Inventories (Tables)

3 Months Ended

Mar. 31, 2017

Inventory Disclosure [Abstract]

Schedule of Inventories

The following table summarizes inventories by major classification: 

	March 31, 2017		December 31, 2016
	(in thousands)
Finished goods	$	174,430	$	142,333
Raw materials	2,728		654
Work-in-progress	1,309		4,042
Total inventories	$	178,467	$	147,029