FAIR VALUE MEASUREMENTS - Schedule of Contingent Consideration Liabilities Recorded Using Level 3 Inputs (Detail) - Level 3 Inputs [Member] - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Other current liabilities	$ 2.9	$ 2.8
Other liabilities	7.4	7.5
Total contingent consideration	$ 10.3	$ 10.3