Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012		Mar. 31, 2011
Condensed Consolidated Statements Of Operations [Abstract]
Net sales	$ 657,879		$ 611,020
Operating costs and expenses:
Cost of sales	437,471		397,850
Selling, general and administrative	140,848		140,310
Operating profit	79,560		72,860
Other income (expense):
Interest income	395		290
Interest expense	(6,711)		(6,622)
Miscellaneous - net	(347)	[1]	3,625	[1]
Operating income (expense), total	(6,663)		(2,707)
Income before income taxes	72,897		70,153
Provision for income taxes	21,101		21,775
Net income before allocation to noncontrolling interests	51,796		48,378
Less: Noncontrolling interest in subsidiaries' earnings (losses)	134		(89)
Net income attributable to common shareholders	$ 51,662		$ 48,467
Earnings per basic share	$ 0.89		$ 0.83
Earnings per diluted share	$ 0.88		$ 0.81
Average basic shares outstanding	57,889		58,330
Average diluted shares outstanding	58,880		59,552
Dividends per share	$ 0.26		$ 0.23

[1] Primarily related to the sale of a building in the three months ended March 31, 2011.