Inventories (Tables)

6 Months Ended

Jun. 30, 2020

Inventories

Schedule of Inventories

Inventory consisted of the following (in thousands):

	June 30,		December 31,
	2020		2019
Raw materials	$	589,122	$	686,831
Supplies		483,323		498,298
Work in progress		150,139		154,669
Finished goods		344,433		349,245
Total inventories	$	1,567,017	$	1,689,043