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Leases (Tables)
12 Months Ended
Dec. 31, 2013
Leases  
Future Minimum Lease Payment Schedule
   Capitalized Operating
Year Ended December 31, Equipment Leases Leases
        
2014 $ 2,040 $ 47,704
2015   1,673   46,557
2016   1,404   45,772
2017   1,184   45,174
2018   1,000   43,718
Thereafter    7,003   354,087
        
 Total minimum rentals    14,304 $ 583,012
Less amounts representing interest at rates ranging from 2.9% to 11.8%   3,454   
        
 Capital lease obligations  $ 10,850