Inventories:

3 Months Ended

Mar. 31, 2020

Inventory Disclosure [Abstract]

Inventories [Text Block]

Inventories

Inventories are stated at the lower of cost or net realizable value with cost determined using the first-in, first-out method. Inventory costs consist of those costs directly attributable to products prior to sale including among other things raw material, labor and overhead. Inventories consisted of the following (in thousands): 

	March 31, 2020		December 31, 2019
Raw materials	$	121,674	$	119,709
Work in process	36,291		39,515
Finished goods	153,639		178,416
Total inventories	$	311,604	$	337,640