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Accrued Warranty Costs
6 Months Ended
Jun. 30, 2018
Product Warranties Disclosures [Abstract]  
Accrued Warranty Costs
Accrued Warranty Costs

The Company estimates warranty claims on products sold that may be incurred based on current and historical data. Actual warranty expense could differ from the estimates made by the Company based on product performance. The following table presents changes in the Company’s product warranty liability for the six months ended June 30, 2018 and 2017:

 
2018
 
2017
 
(In millions)
January 1
$
7.9

 
$
7.1

Claims paid
(2.5
)
 
(1.6
)
Warranty expense
2.5

 
2.1

June 30
$
7.9

 
$
7.6