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Schedule II - Valuation and Qualifying Accounts
 12 Months Ended
Dec. 31, 2015
Valuation and Qualifying Accounts [Abstract]  
Schedule II: Valuation and Qualifying Accounts
Schedule II: Valuation and Qualifying Accounts
 
 
 
 
Additions
 
 
 
 
Description
 
Balance at
Beginning
of Period
 
Charged to
Costs and
Expenses
 
Acquired
Obligations
 
Deductions
 
Balance at
End of
Period
 
 
(in millions)
Valuation allowance for deferred tax assets:
 
 
 
 
 
 
 
 
 
 
Year Ended December 31, 2015
 
$
65.3

 
$
18.8

 
$
—

 
$
(14.1
)
 
$
70.0

Year Ended December 31, 2014
 
63.6

 
13.4

 
—

 
(11.7
)
 
65.3

Year Ended December 31, 2013
 
51.3

 
11.0

 
6.2

 
(4.9
)
 
63.6