INCOME TAXES (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Income Taxes [Line Items]
Liability for uncertain tax position that would impact effective tax rate	$ 2.3		$ 2.2
Uncertain tax positions included in income taxes payable	0.8		1.0
Liability for uncertain tax positions	1.5		1.2
Prior year liability uncertain tax positions relating to 2010	0.8
Accrued interest and penalties uncertain tax positions	0.2		0.2
Deferred tax assets	1.9
Expected increase in income tax benefit	0.4
Increase in income tax benefit		0.4
TRP [Member]
Income Taxes [Line Items]
Deferred tax liabilities at the date of acquisition	0.6
Deferred tax assets	2.2
Array [Member]
Income Taxes [Line Items]
Deferred tax liability	0.7
Deferred tax liabilities at the date of acquisition	1.0
Deferred tax assets	$ 2.1