Consolidated Condensed Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 199,310	$ 191,782
Receivables	92,287	83,507
Inventories:
Finished goods	37,414	34,764
Work in process	41,178	41,261
Raw materials	81,852	77,649
Total inventories	160,444	153,674
Prepaid expenses and other current assets	18,557	13,214
Total current assets	470,598	442,177
Property, plant and equipment, at cost	227,043	225,988
Less accumulated depreciation	(154,109)	(152,110)
Net property, plant and equipment	72,934	73,878
Intangible assets, at cost less accumulated amortization	52,471	53,737
Other assets	11,293	11,249
Deferred income taxes	22,704	22,715
Goodwill	113,474	113,163
Total assets	743,474	716,919
Current liabilities:
Payables	90,617	81,807
Accrued compensation and employee benefits	15,588	29,871
Warranty and after-sale costs	12,425	11,102
Other current liabilities	16,464	9,168
Total current liabilities	135,094	131,948
Long-term deferred revenue	54,181	49,763
Deferred income taxes	4,894	5,061
Accrued non-pension postretirement benefits	3,831	3,614
Other accrued employee benefits	5,404	5,293
Other long-term liabilities	4,503	4,758
Commitments and contingencies (Note 5)
Shareholders’ equity:
Common stock, $1 par, authorized 80,000,000, issued 37,221,098 shares in 2024 and 2023	37,221	37,221
Capital in excess of par value	60,468	59,185
Reinvested earnings	479,925	458,719
Accumulated other comprehensive loss	(5,268)	(1,646)
Less: Treasury stock, at cost, 7,827,368 shares in 2024 and 7,873,781 in 2023	(36,779)	(36,997)
Total shareholders’ equity	535,567	516,482
Total liabilities and shareholders’ equity	$ 743,474	$ 716,919