Consolidated Condensed Statement of Cash Flow (Parenthetical) (USD $)	9 Months Ended
	Sep. 30, 2012		Sep. 30, 2011
Gains on divestitures, net of tax			$ 9,900,000
Shares repurchased under the share repurchase program, value	98,902,000	[1]	920,000
Stock Repurchase Authorization [Member]
Shares repurchased under the share repurchase program, value	$ 96,400,000

[1] 2012 includes $96.4 million repurchased under the share repurchase program launched in fourth quarter 2011.