FAIR VALUE MEASUREMENTS - Changes to Contingent Consideration (Detail) - Contingent Consideration Liability $ in Millions	3 Months Ended
Mar. 31, 2019 USD ($)
Business Combination, Contingent Consideration, Liability [Roll Forward]
Contingent consideration, Beginning Balance	$ 10.3
Changes due to foreign currency fluctuations	(0.1)
Contingent consideration, Ending Balance	$ 10.2

Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258

Name:	us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant