Inventory (Tables)

3 Months Ended

Mar. 31, 2018

Inventory Disclosure [Abstract]

Schedule of Inventory

Our inventory consisted of the following (in thousands):

	March 31,		December 31,
	2018		2017
Raw materials	$	902,190	$	821,396
Work in process		315,227		243,181
Finished goods		1,125,665		1,013,909
Service parts		222,744		185,051
Total	$	2,565,826	$	2,263,537