CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Current Assets:
Cash and cash equivalents	$ 62,705	$ 38,438
Receivables, net	235,763	216,607
Income tax receivable	6,672	6,732
Inventories	192,564	166,148
Deferred income tax assets	1,724	1,140
Other current assets	10,381	6,417
Total current assets	509,809	435,482
Property, plant and equipment, net	371,171	346,430
Goodwill, net	336,320	232,932
Other assets, net	129,708	81,861
Total assets	1,347,008	1,096,705
Current liabilities:
Accounts payable	93,640	65,065
Current portion of long-term debt	19,688	17,500
Accrued liabilities:
Payroll and benefits	16,607	17,610
Warranty expenses	5,852	4,847
Taxes payable	12,947	10,536
Other	23,449	26,194
Total current liabilities	172,183	141,752
Long-term debt	295,156	332,500
Deferred income tax liabilities	4,954	3,886
Postretirement benefits	7,532	7,515
Other liabilities	110,553	103,519
Shareholders' equity:
Common stock, $1.00 par value per share; 120,000,000 shares authorized 35,357,233 and 32,317,467 shares issued, respectively	35,357	32,318
Capital in excess par	314,649	87,598
Retained earnings	508,518	501,455
Treasury stock, 1,822,336 and 1,824,336 shares, respectively, at cost	(34,827)	(34,902)
Accumulated other comprehensive loss	(67,067)	(78,936)
Total shareholders' equity	756,630	507,533
Total liabilities and shareholders' equity	$ 1,347,008	$ 1,096,705