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Debt (Tables)
3 Months Ended
Dec. 31, 2018
Debt Disclosure [Abstract]  
Debt
Debt consists of:
 
December 31,
2018
 
September 30,
2018
 
(In millions)
3.75% convertible senior notes due 2020, net of discount and fees
$
112.9

 
$
111.7

Revolving Credit Facility, maturing 2021

 

 
$
112.9

 
$
111.7