Derivative Financial Instruments (Derivatives Used To Hedge Changes In Fair Value Attributable To Interest Rate Risk) (Detail) - Fair Value Hedging - Designated as Hedging Instrument - Interest Rate Contract - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Derivative [Line Items]
Amount of Gain or (Loss) Recognized in Income on Derivative	$ (554)	$ (32)
Amount of Gain or (Loss) Recognized in Income on Hedged Item	515	28
Income Statement Gain/(Loss) due to Hedge Ineffectiveness	$ (39)	$ (4)