GOODWILL AND OTHER INTANGIBLE ASSETS, NET - Other Intangible Assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Net Carrying Value	$ 14,555
Trade name intangibles
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	780	$ 780
Core deposit intangibles
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	30,904	30,904
Accumulated Amortization	16,662	12,939
Net Carrying Value	14,242	17,965
Customer relationship intangible
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	670	670
Accumulated Amortization	357	257
Net Carrying Value	$ 313	$ 413