INCOME TAXES (Details 2) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
INCOME TAXES
Net tax benefits from share-based transactions	$ 1.3	$ 0.6
Non-deductible separation costs	1.7
Reconciliation of the beginning and ending amount of gross unrecognized tax benefits
Balance at beginning of the period	2.6	3.5	2.7
Additions for tax positions of prior years	4.0	0.3
Additions for tax positions of current year	3.7	(0.5)	1.1
Reductions for tax positions of prior years	(1.0)		(0.3)
Reductions for lapse of statute of limitations	(1.0)	(0.7)
Balance at the end	8.3	2.6	3.5
Unrecognized tax benefits that, if recognized, would favorably impact the effective rate	8.3	2.6	3.5
Interest accrued related to unrecognized tax benefits	0.4	0.2	0.2
Unrecognized tax benefit increase due to Former Parent Company indemnification plan	$ 4.0