Aggregate dividends declared during the period for each share of common stock outstanding.

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-Section 04

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Subsequent Events (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	0 Months Ended	1 Months Ended	12 Months Ended
	Feb. 23, 2012	Jan. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Subsequent Events [Abstract]
Cash dividend declared, per common share	$ 0.04		$ 0.08	$ 0.08	$ 0.08
Proceeds sold to unaffiliated third parties		$ 54.8
Pretax gain, lower range		40
Pretax gain, higher range		$ 43