Annual report pursuant to Section 13 and 15(d)

Long-Term Debt - Narrative (Details)

v3.7.0.1
Long-Term Debt - Narrative (Details) - USD ($)
9 Months Ended 12 Months Ended
Sep. 30, 2016
Feb. 29, 2016
Sep. 30, 2016
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Debt Instrument [Line Items]            
Proceeds from long-term debt       $ 1,280,700,000 $ 778,000,000 $ 169,000,000
Principal Owner            
Debt Instrument [Line Items]            
Notes payable, related parties, noncurrent, approved   $ 12,000,000        
Related party, approved principal amount contribution   $ 88,000,000        
Notes payable, related parties, noncurrent, approved stated interest rate   12.50%        
MONI | Revolving Credit Facility            
Debt Instrument [Line Items]            
Line of credit       44,800,000    
Remaining borrowing on line of credit       $ 250,200,000    
MONI | LIBOR | Revolving Credit Facility            
Debt Instrument [Line Items]            
Unused capacity fee for line of credit       0.50%    
Ascent Capital            
Debt Instrument [Line Items]            
Proceeds from long-term debt       $ 1,280,700,000 $ 778,000,000  
Senior Notes | Senior Notes 9.125 Percent Due 2020 | MONI            
Debt Instrument [Line Items]            
Principal       $ 585,000,000    
Stated interest rate on debt       9.125%    
Deferred financing costs, net of accumulated amortization       $ 6,922,000    
Effective interest rate   9.868%   12.50%    
Promissory Note | 9.868% Promissory Note to Ascent Capital due October 1, 2020 | Ascent Capital | Security Networks Acquisition            
Debt Instrument [Line Items]            
Proceeds from long-term debt   $ 100,000,000        
Term Loan | Designated as Hedging Instrument | Interest Rate Swap            
Debt Instrument [Line Items]            
Effective weighted average interest rate on borrowings       7.15%    
Term Loan | Term Loan Due September 2022 | MONI            
Debt Instrument [Line Items]            
Principal $ 1,100,000,000   $ 1,100,000,000 $ 1,097,250,000    
Effective interest rate       7.20%    
Debt discount on purchase price, percentage     1.50%      
Line of credit facility, periodic payment       $ 2,750,000    
Term Loan | Term Loan Due September 2022 | MONI | LIBOR            
Debt Instrument [Line Items]            
Basis spread on variable debt       5.50%    
Floor on variable debt       1.00%    
Term Loan | Term Loan Due March, 2018 | MONI            
Debt Instrument [Line Items]            
Effective interest rate       5.00%    
Repayments of debt 403,784,000          
Term Loan | Term Loan Due March, 2018 | MONI | LIBOR            
Debt Instrument [Line Items]            
Basis spread on variable debt       3.25%    
Floor on variable debt       1.00%    
Term Loan | Term Loan Due April 2022 | MONI            
Debt Instrument [Line Items]            
Effective interest rate       5.10%    
Repayments of debt 543,125,000          
Term Loan | Term Loan Due April 2022 | MONI | LIBOR            
Debt Instrument [Line Items]            
Basis spread on variable debt       3.50%    
Floor on variable debt       1.00%    
Revolving Credit Facility | MONI            
Debt Instrument [Line Items]            
Line of credit facility, current borrowing capacity 315,000,000   $ 315,000,000      
Repayments of lines of credit 138,900,000          
Revolving Credit Facility | Revolving Credit Facility Due 2021 | MONI            
Debt Instrument [Line Items]            
Effective interest rate       5.30%    
Maximum borrowing on line $ 295,000,000   $ 295,000,000 $ 295,000,000    
Basis spread on variable debt       4.00%    
Revolving Credit Facility | Revolving Credit Facility Due 2021 | MONI | LIBOR            
Debt Instrument [Line Items]            
Basis spread on variable debt       4.00%    
Floor on variable debt       1.00%