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Senior Notes (Tables)
9 Months Ended
Jun. 30, 2020
Debt Disclosure [Abstract]  
Carrying Amounts and Fair Values of Senior Notes
The following table presents the face values and fair values for the Senior Notes at June 30, 2020 and September 30, 2019:
 
June 30, 2020
 
September 30, 2019
 
Face Value (*)
 
Fair Value
 
Face Value (*)
 
Fair Value
 
(In thousands)
The 2010 Senior Notes
85,000

 
85,085

 
85,000

 
86,121

The 2018 Senior Notes
400,000

 
438,000

 
400,000

 
428,000

The 2019 Senior Notes
350,000

 
350,000

 

 

       Total
$
835,000

 
$
873,085

 
$
485,000

 
$
514,121

 
(*) The carrying value of the Senior Notes was reduced by the net debt issuance costs of $11.0 million and $5.2 million at June 30, 2020 and September 30, 2019, respectively.