Inventories (Tables)

6 Months Ended

Jun. 30, 2019

Inventory Disclosure [Abstract]

Schedule of inventory

Inventories consist of the following at June 30, 2019 and December 31, 2018 (in thousands):

	June 30, 2019		December 31, 2018
Raw materials (1)	$	123,819	$	122,825
Work-in-process (1)	70,377		70,458
Finished goods (1)	141,694		128,896
Total	$	335,890	$	322,179

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(1) The components of inventory shown in the table above are net of allowance for obsolescence.