Consolidated Balance Sheets (Unaudited) (USD $) In Thousands	Jul. 01, 2011	Dec. 31, 2010
Current assets
Cash and cash equivalents	$ 9,461	$ 16,104
Accounts receivable	149,386	139,374
Other receivables	2,679	3,972
Inventories	182,389	154,467
Prepaid expenses	37,468	31,743
Deferred income taxes	10,241	10,065
Total current assets	391,624	355,725
Related-party notes receivable	90	90
Long-term deferred income taxes	2,042	2,042
Property, plant and equipment - cost	731,727	719,953
Less allowances for depreciation, depletion and amortization	(473,743)	(454,085)
Property, plant and equipment - net	257,984	265,868
Intangible assets	34,207	36,849
Other assets	7,831	1,900
Goodwill	72,936	72,936
Total assets	766,714	735,410
Current liabilities
Short-term debt	39,331	47,835
Accounts payable	37,912	33,375
Salaries and wages	22,181	34,035
Taxes other than income taxes	256	905
Other liabilities and accrued items	26,705	24,911
Unearned revenue	2,835	2,378
Income taxes	0	3,921
Total current liabilities	129,220	147,360
Other long-term liabilities	18,092	17,915
Retirement and post-employment benefits	81,588	82,502
Unearned income	59,724	57,154
Long-term income taxes	2,905	2,906
Deferred income taxes	4,010	4,912
Long-term debt	55,693	38,305
Shareholders' equity	415,482	384,356
Total liabilities and shareholders' equity	$ 766,714	$ 735,410