XML 48 R67.htm IDEA: XBRL DOCUMENT v2.4.0.8
Premises and Equipment - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Property Plant And Equipment [Abstract]      
Depreciation expense included in operating expenses $ 1.0 $ 1.1 $ 1.2