Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 190,718	$ 118,909
Accounts receivable, less allowance for doubtful accounts	171,535	147,511
Inventories	119,183	129,803
Income taxes receivable and deferred	20,594	30,010
Prepaid expenses and other current assets	10,435	13,349
Current assets of discontinued operations		67,351
Total current assets	512,465	506,933
Property, plant and equipment, at cost, net	420,154	438,953
Intangibles	848	1,079
Goodwill	76,522	75,469
Deferred taxes and taxes receivable	123,886	134,644
Other assets	22,822	23,383
Noncurrent assets of discontinued operations		50,467
Total assets	1,156,697	1,230,928
Current liabilities:
Notes and loans payable	586	424
Accounts payable	35,117	32,708
Accrued liabilities	103,257	105,104
Current maturities of long-term debt	83,276	1,263
Income taxes payable and deferred	13,552	8,766
Current liabilities of discontinued operations		22,446
Total current liabilities	235,788	170,711
Long-term debt	235,877	373,125
Other noncurrent liabilities	136,012	185,596
Deferred taxes and other credits	55,509	71,529
Noncurrent liabilities of discontinued operations		14,117
Total liabilities	663,186	815,078
Commitments and Contingencies
Shareholders' Equity
Preferred stock, par value $5.00 per share; authorized 2,000,000 shares; none issued
Common Stock	40	40
Additional paid-in capital	395,381	391,495
Retained earnings	435,775	422,044
Accumulated items of other comprehensive income/(loss):
Translation adjustments	(7,659)	(19,111)
Pension and postretirement liability adjustments	(69,484)	(118,104)
Derivative valuation adjustment	(2,878)	(2,594)
Treasury stock (Class A), at cost; 8,467,873 shares in 2012 and 8,479,487 shares in 2011	(257,664)	(257,920)
Total shareholders' equity	493,511	415,850
Total liabilities and shareholders' equity	1,156,697	1,230,928
Common Class A [Member]
Shareholders' Equity
Common Stock	37	37
Common Class B [Member]
Shareholders' Equity
Common Stock	$ 3	$ 3