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Schedule II-Valuation and Qualifying Accounts
 12 Months Ended
Dec. 31, 2017
Valuation and Qualifying Accounts [Abstract]  
Schedule II-Valuation and Qualifying Accounts
Schedule II—Valuation and Qualifying Accounts
Years ended December 31, 2017, 2016, and 2015
(Amounts in millions)
 
Description
Balance at
Beginning
of Year
 
"Additions"
Charged to
Costs and
Expenses
 
"Other"
Additions
(Deductions)
 
"Less"
Deductions
 
Balance
at End
of Year
Year ended December 31, 2017
 
 
 
 
 
 
 
 
 
Allowance for doubtful accounts
$
11.2

 
8.2

 
—

 
7.5

 
11.9

Insurance reserves
$
34.6

 
68.2

(1) 
—

 
63.8

(2) 
39.0

Year ended December 31, 2016
 
 
 
 
 
 
 
 
 
Allowance for doubtful accounts
$
11.7

 
8.5

 
—

 
9.0

 
11.2

Insurance reserves
$
31.8

 
62.3

(1) 
—

 
59.5

(2) 
34.6

Year ended December 31, 2015
 
 
 
 
 
 
 
 
 
Allowance for doubtful accounts
$
12.6

 
8.8

 
—

 
9.7

 
11.7

Insurance reserves
$
31.1

 
54.3

(1) 
—

 
53.6

(2) 
31.8

(1) Includes costs and expenses incurred for premiums and claims related to health and general insurance.
(2) Includes costs and expenses paid for premiums and claims related to health and general insurance.
See accompanying Report of Independent Registered Public Accounting Firm incorporated herein by reference.