|
STOCK-BASED COMPENSATION (Details 1) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
|
Sep. 30, 2012
|
Sep. 30, 2011
|
Sep. 30, 2012
|
Sep. 30, 2011
|
|
| Disclosure of Compensation Related Costs, Share-based Payments [Abstract] | ||||
| Stock-based compensation expense | $ 2.2 | $ 1.9 | $ 6.0 | $ 6.7 |
| Mark-to-market adjustments | 0.5 | (2.0) | 1.0 | (1.2) |
| Total expense (income) | $ 2.7 | $ (0.1) | $ 7.0 | $ 5.5 |