Annual report pursuant to Section 13 and 15(d)

Intangible Assets - Summary of Other Intangible Assets (Detail)

v3.3.1.900
Intangible Assets - Summary of Other Intangible Assets (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Acquired Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 2,213 $ 2,213
Accumulated Amortization (512) (133)
Net Carrying Amount $ 1,701 2,080
Core deposit intangible [Member]    
Acquired Finite-Lived Intangible Assets [Line Items]    
Amortization Period 10 years  
Gross Carrying Amount $ 2,213 2,213
Accumulated Amortization (512) (133)
Net Carrying Amount $ 1,701 $ 2,080