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Summary of Significant Accounting Policies, Classification of Venezuela as a Highly Inflationary Economy and Devaluation of Its Currency (Details)
$ in Thousands
 3 Months Ended 12 Months Ended
Jun. 30, 2014
USD ($)
VEB / $
Mar. 31, 2014
USD ($)
VEB / $
Mechanism
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Mar. 31, 2015
VEB / $
Dec. 31, 2013
USD ($)
Operations in Venezuela [Abstract]              
Total assets     $ 1,474,045 $ 1,505,843      
Monetary assets     357,246 289,354 $ 288,415   $ 525,153
Operations in Venezuela [Abstract]              
Foreign currency transaction losses on net monetary assets denominated in bolivar       10,200 $ 46,300    
Other Income (Expense), Net [Member]              
Operations in Venezuela [Abstract]              
Foreign currency transaction losses on net monetary assets denominated in bolivar $ 25,300 $ 14,700   10,200      
Venezuela [Member]              
Operations in Venezuela [Abstract]              
Total assets     0 7,900      
Monetary assets     0 4,300      
Operations in Venezuela [Abstract]              
Number of foreign exchange mechanisms | Mechanism   2          
SICAD I [Member] | Venezuela [Member]              
Operations in Venezuela [Abstract]              
Foreign currency exchange rate for SIMADI | VEB / $   10.7          
SICAD II [Member] | Venezuela [Member]              
Operations in Venezuela [Abstract]              
Foreign currency exchange rate for SIMADI | VEB / $ 50            
SIMADI [Member] | Venezuela [Member]              
Operations in Venezuela [Abstract]              
Foreign currency exchange rate for SIMADI | VEB / $           193  
Correct Certain Accounting Errors for Hyper-Inflationary Adjustments with Respect to Operations in Venezuela [Member]              
Operations in Venezuela [Abstract]              
Out-of-period adjustment to income statement     6,300        
Subsidiary [Member] | Venezuela [Member]              
Operations in Venezuela [Abstract]              
Payable to parent company     $ 0 $ 33,700      
Sales Revenue [Member] | Geographic Concentration Risk [Member]              
Operations in Venezuela [Abstract]              
Concentration risk percentage     0.10% 0.20% 1.00%