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RELINQUISHMENT AGREEMENT (Tables)
12 Months Ended
Sep. 30, 2015
RELINQUISHMENT AGREEMENT [Abstract]  
Relinquishment payments
Relinquishment payments consisted of the following (in millions):
 
For the Fiscal Years Ended
 
September 30, 2015
 
September 30, 2014
 
September 30, 2013
Principal
$
24.4

 
$
46.6

 
$
45.4

Accretion of discount
0.8

 
2.9

 
5.8

Total
$
25.2

 
$
49.5

 
$
51.2