Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events - Narrative (Details)

v3.10.0.1
Subsequent Events - Narrative (Details) - USD ($)
Oct. 30, 2018
Oct. 29, 2018
Sep. 30, 2018
Sep. 30, 2016
Revolving Credit Facility | Revolving Credit Facility Due 2021        
Subsequent Event [Line Items]        
Maximum borrowing on line     $ 295,000,000 $ 295,000,000
Amended and Restated Support Agreement | Subsequent Event        
Subsequent Event [Line Items]        
Proceeds from contributions from Ascent Capital $ 75,000,000      
Amended and Restated Support Agreement | Term Loan | Term Loan Due September 2022 | Subsequent Event        
Subsequent Event [Line Items]        
Interest rate increase 1.00%      
Amended and Restated Support Agreement | Revolving Credit Facility | Revolving Credit Facility Due 2021 | Subsequent Event        
Subsequent Event [Line Items]        
Interest rate increase 0.75%      
Maximum borrowing on line $ 250,000,000 $ 295,000,000    
Amended and Restated Support Agreement | Senior Notes | Senior Notes, Second Lien Notes Due 2023 | Subsequent Event        
Subsequent Event [Line Items]        
Debt interest rate 5.50%      
Debt interest rate, paid in kind 6.50%