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BUSINESS COMBINATION - Business Combination (Parenthetical) (Detail) - USD ($) | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Feb. 27, 2015 | Dec. 31, 2015 | Dec. 31, 2017 | Dec. 31, 2016
Business Acquisition [Line Items] |  |  |  |
Business Combination Bargain Purchase After Tax Gain Recognized Amount | $ 8,200,000 |  |  |
Premium On Loans Acquired | 1,300,000 |  |  |
Liabilities Fair Value Adjustment | 800,000 |  |  |
Contractually outstanding principal and interest at acquisition |  |  | $ 196,600,000 | $ 207,300,000
Discount On Purchased Credit Impaired Loans | 13,400,000 |  |  |
Purchased Credit Impaired Loans Acquired | $ 93,300,000 |  |  |
Branches Doral | 10 |  |  |
Non Sop Unpaid Principal Balance | $ 227,900,000 |  |  |
Business Combinantion Measurement Period |  | 1 year |  |
Conversion Costs [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Business Combination Acquisition Nonrecurring Costs |  | $ 4,600,000 |  |
Interim Servicing Costs [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Business Combination Acquisition Nonrecurring Costs |  | $ 3,600,000 |  |
Deposits [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Financial Liabilities | 522,700,000 |  |  |
Property Plant And Equipment [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Financial Assets | 5,500,000 |  |  |
Cash [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Financial Assets | 217,700,000 |  |  |
Loans [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Financial Assets | $ 324,800,000 |  |  |

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- Definition Number of Branches acquired in Doral Bank Acquisition. + References No definition available. + Details
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- Definition The period over which the Corporation is allowed to retrospectively adjust the fair value of assets acquired and liabilities assumed in a business combination. + References No definition available. + Details
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- Definition Represents acquisition and conversion costs that are considered non-recurring in nature. + References No definition available. + Details
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- Definition In a business combination in which the amount of net identifiable assets acquired and liabilities assumed exceeds the aggregate consideration transferred or to be transferred (as defined), this element represents the amount of after tax gain recognized by the entity. + References No definition available. + Details
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- Definition Represents the total discount on loans acquired in accordance with the provision ASC 310-30. + References No definition available. + Details
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- Definition The amount of principal owed on the non-credit impaired portion of the loans acquired from Doral accounted under ASC 310-20. + References No definition available. + Details
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- Definition Represents the total premium on loans acquired in accordandce with the provision of ASC 310-20. + References No definition available. + Details
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- Definition Represents the outstanding principal balance of purchased credit impaired loans acquired. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition The amount of financial assets (as defined) recognized as of the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=84160947&loc=d3e2207-128464 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -URI http://asc.fasb.org/topic&trid=2134543 + Details
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- Definition The amount of financial liabilities assumed (as defined) which have been recognized as of the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=84160947&loc=d3e2207-128464 + 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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- Definition Amount of addition (reduction) to the amount at which a liability could be incurred (settled) in a current transaction between willing parties. + References No definition available. + Details
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