Inventories (Tables)

6 Months Ended

Jun. 30, 2017

Inventories [Abstract]

Inventories

Inventories consist of the following:

	June 30, 2017		December 31, 2016
Raw materials and parts	$	141,103	$	137,763
Work-in-process		135,909		115,613
Finished goods		79,217		84,898
Used equipment		25,094		22,130
Total	$	381,323	$	360,404