Fair Value (Narrative) (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
Disclosure Fair Value Additional Information [Abstract]
Impaired loans	$ 38,584,000	$ 32,523,000
Impaired loans fair value	34,300,000	29,500,000
Specific loan loss reserves	$ 4,300,000	$ 3,000,000