restructuring, By Loan Class |  |  |
Pre-Modification | $ 2,905,000 | $ 13,317,000 |
Post-Modification | $ 2,358,000 | $ 8,654,000 |
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default |  |  |
Number of Loans | loan | 2 | 9 |
Balance | $ 113,000 | $ 3,063,000 |
Specific reserves | 2,000 | 2,100,000 |
Specific reserves for the TDRs | 10,000 | 144,000 |
Charge offs | 0 | $ 30,000 |
Specific reserves allocated to TDRs | 3,800,000 |  | 5,300,000
Payment concession |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | 20,255,000 |  | 22,521,000
Troubled Debt Restructuring Concession, Type, Maturity/ Amortization Concession [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | 32,186,000 |  | 33,641,000
Rate concession |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | 13,664,000 |  | 14,708,000
TDR on accrual |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | 48,984,000 |  | 48,874,000
TDR on accrual | Payment concession |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | 16,482,000 |  | 16,387,000
TDR on accrual | Troubled Debt Restructuring Concession, Type, Maturity/ Amortization Concession [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | 24,770,000 |  | 23,911,000
TDR on accrual | Rate concession |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | 7,732,000 |  | 8,576,000
TDR on non-accrual |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | 17,121,000 |  | 21,996,000
TDR on non-accrual | Payment concession |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | 3,773,000 |  | 6,134,000
TDR on non-accrual | Troubled Debt Restructuring Concession, Type, Maturity/ Amortization Concession [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | 7,416,000 |  | 9,730,000
TDR on non-accrual | Rate concession |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | $ 5,932,000 |  | 6,132,000
Commercial & industrial | TDR on accrual |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured |  |  | $ 25,054,000
Number of modified contracts | loan | 20 |  | 20
Real estate | Commercial & industrial | TDR on accrual |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | $ 24,619,000 |  | $ 25,054,000
Real estate | Commercial & industrial | TDR on accrual | Payment concession |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | 16,249,000 |  | 16,358,000
Real estate | Commercial & industrial | TDR on accrual | Troubled Debt Restructuring Concession, Type, Maturity/ Amortization Concession [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | 2,302,000 |  | 1,840,000
Real estate | Commercial & industrial | TDR on accrual | Rate concession |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | 6,068,000 |  | 6,856,000
Real estate | Commercial & industrial | TDR on non-accrual |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | 9,844,000 |  | 11,320,000
Real estate | Commercial & industrial | TDR on non-accrual | Payment concession |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | 2,503,000 |  | 4,417,000
Real estate | Commercial & industrial | TDR on non-accrual | Troubled Debt Restructuring Concession, Type, Maturity/ Amortization Concession [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | 1,774,000 |  | 1,313,000
Real estate | Commercial & industrial | TDR on non-accrual | Rate concession |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | 5,567,000 |  | 5,590,000
Commercial business | TDR on accrual |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | $ 19,781,000 |  | $ 19,165,000
Number of modified contracts | loan | 24 |  | 23
Commercial business | TDR on accrual | Payment concession |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | $ 233,000 |  | $ 29,000
Commercial business | TDR on accrual | Troubled Debt Restructuring Concession, Type, Maturity/ Amortization Concession [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | 17,969,000 |  | 17,471,000
Commercial business | TDR on accrual | Rate concession |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | 1,579,000 |  | 1,665,000
Commercial business | TDR on non-accrual |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | 6,424,000 |  | 8,234,000
Commercial business | TDR on non-accrual | Payment concession |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | 1,270,000 |  | 1,717,000
Commercial business | TDR on non-accrual | Troubled Debt Restructuring Concession, Type, Maturity/ Amortization Concession [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | 4,789,000 |  | 6,130,000
Commercial business | TDR on non-accrual | Rate concession |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | 365,000 |  | 387,000
Trade Finance and Other | TDR on accrual |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | 4,584,000 |  | 4,655,000
Trade Finance and Other | TDR on accrual | Payment concession |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | 0 |  | 0
Trade Finance and Other | TDR on accrual | Troubled Debt Restructuring Concession, Type, Maturity/ Amortization Concession [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | 4,499,000 |  | 4,600,000
Trade Finance and Other | TDR on accrual | Rate concession |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | 85,000 |  | 55,000
Trade Finance and Other | TDR on non-accrual |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | 853,000 |  | 2,442,000
Trade Finance and Other | TDR on non-accrual | Payment concession |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | 0 |  | 0
Trade Finance and Other | TDR on non-accrual | Troubled Debt Restructuring Concession, Type, Maturity/ Amortization Concession [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | 853,000 |  | 2,287,000
Trade Finance and Other | TDR on non-accrual | Rate concession |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | 0 |  | 155,000
Consumer and other | TDR on accrual |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Troubled debt restructured | $ 4,584,000 |  | $ 4,655,000
Number of modified contracts | loan | 24 |  | 19
Legacy |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Number of modified contracts | loan | 3 | 7 |
Troubled Debt Restructuring, By Loan Class |  |  |
Pre-Modification | $ 2,163,000 | $ 13,287,000 |
Post-Modification | $ 1,700,000 | $ 8,625,000 |
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default |  |  |
Number of Loans | loan | 1 | 8 |
Balance | $ 102,000 | $ 3,001,000 |
Legacy | Real estate |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Number of modified contracts | loan | 0 | 0 |
Troubled Debt Restructuring, By Loan Class |  |  |
Pre-Modification | $ 0 | $ 0 |
Post-Modification | $ 0 | $ 0 |
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default |  |  |
Number of Loans | loan | 0 | 0 |
Balance | $ 0 | $ 0 |
Legacy | Real estate | Troubled Debt Restructuring Concession, Type, Maturity/ Amortization Concession [Member] |  |  |
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default |  |  |
Number of Loans |  | 2 |
Balance |  | $ 729,000 |
Legacy | Real estate | Retail |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Number of modified contracts | loan | 0 | 0 |
Troubled Debt Restructuring, By Loan Class |  |  |
Pre-Modification | $ 0 | $ 0 |
Post-Modification | $ 0 | $ 0 |
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default |  |  |
Number of Loans | loan | 0 | 0 |
Balance | $ 0 | $ 0 |
Legacy | Real estate | Hotel & motel |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Number of modified contracts | loan | 0 | 0 |
Troubled Debt Restructuring, By Loan Class |  |  |
Pre-Modification | $ 0 | $ 0 |
Post-Modification | $ 0 | $ 0 |
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default |  |  |
Number of Loans | loan | 0 | 0 |
Balance | $ 0 | $ 0 |
Legacy | Real estate | Gas station & car wash |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Number of modified contracts | loan | 0 | 0 |
Troubled Debt Restructuring, By Loan Class |  |  |
Pre-Modification | $ 0 | $ 0 |
Post-Modification | $ 0 | $ 0 |
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default |  |  |
Number of Loans | loan | 0 | 2 |
Balance | $ 0 | $ 729,000 |
Legacy | Real estate | Mixed use |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Number of modified contracts | loan | 0 | 0 |
Troubled Debt Restructuring, By Loan Class |  |  |
Pre-Modification | $ 0 | $ 0 |
Post-Modification | $ 0 | $ 0 |
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default |  |  |
Number of Loans | loan | 0 | 0 |
Balance | $ 0 | $ 0 |
Legacy | Real estate | Industrial & warehouse |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Number of modified contracts | loan | 0 | 0 |
Troubled Debt Restructuring, By Loan Class |  |  |
Pre-Modification | $ 0 | $ 0 |
Post-Modification | $ 0 | $ 0 |
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default |  |  |
Number of Loans | loan | 0 | 0 |
Balance | $ 0 | $ 0 |
Legacy | Real estate | Other |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Number of modified contracts | loan | 1 | 0 |
Troubled Debt Restructuring, By Loan Class |  |  |
Pre-Modification | $ 482,000 | $ 0 |
Post-Modification | $ 482,000 | $ 0 |
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default |  |  |
Number of Loans | loan | 0 | 0 |
Balance | $ 0 | $ 0 |
Legacy | Commercial business |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Number of modified contracts | loan | 2 | 6 |
Troubled Debt Restructuring, By Loan Class |  |  |
Pre-Modification | $ 1,681,000 | $ 11,088,000 |
Post-Modification | $ 1,218,000 | $ 7,039,000 |
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default |  |  |
Number of Loans | loan | 1 | 6 |
Balance | $ 102,000 | $ 2,272,000 |
Legacy | Commercial business | Payment concession |  |  |
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default |  |  |
Number of Loans | 1 | 4 |
Balance | $ 102,000 | $ 2,022,000 |
Legacy | Commercial business | Troubled Debt Restructuring Concession, Type, Maturity/ Amortization Concession [Member] |  |  |
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default |  |  |
Number of Loans |  | 2 |
Balance |  | $ 249,000 |
Legacy | Trade finance |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Number of modified contracts | loan | 0 | 1 |
Troubled Debt Restructuring, By Loan Class |  |  |
Pre-Modification | $ 0 | $ 2,199,000 |
Post-Modification | $ 0 | $ 1,586,000 |
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default |  |  |
Number of Loans | loan | 0 | 0 |
Balance | $ 0 | $ 0 |
Legacy | Consumer And Other Portfolio Segment [Member] |  |  |
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default |  |  |
Number of Loans | loan | 0 | 0 |
Balance | $ 0 | $ 0 |
Legacy | Consumer and other |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Number of modified contracts | loan | 0 | 0 |
Troubled Debt Restructuring, By Loan Class |  |  |
Pre-Modification | $ 0 | $ 0 |
Post-Modification | $ 0 | $ 0 |
Acquired |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Number of modified contracts | loan | 3 | 1 |
Troubled Debt Restructuring, By Loan Class |  |  |
Pre-Modification | $ 742,000 | $ 30,000 |
Post-Modification | $ 658,000 | $ 29,000 |
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default |  |  |
Number of Loans | loan | 1 | 1 |
Balance | $ 11,000 | $ 62,000 |
Charge offs | $ 100,000 | $ 0 |
Acquired | Payment concession |  |  |
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default |  |  |
Number of Loans | loan |  | 1 |
Balance |  | $ 62,000 |
Acquired | Real estate |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Number of modified contracts | loan | 0 | 0 |
Troubled Debt Restructuring, By Loan Class |  |  |
Pre-Modification | $ 0 | $ 0 |
Post-Modification | $ 0 | $ 0 |
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default |  |  |
Number of Loans | loan | 0 | 0 |
Balance | $ 0 | $ 0 |
Acquired | Real estate | Retail |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Number of modified contracts | loan | 0 | 0 |
Troubled Debt Restructuring, By Loan Class |  |  |
Pre-Modification | $ 0 | $ 0 |
Post-Modification | $ 0 | $ 0 |
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default |  |  |
Number of Loans | loan | 0 | 0 |
Balance | $ 0 | $ 0 |
Acquired | Real estate | Hotel & motel |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Number of modified contracts | loan | 0 | 0 |
Troubled Debt Restructuring, By Loan Class |  |  |
Pre-Modification | $ 0 | $ 0 |
Post-Modification | $ 0 | $ 0 |
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default |  |  |
Number of Loans | loan | 0 | 0 |
Balance | $ 0 | $ 0 |
Acquired | Real estate | Gas station & car wash |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Number of modified contracts | loan | 0 | 0 |
Troubled Debt Restructuring, By Loan Class |  |  |
Pre-Modification | $ 0 | $ 0 |
Post-Modification | $ 0 | $ 0 |
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default |  |  |
Number of Loans | loan | 0 | 0 |
Balance | $ 0 | $ 0 |
Acquired | Real estate | Mixed use |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Number of modified contracts | loan | 0 | 0 |
Troubled Debt Restructuring, By Loan Class |  |  |
Pre-Modification | $ 0 | $ 0 |
Post-Modification | $ 0 | $ 0 |
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default |  |  |
Number of Loans | loan | 0 | 1 |
Balance | $ 0 | $ 62,000 |
Acquired | Real estate | Industrial & warehouse |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Number of modified contracts | loan | 0 | 0 |
Troubled Debt Restructuring, By Loan Class |  |  |
Pre-Modification | $ 0 | $ 0 |
Post-Modification | $ 0 | $ 0 |
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default |  |  |
Number of Loans | loan | 0 | 0 |
Balance | $ 0 | $ 0 |
Acquired | Real estate | Other |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Number of modified contracts | loan | 1 | 0 |
Troubled Debt Restructuring, By Loan Class |  |  |
Pre-Modification | $ 93,000 | $ 0 |
Post-Modification | $ 97,000 | $ 0 |
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default |  |  |
Number of Loans | loan | 0 | 0 |
Balance | $ 0 | $ 0 |
Acquired | Commercial business |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Number of modified contracts | loan | 2 | 0 |
Troubled Debt Restructuring, By Loan Class |  |  |
Pre-Modification | $ 649,000 | $ 0 |
Post-Modification | $ 561,000 | $ 0 |
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default |  |  |
Number of Loans | loan | 1 | 0 |
Balance | $ 11,000 | $ 0 |
Acquired | Commercial business | Payment concession |  |  |
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default |  |  |
Balance | $ 11,000 |  |
Acquired | Trade finance |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Number of modified contracts | loan | 0 | 0 |
Troubled Debt Restructuring, By Loan Class |  |  |
Pre-Modification | $ 0 | $ 0 |
Post-Modification | $ 0 | $ 0 |
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default |  |  |
Number of Loans | loan | 0 | 0 |
Balance | $ 0 | $ 0 |
Acquired | Consumer And Other Portfolio Segment [Member] |  |  |
Troubled Debt Restructuring, By Loan Class, Modified And Subsequent Payment Default |  |  |
Number of Loans | loan | 0 | 0 |
Balance | $ 0 | $ 0 |
Acquired | Consumer and other |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Number of modified contracts | loan | 0 | 1 |
Troubled Debt Restructuring, By Loan Class |  |  |
Pre-Modification | $ 0 | $ 30,000 |
Post-Modification | $ 0 | $ 29,000 |

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- Definition Reflects the amount of the write-down related to a troubled debt restructuring, within the previous 12 months, for which there was a payment default. + References No definition available. + Details
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- Definition Pre-modification amount of investment in financing receivables modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953676-111524 + Details
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- Definition The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=25495931&loc=d3e18845-111554 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Recorded Investment -URI http://asc.fasb.org/extlink&oid=65880944 + Details
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- Definition Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953682-111524 + Details
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- Definition Amount of investment related to financing receivables modified by troubled debt restructurings within the previous 12 months, for which there was a payment default. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953682-111524 + Details
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