Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Current assets
Cash and cash equivalents	$ 197,398	$ 86,356
Accounts receivable, less allowances (2013 - $2,528; 2012 - $2,858)	229,934	253,202
Inventories	186,224	226,220
Deferred income taxes	23,331	33,906
Prepaid expenses and other current assets	15,756	18,856
Total current assets	652,643	618,540
Deferred income taxes	37,318	29,961
Property, plant and equipment	583,303	634,464
Less accumulated depreciation	(368,568)	(401,367)
Property, plant and equipment, net	214,735	233,097
Goodwill	439,447	579,905
Other intangible assets, net	370,645	383,972
Other assets	20,182	23,121
Total assets	1,734,970	1,868,596
Current liabilities
Notes and overdrafts payable	12,899	3,795
Accounts payable	92,469	99,037
Accrued liabilities	227,191	96,364
Long-term debt - current	54,241	699
Total current liabilities	386,800	199,895
Long-term debt	177,242	642,119
Accrued retirement benefits	133,562	159,103
Deferred income taxes	47,222	48,707
Other liabilities	15,154	18,654
Commitments and contingencies (Note 14)
Stockholders' equity
Common stock - par value $0.01 per share Authorized: 150,000,000 shares Issued: at par value (2013 - 59,558,153 shares; 2012 - 59,202,029 shares)	596	592
Additional paid-in capital	350,998	332,588
Treasury stock, at cost (2013 - 7,155,763 shares; 2012 - 4,999,556 shares)	(161,941)	(99,756)
Retained earnings	845,333	633,446
Accumulated other non-owner changes to equity	(59,996)	(66,752)
Total stockholders' equity	974,990	800,118
Total liabilities and stockholders' equity	$ 1,734,970	$ 1,868,596