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Affiliate Equity (Tables)
6 Months Ended
Jun. 30, 2013
Affiliate Equity  
Schedule of the changes in redeemable non-controlling interests
The following table presents the changes in Redeemable non-controlling interests during the period:
Balance, as of December 31, 2012
$
477.5

Issuance of Redeemable non-controlling interests
3.4

Repurchase of Redeemable non-controlling interests
(28.7
)
Changes in redemption value
67.6

Balance, as of June 30, 2013
$
519.8

Schedule of the effect of changes in the entity's ownership interest in its affiliates on the controlling interest's equity
The following schedule discloses the effect of changes in the Company's ownership interest in its Affiliates on the controlling interest's equity:
 
For the Three Months Ended June 30,
 
For the Six Months Ended June 30,
 
2012
 
2013
 
2012
 
2013
Net income (controlling interest)
$
6.6

 
$
64.7

 
$
44.0

 
$
127.1

Decrease in controlling interest paid-in capital from purchases and sales of Affiliate equity
(2.6
)
 
(19.3
)
 
(8.6
)
 
(24.1
)
Change from Net income (controlling interest) and net transfers with non-controlling interests
$
4.0

 
$
45.4

 
$
35.4

 
$
103.0