Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2019

Summary of Significant Accounting Policies [Abstract]

Inventories

Inventories consist of the following (U.S. dollars in thousands):

	March 31, 2019		December 31, 2018
Raw materials	$	89,984	$	91,610
Finished goods		214,327		204,211
Total Inventory, net	$	304,311	$	295,821