INCOME TAXES (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Income Tax Contingency [Line Items]
Liability for uncertain tax positions	$ 27.7		$ 42.2
Liability for uncertain tax positions - current	2.3		1.9
Liability for uncertain positions expected to be resolved in next fiscal year	2.3
Reduction relating to interest and penalties uncertain tax positions	(11.1)
Interest and penalties uncertain tax positions recognized	0.8	$ 2.1
Benefit on reversal of interest and penalties	(3.1)	$ 0.0
Accrued interest and penalties uncertain tax positions	1.7		$ 4.0
Power Solutions [Member]
Income Tax Contingency [Line Items]
Reduction relating to settlement with taxing authorities	(13.9)
Reduction relating to interest and penalties uncertain tax positions	(2.6)
Interest and penalties uncertain tax positions recognized	4.1
Annual accrual for liability for uncertain tax positions	$ 0.7