OTHER REAL ESTATE OWNED- Other real estate owned (Detail) - USD ($) $ in Thousands		Sep. 30, 2017	Dec. 31, 2016
Other Real Estate And Foreclosed Assets [Line Items]
Other real estate owned		$ 152,977	$ 137,681
Residential Real Estate [Member]
Other Real Estate And Foreclosed Assets [Line Items]
Other real estate owned	[1]	56,993	46,917
Commercial Real Estate [Member]
Other Real Estate And Foreclosed Assets [Line Items]
Other real estate owned		85,194	78,698
Construction Real Estate [Member]
Other Real Estate And Foreclosed Assets [Line Items]
Other real estate owned		$ 10,790	$ 12,066

[1] Excludes $22.6 million and $15.0 million as of September 30, 2017 and December 31, 2016, respectively, of foreclosures that meet the conditions of ASC 310-40 and are presented as a receivable (other assets) in the statement of financial condition.