LOAN PORTFOLIO - Breakdown Between Accrual and Nonaccrual Status of TDRs (Parenthetical) (Detail) - USD ($) $ in Thousands |
Mar. 31, 2018 |
Dec. 31, 2017 |
Mar. 31, 2017 |
Dec. 31, 2016 |
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Financing Receivable Modifications [Line Items] | ||||||||||||||
Total TDR loans | $ 572,376 | [1] | $ 587,219 | $ 602,364 | $ 647,048 | |||||||||
Non Accrual [Member] | ||||||||||||||
Financing Receivable Modifications [Line Items] | ||||||||||||||
Total TDR loans | 205,954 | [2],[3] | 212,524 | [4] | ||||||||||
Performing Financing Receivable [Member] | Non Accrual [Member] | ||||||||||||||
Financing Receivable Modifications [Line Items] | ||||||||||||||
Total TDR loans | $ 53,200 | $ 88,600 | ||||||||||||
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