FAIR VALUE MEASUREMENTS - Schedule of Contingent Consideration Liabilities Recorded Using Level 3 Inputs (Detail) - Level 3 Inputs [Member] - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Other liabilities	$ 2.7	$ 2.8
Other long-term liabilities	7.5	7.5
Total contingent consideration	$ 10.2	$ 10.3