|
Key Estimates and Assumptions used in Start-Up Income Valuation of Broadcast Units For Each Testing Period (Detail) (Goodwill-Broadcast)
|
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|
| Schedule Of Goodwill And Intangible Assets [Line Items] | |||
| Discount rate | 9.00% | 9.00% | 9.00% |
|
Minimum
|
|||
| Schedule Of Goodwill And Intangible Assets [Line Items] | |||
| Operating profit margin ranges | 5.10% | 3.80% | 3.80% |
| Long-term market revenue growth rate ranges | 0.30% | 1.00% | 0.25% |
|
Maximum
|
|||
| Schedule Of Goodwill And Intangible Assets [Line Items] | |||
| Operating profit margin ranges | 35.50% | 38.00% | 36.30% |
| Long-term market revenue growth rate ranges | 15.00% | 4.00% | 3.50% |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Ratio of an entity's operating income net of tax to its revenue, used as an input to measure fair value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Long-term pre-tax operating income as a percentage of net sales, used as an input to measure fair value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Percentage of assumed long-term growth in revenues, used as an input to measure fair value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|