FAIR VALUE - Impairment of Valuation Adjustments were Recorded for Assets Recognized at Fair Value (Parenthetical) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended	3 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014 Mortgage Servicing Rights [Member]	Sep. 30, 2013 Mortgage Servicing Rights [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Repayment rate used for the calculation of mortgage servicing rights value	31.00%	29.00%	9.71%	9.37%
Discount rate used for calculation of mortgage servicing rights value	14.50%	14.50%	10.63%	10.59%
Loans held for sale	$ 80,014	$ 75,969