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Accounts Payable and Accrued Expenses (Tables)
6 Months Ended
Jun. 30, 2015
Payables and Accruals [Abstract]  
Summary of Accounts Payable and Accrued Expenses
     June 30,
2015
     December 31,
2014
 

Trade accounts payable, including due to subcontractors

   $ 34,303       $ 31,882   

Compensation and related benefits

     2,121         2,976   

Accrued interest

     38         193   

Current portion of earn-out liability

     13,205         8,738   

Accrued warranty

     778         936   

Other accrued expenses

     6,059         6,737   
  

 

 

    

 

 

 
   $ 56,504       $ 51,462