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Property, Plant And Equipment (Tables)
12 Months Ended
Dec. 31, 2018
Property, Plant and Equipment [Abstract]  
Components Of Property Plant And Equipment
Property, plant, and equipment consist of the following: 
 December 31,
 20182017
Land$41,937 $26,623 
Buildings332,150 267,256 
Machinery and equipment384,259 344,905 
Office furniture and fixtures65,775 55,885 
Construction-in-progress54,454 49,256 
Total property, plant and equipment878,575 743,925 
Accumulated depreciation(335,507)(283,719)
Total property, plant and equipment — net$543,068 $460,206 
Schedule of Long-Lived Assets
Long lived assets include property, plant and equipment, related deposits on such assets and demonstration equipment. The geographic locations of the Company's long-lived assets, net, based on physical location of the assets, as of  December 31, 2018, 2017, and 2016 are as follows: 
 December 31,
 20182017
United States$346,343 $273,947 
Russia76,359 87,612 
Germany81,218 83,826 
China9,123 8,191 
Other40,689 20,278 
Total $553,732 $473,854