FAIR VALUE MEASUREMENTS - Changes to Contingent Consideration (Detail) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2016	Sep. 30, 2015
Business Combination, Contingent Consideration, Liability [Roll Forward]
Contingent consideration at January 1, 2016		$ 25,390
Increases due to acquisitions		75
Decrease due to payments		(2,272)
Changes due to foreign currency fluctuations		1,560
Changes in fair value reflected in selling, general, and administrative expenses	$ 559	(2,085)	$ (640)
Contingent consideration at September 30, 2016	$ 22,668	$ 22,668