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Schedule II - Valuation and Qualifying Accounts
 12 Months Ended
Dec. 31, 2016
Valuation and Qualifying Accounts [Abstract]  
Schedule II - Valuation and Qualifying Accounts
SCHEDULE II—VALUATION AND QUALIFYING ACCOUNTS


(in millions)
Balance
Beginning
of Year
 
Charged
to
Expense
 
Deductions
 
Balance
End of
Year
Allowance for doubtful accounts:
 
 
 
 
 
 
 
2016
$
3.8

 
$
2.0

 
$
(2.3
)
 
$
3.5

2015
4.2

 
1.3

 
(1.7
)
 
3.8

2014
4.3

 
1.7

 
(1.8
)
 
4.2



(in millions)
Balance
Beginning
of Year
 
Additions
 
Deductions
 
Balance
End of
Year
Deferred income tax asset valuation allowance:
 
 
 
 
 
 
 
2016
$
1.1

 
$
—

 
$
(0.6
)
 
$
0.5

2015
1.3

 
0.1

 
(0.3
)
 
1.1

2014
1.2

 
0.1

 
—

 
1.3