Annual report pursuant to Section 13 and 15(d)

Percentage Within Range by Which Fair Value Exceeded Carrying Value of Accounting Units, Including Goodwill (Detail)

v2.4.0.8
Percentage Within Range by Which Fair Value Exceeded Carrying Value of Accounting Units, Including Goodwill (Detail) (Internet and Publishing, USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Entity
Dec. 31, 2012
Entity
Dec. 31, 2011
Entity
Less than or equal 5%
      
Carrying Amounts and Fair Values of Financial Instruments [Line Items]      
Number of accounting units 2   1
Carrying value $ 28,707   $ 1,123
>6% To 10%
      
Carrying Amounts and Fair Values of Financial Instruments [Line Items]      
Number of accounting units     1
Carrying value     3,764
>11% To 40 %
      
Carrying Amounts and Fair Values of Financial Instruments [Line Items]      
Number of accounting units 2 2 1
Carrying value 5,107 28,722 22,757
> than 40%
      
Carrying Amounts and Fair Values of Financial Instruments [Line Items]      
Number of accounting units   2 1
Carrying value   $ 2,103 $ (46)