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ADVANCES FROM THE FEDERAL HOME LOAN BANK (FHLB) - Summary of Advances from FHLB (Detail) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Short Term Debt [Line Items] |  |
Fixed-rate advances from FHLB | $ 715,000 | $ 670,000
long term debt [member] |  |
Short Term Debt [Line Items] |  |
Fixed-rate advances from FHLB | 715,000 | 500,000
short term debt [member] |  |
Short Term Debt [Line Items] |  |
Fixed-rate advances from FHLB | $ 0 | $ 170,000

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- Definition Amount of Federal Home Loan Bank (FHLBank) advances to member financial institutions. + 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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- Details
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- Details
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