Quarterly report pursuant to Section 13 or 15(d)

STOCK-BASED COMPENSATION, Share-based Arrangements with Employees and Nonemployees (Details)

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STOCK-BASED COMPENSATION, Share-based Arrangements with Employees and Nonemployees (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Share-based arrangements with employees and nonemployees [Abstract]        
Total unrecognized compensation cost $ 56.2   $ 56.2  
Cost is expected to be recognized over a weighted average period (in years)     2 years 7 months 6 days  
Azoff Trust Note [Member]
       
Share-based arrangements with employees and nonemployees [Abstract]        
Interest rate on note issued (in hundredths) 3.00%   3.00%  
Payable in monthly installments     0.8  
Corporate expenses related to Azoff Trust Note $ 1.6 $ 1.6 $ 3.2 $ 3.2