CONSOLIDATED CONDENSED BALANCE SHEETS (Unaudited) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
CURRENT ASSETS:
Cash and cash equivalents	$ 26,665	$ 15,062
Trade accounts receivable, net	259,146	237,626
Inventories	427,041	442,714
Prepaid expenses and other current assets	57,849	55,952
TOTAL CURRENT ASSETS	770,701	751,354
OTHER ASSETS	45,715	47,685
INTANGIBLE ASSETS, NET	10,869	11,578
GOODWILL	441,489	451,318
PROPERTY, PLANT AND EQUIPMENT:
Land	54,940	53,387
Buildings	334,459	339,732
Machinery and equipment	716,314	735,237
Construction in progress	77,513	41,999
Property, Plant and Equipment, Gross, Total	1,183,226	1,170,355
Less accumulated depreciation	(651,105)	(655,647)
Property, Plant and Equipment, Net, Total	532,121	514,708
TOTAL ASSETS	1,800,895	1,776,643
CURRENT LIABILITIES:
Trade accounts payable	88,552	96,283
Accrued salaries, wages and withholdings from employees	27,644	27,162
Other accrued expenses	60,834	56,946
Income taxes	5,943	3,797
Short-term borrowings	30,336	20,048
TOTAL CURRENT LIABILITIES	213,309	204,236
OTHER LIABILITIES	22,259	24,003
ACCRUED EMPLOYEE AND RETIREE BENEFITS	60,464	60,527
LONG-TERM DEBT	342,699	333,979
SHAREHOLDERS' EQUITY:
Common stock	5,396	5,396
Additional paid-in capital	99,437	98,253
Earnings reinvested in the business	1,181,306	1,150,092
Treasury stock, at cost	(93,712)	(95,258)
Accumulated other comprehensive loss	(30,263)	(4,585)
TOTAL SHAREHOLDERS' EQUITY	1,162,164	1,153,898
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 1,800,895	$ 1,776,643