FAIR VALUE MEASUREMENTS - Schedule of Contingent Consideration Liabilities Recorded Using Level 3 Inputs, Amounts Classified as Either Other Current Liabilities or Other Liabilities (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Other liabilities (see Note 8)	$ 7.4	$ 7.5
Level 3 Inputs [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Other current liabilities	0.6	2.8
Other liabilities (see Note 8)	7.4	7.5
Total contingent consideration	$ 8.0	$ 10.3