RESTRUCTURING CHARGES - Related Liability Balance and Activity for Restructuring Programs (Detail) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2014	Dec. 31, 2013
Restructuring Reserve [Roll Forward]
Balance Beginning of Year	$ 14.0
(Income) Expense, Net	0.9
Foreign Currency Translation	(0.2)
Cash utilized, net	(8.4)
Non-cash utilized, net	0.0
September 30, 2015	6.3	$ 14.0
Efficiency Program
Restructuring Reserve [Roll Forward]
Cash utilized, net	(1.0)
Efficiency Program | Employee Severance and Other Personnel Benefits
Restructuring Reserve [Roll Forward]
Balance Beginning of Year	0.0
(Income) Expense, Net	3.7
Foreign Currency Translation	0.0
Cash utilized, net	(1.0)
Non-cash utilized, net	0.0
September 30, 2015	2.7	0.0
Integration Program
Restructuring Reserve [Roll Forward]
Cash utilized, net	(5.8)	(9.6)
Integration Program | Employee Severance and Other Personnel Benefits
Restructuring Reserve [Roll Forward]
Balance Beginning of Year	9.6
(Income) Expense, Net	(3.2)
Foreign Currency Translation	(0.2)
Cash utilized, net	(4.8)
Non-cash utilized, net	0.0
September 30, 2015	1.4	9.6
Integration Program | Other
Restructuring Reserve [Roll Forward]
Balance Beginning of Year	0.1
(Income) Expense, Net	0.3
Foreign Currency Translation	0.0
Cash utilized, net	(0.4)
Non-cash utilized, net	0.0
September 30, 2015	0.0	0.1
December 2013 Program
Restructuring Reserve [Roll Forward]
Cash utilized, net		(15.5)	$ (0.1)
December 2013 Program | Employee Severance and Other Personnel Benefits
Restructuring Reserve [Roll Forward]
Balance Beginning of Year	1.2
(Income) Expense, Net	0.0
Foreign Currency Translation	0.0
Cash utilized, net	0.0
Non-cash utilized, net	0.0
September 30, 2015	1.2	1.2
December 2013 Program | Other
Restructuring Reserve [Roll Forward]
Balance Beginning of Year	0.0
(Income) Expense, Net	0.0
Foreign Currency Translation	0.0
Cash utilized, net	0.0
Non-cash utilized, net	0.0
September 30, 2015	0.0	0.0
Other Immaterial Actions | Employee Severance and Other Personnel Benefits
Restructuring Reserve [Roll Forward]
Balance Beginning of Year	3.1
(Income) Expense, Net	0.1
Foreign Currency Translation	0.0
Cash utilized, net	(2.2)
Non-cash utilized, net	0.0
September 30, 2015	1.0	3.1
Other Immaterial Actions | Other
Restructuring Reserve [Roll Forward]
Balance Beginning of Year	0.0
(Income) Expense, Net	0.0
Foreign Currency Translation	0.0
Cash utilized, net	0.0
Non-cash utilized, net	0.0
September 30, 2015	$ 0.0	$ 0.0