GOODWILL AND INTANGIBLE ASSETS (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of intangible assets	$ 19.5	$ 21.4
Finite-Lived Intangible Assets, Future Amortization Expense
Estimated amortization expense, 2012	64.8
Estimated amortization expense, 2013	80.4
Estimated amortization expense, 2014	76.9
Estimated amortization expense, 2015	71.6
Estimated amortization expense, 2016	64.2
Estimated amortization expense, Thereafter	528.3
Canadian licenses, value	$ 729.0		$ 743.3