Derivative Financial Instruments (Derivatives Used To Hedge Changes In Fair Value Attributable To Interest Rate Risk) (Detail) (Other Income [Member], Interest Rate Contract [Member], USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Other Income [Member] | Interest Rate Contract [Member]
Derivative [Line Items]
Amount of Gain or (Loss) Recognized in Income on Derivative	$ 67,000	$ (203,000)	$ 56,000	$ (203,000)
Amount of Gain or (Loss) Recognized in Income on Hedged Item	(57,000)	216,000	(47,000)	216,000
Income Statement Gain/(Loss) due to Hedge Ineffectiveness	$ 10,000	$ 13,000	$ 9,000	$ 13,000