Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Assets
Cash and cash equivalents	$ 44,167	$ 68,939
Accounts and other receivables, net of allowance for doubtful accounts and sales returns of $3,143 in 2012 and $3,539 in 2011	95,666	98,027
Income taxes recoverable		2,592
Inventories	66,272	61,290
Deferred income taxes	6,437	7,135
Prepaid expenses and other	7,178	7,880
Total current assets	219,720	245,863
Property, plant and equipment, at cost	744,076	745,762
Less accumulated depreciation	507,682	488,488
Net property, plant and equipment	236,394	257,274
Goodwill and other intangibles, net	214,477	223,432
Other assets and deferred charges	67,290	54,041
Total assets	737,881	780,610
Liabilities and Shareholders' Equity
Accounts payable	68,379	73,742
Accrued expenses	43,531	41,997
Income tax payable	1,852
Total current liabilities	113,762	115,739
Long-term debt	80,000	125,000
Deferred income taxes	68,989	70,754
Other noncurrent liabilities	68,232	72,210
Total liabilities	330,983	383,703
Commitments and contingencies (Notes 1, 3 and 12)
Shareholders' equity:
Common stock, no par value (issued and outstanding - 32,122,794 at September 30, 2012 and 32,057,281 at December 31, 2011)	16,168	14,357
Common stock held in trust for savings restoration plan	(1,351)	(1,343)
Foreign currency translation adjustment	818	11,693
Gain (loss) on derivative financial instruments	870	(406)
Pension and other postretirement benefit adjustments	(85,854)	(90,672)
Retained earnings	476,247	463,278
Total shareholders' equity	406,898	396,907
Total liabilities and shareholders' equity	$ 737,881	$ 780,610