Inventories, Net (Tables)

6 Months Ended

Jun. 30, 2017

Inventory Disclosure [Abstract]

Schedule of Inventories Net

	June 30,			December 31,			June 30,
	2017			2016			2016
	(Dollars in Thousands)
Finished products	$	508,144		$	479,291		$	463,807
Products in process and raw materials		59,410			61,171			60,324
Supplies and expendable parts		120,594			116,024			113,110
		688,148			656,486			637,241
Less: Allowances		(138,283	)		(134,862	)		(132,364	)
Total	$	549,865		$	521,624		$	504,877