Redeemable Non-Controlling Interest (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
---|---|---|---|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|
Changes in Redeemable Non-controlling Interest [Roll Forward] | |||
Balance at January 1 | $ 70.3 | $ 68.1 | $ 0 |
Contribution by Dow Jones | 0 | 0 | 675.0 |
Distribution to Dow Jones | 0 | 0 | (607.5) |
Allocation of stokc-based compensation | 0 | 0.1 | 0 |
Total comprehensive income attributable to redeemable non-controlling interest | 10.5 | 2.1 | 0.6 |
Balance at December 31 | $ 80.8 | $ 70.3 | $ 68.1 |