Fair Values of Financial Instruments - Summary of Assets Measured at Fair Value on a Non-recurring Basis (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Line Items]
Loans held for sale	$ 32,131	$ 5,029
Impaired loans	4,174	4,175
Real estate owned	3,423	3,515
Total	39,728	12,719
Significant Other Observable Inputs (Level 2) [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Line Items]
Loans held for sale	32,131	5,029
Impaired loans	4,174	4,175
Real estate owned	3,423	3,515
Total	$ 39,728	$ 12,719