LOAN PORTFOLIO - Credit Risk Payment Activity (Parenthetical) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable Recorded Investment [Line Items]
Residential mortgage loans insured by FHA or guaranteed by the VA	$ 29,300	$ 37,300
Period of residential mortgage loan that are no longer accruing interest	1 year 3 months	1 year 3 months
Loans considered to be defaulted if borrower has failed to make payment for a period or more than the period	2 months 29 days	2 months 29 days
Loans Receivable Held For Sale Net	$ 50,006	$ 35,869
Land Construction Financing Receivable [Member]
Financing Receivable Recorded Investment [Line Items]
Loans Receivable Held For Sale Net	$ 8,100	$ 8,100