Acquisition - Schedule of Amounts Recorded on the Consolidated Balance Sheet on the Acquisition date (Detail) (USD $)	0 Months Ended
	May 31, 2013
Business Acquisition [Line Items]
Cash	$ 39,200,000
Orange Savings Bank [Member]
Business Acquisition [Line Items]
Cash	39,200,000
Common stock issued (420,000 shares)	23,100,000
Total fair value of consideration paid	$ 62,300,000