XML 42 R30.htm IDEA: XBRL DOCUMENT v3.5.0.2
LONG-TERM DEBT - Senior Subordinated Notes (Details) - USD ($)
Jun. 30, 2016
Sep. 30, 2015
Aug. 31, 2013
Mar. 31, 2012
Debt Instrument [Line Items]        
Accrued interest payable $ 22,521,000 $ 12,055,000    
2012 11 % Senior Subordinated Notes | Senior Subordinated Notes        
Debt Instrument [Line Items]        
Loan face amount       $ 344,200,000.0
Note stated interest rate 11.00% 11.00%   11.00%
Redeemable rate before cutoff       100.00%
Redeemable rate after cutoff       101.00%
Redeemable rate upon certain conditions       100.00%
Payment in Kind (PIK) interest rate       2.00%
Debt instrument, repurchase amount   $ 175,000,000 $ 69,000,000  
Notes payable $ 100,200,000      
Accrued interest payable $ 3,200,000 $ 490,000