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Intangible assets, net (Tables)
12 Months Ended
Dec. 31, 2013
Goodwill And Intangible Assets Disclosure [Abstract]  
Summary of Estimated Amortization Expense on Intangible Assets

The estimated amortization expense on intangible assets in years subsequent to December 31, 2013, is as follows:

 

2014

   $ 1,333   

2015

     1,182   

2016

     1,030   

2017

     879   

2018

     726   

Thereafter

   $ 1,685