FAIR VALUE (Unrealized Losses Included in Assets Measured in Consolidated Statements of Condition at Fair Value on Recurring Basis) (Detail) - Fair Value, Inputs, Level 3 - Available-for-sale Securities [Member] $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($)
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Balance at January 1	$ 1,023
Asset Transfers Into Level 3	2,116
Purchases of Level 3 assets	7,000
Total unrealized losses included in other comprehensive income (loss)	7
Balance at December 31	$ 10,146