Economic Dependence and Concentration of Credit Risk (Details) | 3 Months Ended | 9 Months Ended | 12 Months Ended |
Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014 | Dec. 31, 2014 |
Concentration Risk [Line Items] | | | | | |
Concentration risk percent | 100.00% | 100.00% | 100.00% | 100.00% | |
Moody's, Aa1 Rating [Member] | | | | | |
Concentration Risk [Line Items] | | | | | |
Ratings | | | AA1 | | |
Standard & Poor's, BBB+ Rating [Member] | | | | | |
Concentration Risk [Line Items] | | | | | |
Ratings | | | BBB+ | | |
Standard & Poor's, AA- Rating [Member] | | | | | |
Concentration Risk [Line Items] | | | | | |
Ratings | | | AA- | | |
Accounts Receivable [Member] | | | | | |
Concentration Risk [Line Items] | | | | | |
Concentration risk percent | | | 47.00% | | 53.00% |
Accounts Receivable [Member] | Samsung Companies [Member] | | | | | |
Concentration Risk [Line Items] | | | | | |
Concentration risk percent | | | 30.00% | | |
Accounts Receivable [Member] | Toshiba Companies [Member] | | | | | |
Concentration Risk [Line Items] | | | | | |
Concentration risk percent | | | 17.00% | | |
Accounts Receivable [Member] | Rogers Media [Member] | | | | | |
Concentration Risk [Line Items] | | | | | |
Concentration risk percent | | | | | 28.00% |
Accounts Receivable [Member] | National Hockey League [Member] | | | | | |
Concentration Risk [Line Items] | | | | | |
Concentration risk percent | | | | | 13.00% |
Accounts Receivable [Member] | National Basketball Association [Member] | | | | | |
Concentration Risk [Line Items] | | | | | |
Concentration risk percent | | | | | 12.00% |
Accounts Payable [Member] | | | | | |
Concentration Risk [Line Items] | | | | | |
Concentration risk percent | | | 75.00% | | 59.00% |
Accounts Payable [Member] | National Hockey League [Member] | | | | | |
Concentration Risk [Line Items] | | | | | |
Concentration risk percent | | | | | 49.00% |
Accounts Payable [Member] | National Basketball Association [Member] | | | | | |
Concentration Risk [Line Items] | | | | | |
Concentration risk percent | | | 43.00% | | |
Accounts Payable [Member] | Ultimate Fighting Championship [Member] | | | | | |
Concentration Risk [Line Items] | | | | | |
Concentration risk percent | | | | | 10.00% |
Accounts Payable [Member] | National Football League [Member] | | | | | |
Concentration Risk [Line Items] | | | | | |
Concentration risk percent | | | 32.00% | | |
Revenue [Member] | Customer Concentration Risk [Member] | | | | | |
Concentration Risk [Line Items] | | | | | |
Concentration risk percent | | 26.00% | 23.00% | | |
Revenue [Member] | Customer Concentration Risk [Member] | LG Electronics [Member] | | | | | |
Concentration Risk [Line Items] | | | | | |
Concentration risk percent | 12.00% | | 12.00% | | |
Revenue [Member] | Customer Concentration Risk [Member] | National Hockey League [Member] | | | | | |
Concentration Risk [Line Items] | | | | | |
Concentration risk percent | | 15.00% | 11.00% | 18.00% | |
Revenue [Member] | Customer Concentration Risk [Member] | National Football League [Member] | | | | | |
Concentration Risk [Line Items] | | | | | |
Concentration risk percent | | 11.00% | | | |
Cash and Cash Equivalents [Member] | Standard & Poor's, BBB+ Rating [Member] | Moody's, Baa1 Rating [Member] | | | | | |
Concentration Risk [Line Items] | | | | | |
Concentration risk percent | | | 39.00% | | |
Ratings | | | Baa1 | | |
Cash and Cash Equivalents [Member] | Standard & Poor's, AA- Rating [Member] | Moody's, Aa1 Rating [Member] | | | | | |
Concentration Risk [Line Items] | | | | | |
Concentration risk percent | | | 26.00% | | |