Income Taxes (Tables)

3 Months Ended

Mar. 31, 2012

Income Taxes

Schedule of consolidated effective federal and state income tax rates

	Three Months Ended						Twelve Months Ended
	2012			2011			2012			2011
Consolidated provision for income taxes	$	6.2		$	7.3		$	33.3		$	27.8
Consolidated effective federal and state income tax rates	38.7		%	37.8		%	38.6		%	35.4		%