Inventories (Tables)

12 Months Ended

Dec. 31, 2016

Inventory Disclosure [Abstract]

Schedule of Inventories

Inventories consisted of the following:

	December 31,		December 31,
	2016		2015
	(U.S. $ in thousands)
Finished goods	$	62,728	$	82,219
Work-in-process		2,389		2,944
Raw materials		52,404		38,495
	$	117,521	$	123,658