NONCONTROLLING INTEREST - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Dec. 31, 2013	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Noncontrolling Interest [Line Items]
Percentage ownership agreed to sell						50.01%
Net income attributable to noncontrolling interest		$ 0	$ 1,181	$ 0	$ 2,200
JobKorea Ltd.
Noncontrolling Interest [Line Items]
Percentage ownership interest sold	49.99%
Cash consideration received upon sale of interest in subsidiary	$ 90,000