Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Assets
Cash and cash equivalents	$ 77,489	$ 62,505
Accounts receivable, less allowances (2012 - $3,036; 2011 - $2,898)	205,642	200,460
Inventories	216,906	216,520
Deferred income taxes	27,363	28,829
Prepaid expenses and other current assets	24,623	21,680
Total current assets	552,023	529,994
Deferred income taxes	44,452	47,661
Property, plant and equipment	614,298	603,383
Less accumulated depreciation	(401,238)	(392,599)
Property, plant and equipment, net	213,060	210,784
Goodwill	372,498	366,104
Other intangible assets, net	269,158	272,092
Other assets	14,227	13,730
Total assets	1,465,418	1,440,365
Liabilities and Stockholders' Equity
Notes and overdrafts payable	5,719	12,364
Accounts payable	92,686	92,524
Accrued liabilities	60,734	92,250
Long-term debt - current	540	540
Total current liabilities	159,679	197,678
Long-term debt	369,550	333,148
Accrued retirement benefits	151,095	152,696
Other liabilities	35,666	34,443
Commitments and contingencies (Note 12)
Stockholders' Equity
Common Stock - par value $0.01 per share Authorized: 150,000,000 shares Issued: at par value (2012 - 58,901,385 shares; 2011 - 55,593,802 shares)	589	586
Additional paid in capital	322,281	316,251
Treasury stock, at cost (2012 - 4,680,118 shares; 2011 - 4,254,350 shares)	(91,393)	(79,569)
Retained earnings	576,855	560,186
Accumulated other non-owner changes to equity	(58,904)	(75,054)
Total stockholders' equity	749,428	722,400
Total liabilities and stockholders' equity	$ 1,465,418	$ 1,440,365