RESTRUCTURING, DIVESTITURES, AND IMPAIRMENTS - Narrative (Detail)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Dec. 31, 2020	Aug. 04, 2021 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 0	$ 0	$ 0	$ 0
Loss on sale of business	10,900,000	104,100,000	10,900,000	166,200,000
Reclassification of accumulated currency translation adjustments to earnings	(3,800,000)	$ (87,200,000)	$ (3,800,000)	$ (87,200,000)
Disposed of by sale | Japan operations
Restructuring Cost and Reserve [Line Items]
Sale price for transaction						$ 11,300,000
Percentage of revenue in last fiscal period					0.01
Loss on sale of business	10,900,000
Reclassification of accumulated currency translation adjustments to earnings	$ (3,800,000)