Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Current assets
Cash and cash equivalents	$ 15,806	$ 24,236
Accounts receivable	118,826	97,236
Inventories	210,213	211,820
Prepaid expenses	13,871	12,799
Total current assets	358,716	346,091
Long-term deferred income taxes	26,655	25,743
Property, plant, and equipment	862,474	833,834
Less allowances for depreciation, depletion, and amortization	(602,084)	(570,205)
Property, plant, and equipment—net	260,390	263,629
Intangible assets	10,706	13,389
Other assets	4,925	6,716
Goodwill	86,725	86,725
Total Assets	748,117	742,293
Current liabilities
Short-term debt	12,803	8,990
Accounts payable	32,941	31,888
Salaries and wages	23,637	27,494
Other liabilities and accrued items	24,275	22,035
Income taxes	3,851	2,373
Unearned revenue	1,152	3,695
Total current liabilities	98,659	96,475
Other long-term liabilities	17,893	18,435
Retirement and post-employment benefits	84,003	92,794
Unearned income	42,515	45,953
Long-term income taxes	1,179	1,293
Deferred income taxes	142	110
Long-term debt	3,776	4,276
Serial preferred stock	0	0
Common stock	212,168	208,967
Retained earnings	513,020	499,659
Common stock in treasury	(153,899)	(148,559)
Accumulated other comprehensive loss	(75,353)	(80,705)
Other equity transactions	4,014	3,595
Total shareholders' equity	499,950	482,957
Total Liabilities and Shareholders’ Equity	$ 748,117	$ 742,293