Annual report pursuant to Section 13 and 15(d)

Goodwill and Indefinite-Lived Intangible Assets - Reconciliation of Change in Carrying Value of Goodwill (Detail)

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Goodwill and Indefinite-Lived Intangible Assets - Reconciliation of Change in Carrying Value of Goodwill (Detail) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Goodwill And Intangible Assets Disclosure [Abstract]    
Beginning Balance $ 3,592,073   
Acquired from acquisitions    3,402,923
Foreign currency translation 73,126 189,150
Ending Balance $ 3,665,199 $ 3,592,073