Rendering
| Component: (Network and Table) | 
|---|
| Network | 3020 - Disclosure - Summary of Significant Accounting Policies (Tables) (http://www.ascentmediacorporation.com/role/DisclosureSummaryOfSignificantAccountingPoliciesTables)  | 
| Table | (Implied) | 
Slicers (applies to each fact value in each table cell)
| Reporting Entity [Axis] | 0001437106 (http://www.sec.gov/CIK) | 
| Summary of Significant Accounting Policies | Period [Axis] | 
|---|
2012-01-01 - 2012-12-31  | 
|---|
Summary of Significant Accounting Policies  |    | 
Schedule of activity in the allowance for doubtful accounts  | 
A summary of activity in the allowance for doubtful accounts is as follows (amounts in thousands): 
  
| 
    | 
    | 
 Balance 
Beginning of Year  | 
    | 
 Charged to Expense  | 
    | 
 Write-Offs 
and Other  | 
    | 
 Balance End of Year  | 
    |  
| 
 2012  | 
    | 
 $  | 
 1,815  | 
    | 
 5,860  | 
    | 
 (6,239  | 
 )  | 
 1,436  | 
    |  
| 
 2011  | 
    | 
 $  | 
 250  | 
    | 
 5,484  | 
    | 
 (3,919  | 
 )  | 
 1,815  | 
    |  
| 
 2010  | 
    | 
 $  | 
 0  | 
    | 
 250  | 
    | 
 0  | 
    | 
 250  | 
    |    
   | 
Schedule of estimated useful lives by class of asset  | 
  
  
| 
 Buildings  | 
    | 
 20 years  | 
    |  
| 
 Leasehold improvements  | 
    | 
 15 years or lease term, if shorter  | 
    |  
| 
 Machinery and equipment  | 
    | 
 5 - 7 years  | 
    |  
| 
 Computer systems and software (included in Machinery and Equipment in note 9)  | 
    | 
 3 - 5 years  | 
    |    
   | 
Schedule of estimated amortization of subscriber accounts  | 
Based on subscriber accounts held at December 31, 2012, estimated amortization of subscriber accounts in the succeeding five fiscal years ending December 31 is as follows (amounts in thousands): 
  
| 
 2013  | 
    | 
 $  | 
 158,747  | 
    |  
| 
 2014  | 
    | 
 132,920  | 
    |  
| 
 2015  | 
    | 
 111,293  | 
    |  
| 
 2016  | 
    | 
 93,225  | 
    |  
| 
 2017  | 
    | 
 87,299  | 
    |  
| 
    | 
    | 
    | 
    |  
| 
 Total  | 
    | 
 $  | 
 583,484  | 
    |    
   | 
Schedule of weighted average number of shares used in calculation of basic and diluted earnings (loss) per common share  | 
  
  
| 
    | 
    | 
 Year Ended December 31,  | 
    |  
| 
    | 
    | 
 2012  | 
    | 
 2011  | 
    | 
 2010  | 
    |  
| 
    | 
    | 
    | 
    | 
    | 
    | 
    | 
    |  
| 
 Weighted average Series A and Series B shares  | 
    | 
 14,026,102  | 
    | 
 14,195,834  | 
    | 
 14,200,417  | 
    |    
   | 
 
 
| 
    | 
    | 
 Year Ended December 31,  | 
    | 
| 
    | 
    | 
 2012  | 
    | 
 2011  | 
    | 
 2010  | 
    | 
| 
    | 
    | 
    | 
    | 
    | 
    | 
    | 
    | 
| 
 Weighted average Series A and Series B shares  | 
    | 
 14,026,102  | 
    | 
 14,195,834  | 
    | 
 14,200,417  | 
    | 
 
 
 
| 
 Buildings  | 
    | 
 20 years  | 
    | 
| 
 Leasehold improvements  | 
    | 
 15 years or lease term, if shorter  | 
    | 
| 
 Machinery and equipment  | 
    | 
 5 - 7 years  | 
    | 
| 
 Computer systems and software (included in Machinery and Equipment in note 9)  | 
    | 
 3 - 5 years  | 
    | 
 
A summary of activity in the allowance for doubtful accounts is as follows (amounts in thousands):
 
| 
    | 
    | 
 Balance 
Beginning of Year  | 
    | 
 Charged to Expense  | 
    | 
 Write-Offs 
and Other  | 
    | 
 Balance End of Year  | 
    | 
| 
 2012  | 
    | 
 $  | 
 1,815  | 
    | 
 5,860  | 
    | 
 (6,239  | 
 )  | 
 1,436  | 
    | 
| 
 2011  | 
    | 
 $  | 
 250  | 
    | 
 5,484  | 
    | 
 (3,919  | 
 )  | 
 1,815  | 
    | 
| 
 2010  | 
    | 
 $  | 
 0  | 
    | 
 250  | 
    | 
 0  | 
    | 
 250  | 
    | 
 
Based on subscriber accounts held at December 31, 2012, estimated amortization of subscriber accounts in the succeeding five fiscal years ending December 31 is as follows (amounts in thousands):
 
| 
 2013  | 
    | 
 $  | 
 158,747  | 
    | 
| 
 2014  | 
    | 
 132,920  | 
    | 
| 
 2015  | 
    | 
 111,293  | 
    | 
| 
 2016  | 
    | 
 93,225  | 
    | 
| 
 2017  | 
    | 
 87,299  | 
    | 
| 
    | 
    | 
    | 
    | 
| 
 Total  | 
    | 
 $  | 
 583,484  | 
    |