XML 51 R37.htm IDEA: XBRL DOCUMENT v3.4.0.3
Long-term Debt - Senior Secured Term Loan (Details) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended
Dec. 31, 2013
Mar. 31, 2016
Mar. 31, 2016
Mar. 31, 2015
Dec. 31, 2015
Sep. 30, 2015
Sep. 30, 2011
Long-term debt              
Debt instrument, face amount   $ 568,100,000 $ 568,100,000     $ 573,900,000  
Net proceeds from initial borrowing     0 $ 414,675,000      
Senior secured term loan, due March 2022              
Long-term debt              
Debt instrument, face amount   $ 421,813,000 $ 421,813,000 $ 425,000,000   423,938,000  
Percentage of original principal amount on which the aggregate amount of annual scheduled repayments is determined       1.00%      
Initial interest rate   4.50% 4.50%        
Debt prepayment premium percentage     1.00%        
Maximum percentage of annual excess cash flow required to be used for prepayment     50.00%        
Annual excess cash flow threshold for required prepayment     $ 1,000,000        
Percentage of net cash proceeds of non-ordinary course asset sales required to be used for prepayment     100.00%        
Percentage of net cash proceeds of certain issuances of debt required to be used for prepayment     100.00%        
Net proceeds from initial borrowing     $ 414,700,000        
Original issue discount   $ 2,100,000 2,100,000        
Transaction costs     $ 8,200,000        
Senior secured term loan, due March 2022 | Prime Rate              
Long-term debt              
Variable interest rate base     Prime rate        
Minimum floor variable percentage under terms of the debt agreement     2.00%        
Secondary variable rate margin (as a percent)     2.50%        
Senior secured term loan, due March 2022 | Federal funds rate              
Long-term debt              
Variable interest rate base     Federal funds rate        
Interest rate margin (as a percent)     0.50%        
Minimum floor variable percentage under terms of the debt agreement     2.00%        
Secondary variable rate margin (as a percent)     2.50%        
Senior secured term loan, due March 2022 | Eurocurrency rate (LIBO)              
Long-term debt              
Variable interest rate base     LIBO        
Minimum floor variable percentage under terms of the debt agreement     1.00%        
Secondary variable rate margin (as a percent)     3.50%        
Senior secured term loan, due March 2022 | Thirty Day LIBO              
Long-term debt              
Variable interest rate base     30-day LIBO        
Interest rate margin (as a percent)     1.00%        
Minimum floor variable percentage under terms of the debt agreement     2.00%        
Secondary variable rate margin (as a percent)     3.50%        
Incremental term loans              
Long-term debt              
Maximum borrowing capacity       $ 150,000,000      
7.25% Senior notes, due January 2019              
Long-term debt              
Debt instrument, face amount $ 150,000,000 146,250,000 $ 146,250,000     $ 150,000,000  
Maximum outstanding balance of senior notes at a specified period that may trigger early maturity of term loan       $ 50,000,000      
Repurchase and cancellation of senior notes   $ 3,800,000          
Net proceeds from senior secured notes $ 146,700,000            
Interest rate on secured notes (as a percent) 7.25% 7.25% 7.25%   7.25% 7.25%  
Purchase price of debt instrument, if there is a change in control (as a percent)     101.00%        
7.25% Senior notes, due January 2019 | Debt Instrument Redemption Period Commencing after January 15, 2016 | Maximum              
Long-term debt              
Debt instrument redemption price (as a percent)     103.625%        
7.25% Senior notes, due January 2019 | Debt Instrument Redemption Period Commencing after January 15, 2016 | Minimum              
Long-term debt              
Debt instrument redemption price (as a percent)     100.00%        
Senior Secured Notes 7.625 Percent              
Long-term debt              
Debt instrument, face amount             $ 400,000,000
Interest rate on secured notes (as a percent)   7.625% 7.625% 7.625%     7.625%