RESTRUCTURING, DIVESTITURES AND DISPOSAL GROUPS HELD FOR SALE - Summary of Assets and Liabilities Classified as Held for Sale (Detail) - USD ($)	Sep. 30, 2019	Dec. 31, 2018
Restructuring Cost And Reserve [Line Items]
Total current assets (primarily receivables)	$ 30,200,000
Total current liabilities	17,400,000
Assets and Liabilities Held for Sale, Not Discontinued Operations
Restructuring Cost And Reserve [Line Items]
Total current assets (primarily receivables)	31,500,000
Fixed assets	13,800,000
Operating lease right-of-use assets	3,300,000
Intangibles	47,500,000
Held-for-sale valuation allowance	(65,900,000)
Assets held-for-sale	30,200,000	$ 0
Total current liabilities	15,200,000
Long-term operating lease liabilities	2,200,000
Liabilities held-for-sale	$ 17,400,000