Acquisitions (Tables)

3 Months Ended

Mar. 31, 2012

Acquisitions [Abstract]

Pro Forma Results

	Three Months Ended March 31,
(in millions, except per share data)	2011
Revenue	$	1,067.5
Net income (loss)	$	(25.5)
Net income (loss) per share - basic	$	(0.56)
Net income (loss) per share - diluted	$	(0.56)
Weighted average shares outstanding - basic		45.3
Weighted average shares outstanding - diluted		45.3