GOODWILL AND OTHER INTANGIBLE ASSETS - Additional Information (Detail) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2017 USD ($)	Dec. 31, 2017 segment
Goodwill acquired
Number of reporting units | segment		1
Deerwood
Goodwill acquired
Total consideration	$ 28.2
Purchase consideration paid in cash	15.0
Contingent consideration	$ 13.2
Earn-out period for contingent consideration	3 years