Components of Property and Equipment (Detail) - USD ($)
$ in Thousands |
12 Months Ended |
|
Dec. 31, 2015 |
Dec. 31, 2014 |
| Property, Plant and Equipment [Line Items] |
|
|
| Property and equipment, gross |
$ 421,031
|
$ 442,235
|
| Less: accumulated depreciation |
(251,594)
|
(220,738)
|
| Property and equipment, net |
169,437
|
221,497
|
| Land |
|
|
| Property, Plant and Equipment [Line Items] |
|
|
| Property and equipment, gross |
63,627
|
93,723
|
| Broadcasting and other equipment |
|
|
| Property, Plant and Equipment [Line Items] |
|
|
| Property and equipment, gross |
$ 229,989
|
231,371
|
| Broadcasting and other equipment | Minimum |
|
|
| Property, Plant and Equipment [Line Items] |
|
|
| Property and equipment, estimated useful life |
3 years
|
|
| Broadcasting and other equipment | Maximum |
|
|
| Property, Plant and Equipment [Line Items] |
|
|
| Property and equipment, estimated useful life |
30 years
|
|
| Computer and capitalized software costs |
|
|
| Property, Plant and Equipment [Line Items] |
|
|
| Property and equipment, gross |
$ 28,959
|
22,925
|
| Computer and capitalized software costs | Minimum |
|
|
| Property, Plant and Equipment [Line Items] |
|
|
| Property and equipment, estimated useful life |
1 year
|
|
| Computer and capitalized software costs | Maximum |
|
|
| Property, Plant and Equipment [Line Items] |
|
|
| Property and equipment, estimated useful life |
3 years
|
|
| Furniture and fixtures |
|
|
| Property, Plant and Equipment [Line Items] |
|
|
| Property and equipment, gross |
$ 14,183
|
12,690
|
| Property and equipment, estimated useful life |
5 years
|
|
| Leasehold improvements |
|
|
| Property, Plant and Equipment [Line Items] |
|
|
| Property and equipment, gross |
$ 36,242
|
31,099
|
| Property and equipment, estimated useful life |
5 years
|
|
| Buildings |
|
|
| Property, Plant and Equipment [Line Items] |
|
|
| Property and equipment, gross |
$ 45,988
|
45,873
|
| Buildings | Minimum |
|
|
| Property, Plant and Equipment [Line Items] |
|
|
| Property and equipment, estimated useful life |
9 years
|
|
| Buildings | Maximum |
|
|
| Property, Plant and Equipment [Line Items] |
|
|
| Property and equipment, estimated useful life |
20 years
|
|
| Construction in progress |
|
|
| Property, Plant and Equipment [Line Items] |
|
|
| Property and equipment, gross |
$ 2,043
|
$ 4,554
|