Indebtedness (Details Textual) In Millions, unless otherwise specified	12 Months Ended		1 Months Ended				12 Months Ended
	Dec. 31, 2014 USD ($)	Mar. 31, 2013 USD ($)	Dec. 31, 2008 6.875% Senior notes due 2018 USD ($)	Dec. 31, 2014 6.875% Senior notes due 2018 USD ($)	Dec. 31, 2013 6.875% Senior notes due 2018 USD ($)	Mar. 04, 2008 6.875% Senior notes due 2018 USD ($)	Dec. 31, 2014 6.875% Senior Notes due 2018 USD ($)	Dec. 31, 2014 Note payable to Fumedica USD ($)	Dec. 31, 2014 Note payable to Fumedica CHF	Dec. 31, 2013 Note payable to Fumedica USD ($)	Dec. 31, 2013 Note payable to Fumedica CHF	Dec. 31, 2006 Note payable to Fumedica CHF
Debt Instrument
Principal amount of senior notes						$ 550.0
Interest rate on senior notes						6.875%
Senior notes payment terms	100% of the principal amount plus accrued interest and a specified make-whole amount
Redemption percentage par value of senior notes						99.184%
Percentage of redemption of notes							100.00%
Increased carrying amount of interest rate swap			62.8
Interest to be amortized on debt							25.3
Notes payable and other financing arrangements	562.7			573.5	580.1			8.6		12.3		61.4
Par value of notes payable								11.7	11.6	15.8	14.0
Senior unsecured revolving credit facility maximum borrowing capacity		$ 750.0