Goodwill And Other Intangible Assets (Gross Carrying Value And Accumulated Amortization Of Other Intangible Assets) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 Community Banking [Member]	Dec. 31, 2013 Community Banking [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount					$ 49,420	$ 49,420
Accumulated Amortization					(46,338)	(44,069)
Net Carrying Amount					3,082	5,351
Amortization of intangible assets	$ 432	$ 1,242	$ 2,269	$ 3,726