CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Current Assets:
Cash and cash equivalents	$ 63,146	$ 72,308
Receivables, net	250,909	253,269
Income tax receivable	8,430	8,454
Inventories	240,907	218,475
Deferred income tax assets	1,542	574
Other current assets	9,956	7,368
Total current assets	574,890	560,448
Property, plant and equipment, net	405,299	401,673
Goodwill	334,268	354,319
Other assets, net	111,310	118,779
Total assets	1,425,767	1,435,219
Current liabilities:
Accounts payable	82,817	88,391
Current portion of long-term debt	32,813	26,250
Accrued liabilities:
Payroll and benefits	17,516	17,997
Warranty expenses	6,130	6,182
Taxes payable	11,187	8,156
Other	31,307	33,983
Total current liabilities	181,770	180,959
Long-term debt	287,326	300,454
Deferred income tax liabilities	6,290	5,848
Postretirement benefits	4,559	4,506
Pension benefits	113,887	112,121
Other liabilities	17,523	17,360
Commitments and Contingencies (Note 13)
Shareholders' equity:
Common stock, $1.00 par value per share; 120,000,000 shares authorized; 35,414,181 and 35,383,999 shares issued respectively	35,414	35,384
Capital in excess of par	324,474	320,445
Retained earnings	581,795	566,890
Treasury stock, 1,815,648 and 1,815,648 shares, respectively, at cost	(34,729)	(34,729)
Accumulated other comprehensive loss	(92,542)	(74,019)
Total shareholders' equity	814,412	813,971
Total liabilities and shareholders' equity	$ 1,425,767	$ 1,435,219