CONDENSED CONSOLIDATED STATEMENTS OF FINANCIAL POSITION (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Current assets
Cash and cash equivalents	$ 93,517	$ 79,728
Accounts receivable, less allowance for doubtful accounts of $1,095 and $1,040	77,687	77,682
Accounts receivable from joint ventures	1,727	1,640
Accounts receivable, other	3,536	3,819
Taxes receivable	2,843	2,713
Inventories	81,347	78,320
Prepaid income taxes	4,418	4,315
Deferred income taxes	1,820	2,146
Asbestos-related insurance receivables	6,471	6,459
Assets held for sale	1,400	1,400
Other current assets	10,207	7,360
Assets of discontinued operations		50
Total current assets	284,973	265,632
Property, plant and equipment, net of accumulated depreciation of $206,463 and $198,075	148,368	148,182
Investments in unconsolidated joint ventures	21,637	23,868
Deferred income taxes	22,881	20,117
Goodwill and other intangibles	160,817	158,627
Asbestos-related insurance receivables	21,261	21,943
Investments, other	5,000	5,000
Other long-term assets	8,409	8,299
Long-term marketable securities		25,960
Total assets	673,346	677,628
Current liabilities
Accounts payable	17,208	15,787
Accrued employee benefits and compensation	34,712	30,135
Accrued income taxes payable	639	1,799
Current portion of lease obligation	1,634	1,596
Current portion of long term debt	25,750	7,500
Asbestos-related liabilities	6,471	6,459
Other accrued liabilities	10,536	15,368
Liabilities of discontinued operations		153
Total current liabilities	96,950	78,797
Long term debt	95,500	115,000
Long term lease obligation	7,540	7,610
Pension liability	58,871	68,871
Retiree health care and life insurance benefits	9,486	9,486
Asbestos-related liabilities	21,468	22,326
Non-current income tax	18,176	17,588
Deferred income taxes	19,562	19,259
Other long-term liabilities	567	435
Shareholders' Equity
Capital Stock - $1 par value; 50,000,000 authorized shares; 16,268,268 and 16,220,648 shares outstanding	16,268	16,221
Additional paid-in capital	54,075	52,738
Retained earnings	330,291	332,099
Accumulated other comprehensive income (loss)	(55,408)	(62,802)
Total shareholders' equity	345,226	338,256
Total liabilities and shareholders' equity	$ 673,346	$ 677,628