DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Derivative Assets (Detail) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Derivative [Line Items]
Net Amount Presented in the Balance Sheet, Derivative Asset	$ 44,159	$ 54,220
Subject to Master Netting Arrangements [Member]
Derivative [Line Items]
Net Amount Presented in the Balance Sheet, Derivative Asset	1,360	22,037
Gross Amounts Not Offset in the Balance Sheet Financial Instruments, Derivative Assets	1,293	1,378
Gross Amounts Not Offset in the Balance Sheet Cash Collateral Received, Derivative Assets	0	20,545
Net Amount, Derivative Assets	67	114
Subject to Master Netting Arrangements [Member] | Interest rate contracts - designated [Member]
Derivative [Line Items]
Net Amount Presented in the Balance Sheet, Derivative Asset	862	9,256
Gross Amounts Not Offset in the Balance Sheet Financial Instruments, Derivative Assets	862	843
Gross Amounts Not Offset in the Balance Sheet Cash Collateral Received, Derivative Assets	0	8,413
Net Amount, Derivative Assets	0	0
Subject to Master Netting Arrangements [Member] | Interest rate swaps - not designated [Member]
Derivative [Line Items]
Net Amount Presented in the Balance Sheet, Derivative Asset	472	12,720
Gross Amounts Not Offset in the Balance Sheet Financial Instruments, Derivative Assets	405	474
Gross Amounts Not Offset in the Balance Sheet Cash Collateral Received, Derivative Assets	0	12,132
Net Amount, Derivative Assets	67	114
Subject to Master Netting Arrangements [Member] | Equity contracts - not designated [Member]
Derivative [Line Items]
Net Amount Presented in the Balance Sheet, Derivative Asset	26	61
Gross Amounts Not Offset in the Balance Sheet Financial Instruments, Derivative Assets	26	61
Gross Amounts Not Offset in the Balance Sheet Cash Collateral Received, Derivative Assets	0	0
Net Amount, Derivative Assets	$ 0	$ 0