CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
ASSETS
Cash and cash equivalents	$ 195,461	$ 222,666
Accounts receivable, net	147,483	163,547
Inventories	121,592	112,739
Deferred income taxes	13,666	13,873
Prepaid expenses and other current assets	9,238	9,659
Total current assets	487,440	522,484
Property, plant and equipment, net	408,096	418,830
Intangibles	443	616
Goodwill	74,022	78,890
Income taxes receivable and deferred	110,609	119,612
Other assets	31,331	26,456
Total assets	1,111,941	1,166,888
LIABILITIES AND SHAREHOLDERS' EQUITY
Notes and loans payable	551	625
Accounts payable	32,211	36,397
Accrued liabilities	100,809	112,331
Current maturities of long-term debt	15	3,764
Income taxes payable and deferred	5,898	5,391
Total current liabilities	139,484	158,508
Long-term debt	283,100	300,111
Other noncurrent liabilities	96,991	106,014
Deferred taxes and other credits	52,895	54,476
Total liabilities	572,470	619,109
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	418,546	416,728
Retained earnings	453,286	434,598
Accumulated items of other comprehensive income:
Translation adjustments	(30,841)	(138)
Pension and postretirement liability adjustments	(46,964)	(48,383)
Derivative valuation adjustment	(634)	(977)
Treasury stock (Class A), at cost 8,459,498 shares in 2014 and 8,463,635 in 2013	(257,481)	(257,571)
Total Company shareholders' equity	535,952	544,297
Noncontrolling interest	3,519	3,482
Total equity	539,471	547,779
Total liabilities and shareholders' equity	1,111,941	1,166,888
Common Class A [Member]
SHAREHOLDERS' EQUITY
Common Stock	37	37
Common Class B [Member]
SHAREHOLDERS' EQUITY
Common Stock	$ 3	$ 3