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Redeemable Noncontrolling Interest (Tables)
9 Months Ended 12 Months Ended
Sep. 30, 2013
Dec. 31, 2012
Redeemable Noncontrolling Interest    
Summary of the redeemable noncontrolling interest activity

 

 

(in millions)

 

2013

 

2012

 

Balance as of January 1,

 

$

67.4

 

$

67.4

 

Distributions

 

(26.0

)

(27.4

)

Share of income

 

24.6

 

26.6

 

Adjustment to redemption value of redeemable noncontrolling interest

 

2.0

 

 

Other

 

(0.1

)

 

Balance as of September 30,

 

$

67.9

 

$

66.6

 

 

 

(in millions)

 

Redeemable
Noncontrolling
Interest

 

Balance as of January 1, 2011

 

$

28.1

 

Distributions

 

(31.2

)

Share of income

 

32.0

 

Adjustment to redemption value of redeemable noncontrolling interest

 

38.6

 

Other

 

(0.1

)

Balance as of December 31, 2011

 

67.4

 

Distributions

 

(36.0

)

Share of income

 

36.0

 

Balance as of December 31, 2012

 

$

67.4