v2.4.0.6
Other Intangible Assets, Changes in Net Carrying Amount (Detail) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Gross amount    
Other intangible assets, beginning $ 34,256 $ 3,147
Intangible assets acquired during the period 20,369 31,106
Foreign currency translation effect on balances 282 3
Other intangible assets, ending 54,907 34,256
Accumulated amortization    
Other intangible assets, beginning (1,206) (188)
Other intangible assets acquired during the period      
Amortization expense (2,787) (1,018)
Foreign currency translation effect on balances (22)  
Other intangible assets, ending $ (4,015) $ (1,206)