CONSOLIDATED BALANCE SHEETS (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
ASSETS
Cash and cash equivalents	$ 157,046	$ 122,301
Accounts receivable, net	178,788	176,716
Inventories	179,729	156,171
Income taxes receivable and deferred	43,448	39,721
Prepaid expenses and other current assets	14,619	11,883
Total current assets	573,630	506,792
Property, plant and equipment, net	484,301	488,121
Investments in associated companies	3,254	2,926
Intangibles	3,351	4,182
Goodwill	122,542	115,616
Deferred taxes	142,638	141,701
Other assets	18,344	18,955
Total assets	1,348,060	1,278,293
LIABILITIES AND SHAREHOLDERS' EQUITY
Notes and loans payable	1,246	1,587
Accounts payable	51,895	44,294
Accrued liabilities	110,864	110,292
Current maturities of long-term debt	12	12
Income taxes payable and deferred	14,960	9,670
Total current liabilities	178,977	165,855
Long-term debt	417,012	423,647
Other noncurrent liabilities	192,718	190,493
Deferred taxes and other credits	73,185	72,038
Total liabilities	861,892	852,033
Commitments and Contingencies
SHAREHOLDERS' EQUITY
Preferred stock, par value $5.00 per share; authorized 2,000,000 shares; none issued
Common Stock	40	39
Additional paid in capital	389,393	387,876
Retained earnings	420,729	403,048
Accumulated items of other comprehensive income:
Translation adjustments	33,830	(6,041)
Pension and post retirement liability adjustments	(98,703)	(100,355)
Derivative valuation adjustment	(1,201)	(276)
Treasury stock (Class A), at cost 8,479,487 shares in 2011 and 8,484,528 shares in 2010	(257,920)	(258,031)
Total shareholders' equity	486,168	426,260
Total liabilities and shareholders' equity	1,348,060	1,278,293
Class A Common Stock [Member]
SHAREHOLDERS' EQUITY
Common Stock	37	36
Class B Common Stock [Member]
SHAREHOLDERS' EQUITY
Common Stock	$ 3	$ 3