Inventories, Net (Tables)

12 Months Ended

Dec. 31, 2017

Inventory Disclosure [Abstract]

Schedule of Inventories Net

December 31

(add 000)	2017			2016
Finished products	$	552,999		$	479,291
Products in process and raw materials		62,761			61,171
Supplies and expendable parts		128,792			116,024
		744,552			656,486
Less allowances		(143,961	)		(134,862	)
Total	$	600,591		$	521,624