Consolidated Condensed Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 51,402	$ 72,273
Receivables	61,642	61,689
Inventories:
Finished goods	27,967	24,881
Work in process	14,094	16,841
Raw materials	42,190	39,864
Total inventories	84,251	81,586
Prepaid expenses and other current assets	6,817	5,303
Total current assets	204,112	220,851
Property, plant and equipment, at cost	217,193	217,404
Less accumulated depreciation	(135,109)	(134,699)
Net property, plant and equipment	82,084	82,705
Intangible assets, at cost less accumulated amortization	72,119	53,598
Other assets	18,063	17,428
Deferred income taxes	5,081	5,090
Goodwill	104,836	88,708
Total assets	486,295	468,380
Current liabilities:
Payables	40,014	34,923
Accrued compensation and employee benefits	11,505	14,617
Warranty and after-sale costs	12,458	11,617
Other current liabilities	7,789	4,042
Total current liabilities	71,766	65,199
Other long-term liabilities	26,324	25,283
Deferred income taxes	6,057	5,696
Accrued non-pension postretirement benefits	5,786	5,789
Other accrued employee benefits	6,513	5,154
Commitments and contingencies (Note 5)
Shareholders’ equity:
Common stock	37,221	37,221
Capital in excess of par value	45,599	44,964
Reinvested earnings	323,383	314,850
Accumulated other comprehensive income	602	1,313
Less: Treasury stock, at cost	(36,956)	(37,089)
Total shareholders’ equity	369,849	361,259
Total liabilities and shareholders’ equity	$ 486,295	$ 468,380