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LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Carrying Amount of Purchased Credit Impaired Loans and Leases (Detail) - USD ($) $ in Thousands | Sep. 30, 2017 | Dec. 31, 2016
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Certain Loans Acquired in Transfer Not Accounted for as Debt Securities [Abstract] |  |
Outstanding Balance | $ 0 | $ 164,280
Carrying Amount | 0 | 141,826
Commercial | Commercial and industrial |  |
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities [Abstract] |  |
Outstanding Balance | 0 | 5,029
Carrying Amount | 0 | 4,760
Commercial | Commercial real estate |  |
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities [Abstract] |  |
Outstanding Balance | 0 | 1,613
Carrying Amount | 0 | 1,182
Commercial | SBA |  |
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities [Abstract] |  |
Outstanding Balance | 0 | 3,771
Carrying Amount | 0 | 2,672
Consumer | Single family residential mortgage |  |
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities [Abstract] |  |
Outstanding Balance | 0 | 153,867
Carrying Amount | $ 0 | $ 133,212

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- Definition The recorded balance, net of any applicable reductions (for example, unamortized accretable yield and allowance for loan losses). This relates to loans not accounted for debt securities with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=82894903&loc=d3e15032-111544 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=82894507&loc=d3e13503-111538 + Details
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- Definition The undiscounted sum of all amounts, including amounts deemed principal, interest, fees, penalties, and other under the loan, owed to the investor at the reporting date, whether or not currently due and whether or not any such amounts have been written or charged off by the investor. This relates to loans not accounted for as debt securities, with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=82894507&loc=d3e13503-111538 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=82894903&loc=d3e15032-111544 + Details
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