Segment Reporting (Narrative) (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 segment	Sep. 30, 2013
Segment Reporting Information [Line Items]
Number of operating segments			3
Amortization of intangible assets	$ 115,000	$ 462,000	$ 709,000	$ 1,384,000
Assets under management	1,000,000,000		1,000,000,000
Community Banking
Segment Reporting Information [Line Items]
Amortization of intangible assets		$ 300,000	$ 400,000	$ 1,100,000