CONDENSED CONSOLIDATED STATEMENTS OF FINANCIAL POSITION (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Current assets
Cash and cash equivalents	$ 203,945	$ 191,785
Accounts receivable, less allowance for credit losses of $1,319 and $1,682	157,471	134,421
Contract assets	30,285	26,575
Inventories	110,761	102,360
Prepaid income taxes	2,904	2,960
Asbestos-related insurance receivables, current portion	2,986	2,986
Other current assets	16,773	13,088
Total current assets	525,125	474,175
Property, plant and equipment, net of accumulated depreciation of $363,927 and $365,844	282,543	272,378
Investments in unconsolidated joint ventures	16,904	15,248
Deferred income taxes	25,986	28,667
Goodwill	267,192	270,172
Other intangible assets, net of amortization	111,404	118,026
Pension assets	5,694	5,278
Asbestos-related insurance receivables, non-current portion	63,807	63,807
Other long-term assets	14,821	16,254
Total assets	1,313,476	1,264,005
Current liabilities
Accounts payable	53,471	35,987
Accrued employee benefits and compensation	43,915	41,708
Accrued income taxes payable	5,177	8,558
Asbestos-related liabilities, current portion	3,615	3,615
Other accrued liabilities	20,844	21,641
Total current liabilities	127,022	111,509
Borrowings under revolving credit facility	0	25,000
Pension and other postretirement benefits liabilities	1,658	1,612
Asbestos-related liabilities, non-current portion	69,469	69,620
Non-current income tax	16,930	16,346
Deferred income taxes	9,537	8,375
Other long-term liabilities	12,198	10,788
Commitments and contingencies (Note 10 and Note 12)
Shareholders’ equity
Capital stock - $1 par value; 50,000 authorized shares; 18,722 and 18,677 shares issued and outstanding	18,722	18,677
Additional paid-in capital	154,330	147,961
Retained earnings	933,565	873,692
Accumulated other comprehensive loss	(29,955)	(19,575)
Total shareholders' equity	1,076,662	1,020,755
Total liabilities and shareholders' equity	$ 1,313,476	$ 1,264,005