CONSOLIDATED CONDENSED BALANCE SHEETS (Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
CURRENT ASSETS:
Cash and cash equivalents	$ 19,470	$ 15,062
Trade accounts receivable, net	254,451	237,626
Inventories	425,061	442,714
Prepaid expenses and other current assets	57,108	55,952
TOTAL CURRENT ASSETS	756,090	751,354
OTHER ASSETS	47,418	47,685
INTANGIBLE ASSETS, NET	11,133	11,578
GOODWILL	441,124	451,318
PROPERTY, PLANT AND EQUIPMENT:
Land	54,017	53,387
Buildings	333,164	339,732
Machinery and equipment	715,418	735,237
Construction in progress	52,883	41,999
Property, Plant and Equipment, Gross, Total	1,155,482	1,170,355
Less accumulated depreciation	(643,235)	(655,647)
Property, Plant and Equipment, Net, Total	512,247	514,708
TOTAL ASSETS	1,768,012	1,776,643
CURRENT LIABILITIES:
Trade accounts payable	81,970	96,283
Accrued salaries, wages and withholdings from employees	24,342	27,162
Other accrued expenses	59,848	56,946
Income taxes	7,529	3,797
Short-term borrowings	32,769	20,048
TOTAL CURRENT LIABILITIES	206,458	204,236
OTHER LIABILITIES	25,028	24,003
ACCRUED EMPLOYEE AND RETIREE BENEFITS	60,939	60,527
LONG-TERM DEBT	327,625	333,979
SHAREHOLDERS' EQUITY:
Common stock	5,396	5,396
Additional paid-in capital	98,997	98,253
Earnings reinvested in the business	1,160,532	1,150,092
Treasury stock, at cost	(94,325)	(95,258)
Accumulated other comprehensive loss	(22,638)	(4,585)
TOTAL SHAREHOLDERS' EQUITY	1,147,962	1,153,898
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 1,768,012	$ 1,776,643