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Impairment of Goodwill and Other Indefinite-Lived Intangible Assets - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
1 Months Ended | 12 Months Ended | 6 Months Ended | 12 Months Ended | 12 Months Ended | 6 Months Ended | 12 Months Ended | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2012
|
Jun. 30, 2012
|
Dec. 31, 2013
|
Jun. 30, 2013
Internet and Publishing
|
Jun. 30, 2012
Internet and Publishing
|
Dec. 31, 2013
Internet and Publishing
|
Dec. 31, 2012
Internet and Publishing
|
Dec. 31, 2011
Internet and Publishing
|
Dec. 31, 2012
Minimum
Internet and Publishing
|
Dec. 31, 2012
Maximum
Internet and Publishing
|
Dec. 31, 2013
Networks
|
Dec. 31, 2012
Networks
|
Dec. 31, 2011
Networks
|
Dec. 31, 2013
Broadcast licenses
|
Dec. 31, 2012
Broadcast licenses
|
Dec. 31, 2011
Broadcast licenses
|
Jun. 30, 2013
Mastheads
|
Jun. 30, 2012
Mastheads
|
Dec. 31, 2013
Mastheads
|
Dec. 31, 2012
Mastheads
|
Dec. 31, 2011
Mastheads
|
Dec. 31, 2013
Mastheads
Minimum
|
Dec. 31, 2013
Mastheads
Maximum
|
Dec. 31, 2013
Goodwill-Broadcast
|
Dec. 31, 2012
Goodwill-Broadcast
|
Dec. 31, 2011
Goodwill-Broadcast
|
Dec. 31, 2013
Goodwill-Broadcast
Networks
|
Dec. 31, 2012
Goodwill-Broadcast
Networks
|
Dec. 31, 2011
Goodwill-Broadcast
Networks
|
|
| Goodwill And Other Intangible Assets [Line Items] | |||||||||||||||||||||||||||||
| Percentage of indefinite-lived intangible assets out of total assets | 70.00% | ||||||||||||||||||||||||||||
| Percentage of indefinite-lived intangible assets | 94.00% | 6.00% | |||||||||||||||||||||||||||
| Broadcast licenses renewal period | 8 years | ||||||||||||||||||||||||||||
| Discounted cash flow projection period | 10 years | ||||||||||||||||||||||||||||
| Excess of estimated fair value over carrying value, percentage | 63.00% | 113.00% | 101.60% | 25.00% | |||||||||||||||||||||||||
| Percentage of excess fair value over carrying value | 25.00% | ||||||||||||||||||||||||||||
| Impairment charges | $ 1.2 | $ 5.6 | $ 0.4 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0.1 | $ 0 | $ 0 | $ 0 | ||||||||||||||||
| Excess fair value estimate | 1.70% | ||||||||||||||||||||||||||||
| Royalty growth rate | 3.00% | 3.00% | 2.00% | 3.00% | 3.00% | 2.00% | 3.00% | ||||||||||||||||||||||
| Discount rate | 9.00% | 8.50% | 9.50% | 13.50% | 8.50% | 13.50% | 9.00% | 9.00% | 9.00% | 9.00% | 8.50% | 9.50% | 8.50% | 8.50% | 9.00% | 9.50% | 9.00% | 9.00% | 9.00% | ||||||||||
| Additional impairment charges | $ 0.3 | ||||||||||||||||||||||||||||