Results of Discontinued Operations (Narrative) (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended
	Jan. 31, 2017	Mar. 31, 2017	Mar. 31, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) from discontinued operations, net of taxes		$ 20.2	$ 9.5
Settlement amount	$ 350.0
Legal settlements payment		345.5
Settlement agreement released from escrow		37.5
DERMAGRAFT | Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) from discontinued operations, net of taxes		(20.2)	9.5
Tax expense of discontinued operations		$ 11.6	$ 5.5