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Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2013
Commitments and Contingencies [Abstract]  
Schedule of minimum rental commitments
 
 
 
Minimum
rental
commitments
 
2014
 
$
41,975
 
2015
 
 
39,740
 
2016
 
 
34,488
 
2017
 
 
29,114
 
2018
 
 
24,155
 
Thereafter
 
 
47,640
 
Total
 
$
217,112