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Debt (Tables)
3 Months Ended
Sep. 30, 2017
Debt Disclosure [Abstract]  
Schedule of Contractual Interest Expense and Amortization of Discount on Notes

The contractual interest expense and amortization of discount on the Notes for the three months ended September 30, 2017, were as follows (in millions):

 

 

 

September 30,

 

 

 

2017

 

Interest expense

 

$

0.7

 

Amortization of discount and debt issuance costs

 

 

4.3

 

Total interest

 

$

5.0