CONDENSED CONSOLIDATED STATEMENTS OF FINANCIAL POSITION (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Current assets
Cash and cash equivalents	$ 216,458	$ 191,884
Accounts receivable, less allowance for doubtful accounts of $1,592 and $1,655	95,311	85,126
Accounts receivable from joint ventures	1,485	1,897
Accounts receivable, other	2,258	2,638
Taxes receivable	86	1,578
Inventories	64,291	66,889
Prepaid income taxes	4,543	5,519
Deferred income taxes	6,876	7,271
Asbestos-related insurance receivables	7,542	7,542
Other current assets	8,718	7,363
Total current assets	407,568	377,707
Property, plant and equipment, net of accumulated depreciation of $227,015 and $222,189	144,208	146,931
Investments in unconsolidated joint ventures	18,125	18,463
Deferred income taxes	45,550	44,854
Pension Asset	2,983	2,982
Goodwill	108,558	108,671
Other intangible assets	47,674	49,171
Asbestos-related insurance receivables	49,508	49,508
Investments, other	507	507
Other long-term assets	7,647	7,740
Total assets	832,328	806,534
Current liabilities
Accounts payable	21,369	17,534
Accrued employee benefits and compensation	23,175	29,724
Accrued income taxes payable	6,830	4,078
Current portion of lease obligation	850	849
Current portion of long term debt	18,750	17,500
Asbestos-related liabilities	7,542	7,542
Other accrued liabilities	15,248	12,813
Total current liabilities	93,764	90,040
Long term lease obligation	7,105	7,170
Long term debt	55,000	60,000
Pension liability	5,435	5,435
Retiree health care and life insurance benefits	9,649	9,649
Asbestos-related liabilities	52,205	52,205
Non-current income tax	10,479	10,208
Deferred income taxes	16,468	16,077
Other long-term liabilities	329	223
Shareholders’ Equity
Capital Stock - $1 par value; 50,000,000 authorized shares; 18,120,086 and 17,854,506 shares outstanding	18,120	17,855
Additional paid-in capital	122,257	110,577
Retained earnings	453,125	438,545
Accumulated other comprehensive income (loss)	(11,608)	(11,450)
Total shareholders' equity	581,894	555,527
Total liabilities and shareholders' equity	$ 832,328	$ 806,534