Premises and Equipment - Schedule of Future Minimum Rentals (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013
Premises [Member]
Operating Leased Assets [Line Items]
2014	$ 3,327
2015	3,113
2016	2,904
2017	2,653
2018	2,514
Therafter	14,916
Total	29,427
Equipment [Member]
Operating Leased Assets [Line Items]
2014	82
2015	2
2016	0
2017	0
2018	0
Therafter	0
Total	$ 84