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ALLOWANCE FOR LOAN AND LEASE LOSSES - Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2018 | Jun. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017 | Dec. 31, 2017
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |  |  |
Allowance For Loan And Lease Losses Write Offs | $ 36,312 |  | $ 19,369 | $ 93,368 | $ 107,751 |
Hurricane [Member] |  |  |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |  |  |
Financing Receivable Allowance For Credit Losses | 24,900 |  | 66,500 | 24,900 | 66,500 | $ 55,600
Net Loan Loss Reserve Release | 2,800 |  |  | 11,200 |  |
Consumer Portfolio Segment [Member] |  |  |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |  |  |
Allowance for Loan and Lease Losses, Period Increase (Decrease) |  | $ 1,600 |  |  |  |
Allowance For Loan And Lease Losses Write Offs | 13,712 |  | 11,141 | 38,111 | 33,386 |
Consumer Portfolio Segment [Member] | Hurricane [Member] |  |  |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |  |  |
Allowance For Loan And Lease Losses Write Offs |  |  |  | 10,900 |  |
Construction Loans [Member] |  |  |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |  |  |
Allowance For Loan And Lease Losses Write Offs | 2,192 |  | $ 47 | 8,187 | $ 705 |
Construction Loans [Member] | Commercial Portfolio Segment [Member] |  |  |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |  |  |
Allowance for Loan and Lease Losses, Period Increase (Decrease) |  | $ (1,600) |  |  |  |
Floor Plan Loans [Member] |  |  |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |  |  |
Financing Receivable Allowance For Credit Losses | $ 400 |  |  | $ 400 |  | $ 700

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- Definition Hurricane reserve release due to updated assesments of financial performance + References No definition available. + Details
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- Definition Amount of increase (decrease) of allowance reserve for credit loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition A valuation allowance for financing receivables that are expected to be uncollectible. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + 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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