Inventories (Tables)

9 Months Ended

Sep. 30, 2014

Inventory Disclosure [Abstract]

Major classes of inventories

Major classes of inventories are summarized as follows:

	September 30, 2014		December 31, 2013
Finished goods	$	268,767	$	167,577
Service parts	135,486		132,508
Raw materials and work in process	115,546		76,377
Total inventories	$	519,799	$	376,462