LOAN PORTFOLIO - Breakdown Between Accrual and Nonaccrual Status of TDRs (Parenthetical) (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	[1]	Dec. 31, 2013
Financing Receivable Modifications [Line Items]
Total TDR loans	$ 647,048	$ 661,591	$ 694,453		$ 630,258
Performing Financing Receivable [Member] | Non Accrual [Member]
Financing Receivable Modifications [Line Items]
Total TDR loans	$ 110,600	$ 118,200

[1] Excludes TDRs held for sale amounting to $45.7 million as of December 31, 2014.