v2.3.0.15

Earnings Per Share, Textuals (Details) (USD $) In Millions, except Share data	1 Months Ended	3 Months Ended	9 Months Ended
	Jun. 30, 2008	Mar. 31, 2010	Sep. 30, 2011	Sep. 30, 2010
Earnings Per Share (Textuals)
Options outstanding to purchase common shares			20,791
Average exercise price per share			$ 80.01
Potential dilutive effect of shares underlying the options			0
Number of common shares underlying the Warrants outstanding			3,600,000
Average Exercise price of common shares underlying warrants			$ 61.36
Potential dilutive effect of shares underlying the Warrants			0
Payment of cash dividends to stockholders			$ 14.1	$ 14.3
Cash dividend paid per share			$ 0.72	$ 0.72
Amount authorized by Board to be repurchased	75.0
Common stock available for repurchase			46.9
Common stock repurchased, shares		1,151,900
Cost of common stock repurchased		$ 44.2

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