Intangible Assets and Goodwill - Additional Information (Detail) $ / shares in Units, shares in Millions |
12 Months Ended |
|
Dec. 31, 2015
USD ($)
Segment
$ / shares
shares
|
Dec. 31, 2014
USD ($)
|
Dec. 31, 2013
USD ($)
|
| Intangible Assets And Goodwill [Line Items] |
|
|
|
| Amortization expense |
$ 69,110,000
|
$ 79,981,000
|
$ 86,700,000
|
| Impairment losses |
549,711,000
|
0
|
|
| Impairment |
$ 15,873,000
|
|
|
| Asset impairment charges |
|
$ 0
|
|
| Number of reporting units | Segment |
3
|
|
|
| Market capitalization value |
$ 2,500,000,000
|
|
|
| Shares outstanding | shares |
234.6
|
|
|
| Debt including preferred equity |
$ 2,400,000,000
|
|
|
| Broadcast licenses |
|
|
|
| Intangible Assets And Goodwill [Line Items] |
|
|
|
| Impairment |
$ 15,900,000
|
|
|
| Class A Common Stock |
|
|
|
| Intangible Assets And Goodwill [Line Items] |
|
|
|
| Closing price of stock | $ / shares |
$ 0.33
|
|
|
| Discounted cash flow valuation model | FCC Licenses |
|
|
|
| Intangible Assets And Goodwill [Line Items] |
|
|
|
| Market revenue growth rate percentage for the residual year |
1.90%
|
|
|
| Discount rate in fair value calculations |
8.60%
|
|
|
| Total term |
3 years
|
|
|
| Period for calculating depreciation expense using accelerated double declining balance guidelines |
5 years
|
|
|
| Goodwill | Discounted cash flow valuation model |
|
|
|
| Intangible Assets And Goodwill [Line Items] |
|
|
|
| Period for operating cash flow projections |
5 years
|
|
|
| Market revenue growth rate percentage for the residual year |
1.90%
|
|
|
| Estimated EBITDA multiple |
10
|
|
|
| Discount rate in fair value calculations |
8.60%
|
|
|