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Other Noncurrent Assets (Tables)
 9 Months Ended
Sep. 30, 2018
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]  
Schedule of Other Noncurrent Assets

 

 

December 31,

 

 

September 30,

 

 

2017

 

 

2018

 

 

(In millions)

 

Pension asset

$

1.6

 

 

$

3.3

 

Deferred financing costs, net

 

1.1

 

 

 

.9

 

Other

 

2.8

 

 

 

1.1

 

Total

$

5.5

 

 

$

5.3