Consolidated Condensed Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Current assets:
Cash	$ 6,661	$ 4,975
Receivables	51,053	41,168
Inventories:
Finished goods	12,718	13,476
Work in process	13,169	11,377
Raw materials	32,029	24,583
Total inventories	57,916	49,436
Prepaid expenses and other current assets	3,694	2,266
Deferred income taxes	4,081	3,350
Total current assets	123,405	101,195
Property, plant and equipment, at cost	150,759	144,928
Less accumulated depreciation	(80,750)	(78,826)
Net property, plant and equipment	70,009	66,102
Intangible assets, at cost less accumulated amortization	62,825	33,680
Other assets	6,087	6,259
Deferred income taxes	0	2,309
Goodwill	34,612	9,365
Total assets	296,938	218,910
Current liabilities:
Short-term debt	63,989	1,790
Payables	18,166	11,365
Accrued compensation and employee benefits	8,047	6,734
Warranty and after-sale costs	1,406	1,593
Income and other taxes	4,465	931
Total current liabilities	96,073	22,413
Other long-term liabilities	6,670	1,078
Deferred income taxes	10,447	0
Accrued non-pension postretirement benefits	6,117	6,103
Other accrued employee benefits	9,856	10,035
Commitments and contingencies (Note 6)
Shareholders' equity:
Common stock	20,786	21,292
Capital in excess of par value	39,940	39,445
Reinvested earnings	153,644	166,271
Accumulated other comprehensive loss	(13,664)	(14,566)
Less: Employee benefit stock	(1,262)	(1,485)
Treasury stock, at cost	(31,669)	(31,676)
Total shareholders' equity	167,775	179,281
Total liabilities and shareholders' equity	$ 296,938	$ 218,910