XML 61 R27.htm IDEA: XBRL DOCUMENT v2.4.0.8
Accumulated Other Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive Income (Loss) (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Beginning Balance $ 2,454 $ 588
Foreign currency translation 45 (1,355)
Unrealized gain (loss) on investments before reclassification, net of tax 6 (46)
Reclassification adjustment for net loss realized in net income, net of tax 5   
Ending Balance 2,510 (813)
Net Unrealized Gain (Loss) on Marketable Investments [Member]
    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Beginning Balance 16 (1,024)
Foreign currency translation      
Unrealized gain (loss) on investments before reclassification, net of tax 6 (46)
Reclassification adjustment for net loss realized in net income, net of tax 5   
Ending Balance 27 (1,070)
Cumulative Translation Adjustment [Member]
    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Beginning Balance 2,438 1,612
Foreign currency translation 45 (1,355)
Unrealized gain (loss) on investments before reclassification, net of tax      
Reclassification adjustment for net loss realized in net income, net of tax      
Ending Balance $ 2,483 $ 257