Indebtedness (Details) In Thousands, unless otherwise specified	Dec. 31, 2011 USD ($)	Dec. 31, 2010 USD ($)	Dec. 31, 2011 Note payable to Fumedica [Member] USD ($)	Dec. 31, 2010 Note payable to Fumedica [Member] USD ($)	Dec. 31, 2006 Note payable to Fumedica [Member] CHF	Dec. 31, 2011 Credit line from Dompe [Member] USD ($)	Dec. 31, 2010 Credit line from Dompe [Member] USD ($)	Dec. 31, 2011 6.0% Senior notes due 2013 [Member] USD ($)	Dec. 31, 2010 6.0% Senior notes due 2013 [Member] USD ($)	Dec. 31, 2011 6.875% Senior notes due 2018 [Member] USD ($)	Dec. 31, 2010 6.875% Senior notes due 2018 [Member] USD ($)	Dec. 31, 2011 Financing arrangements [Member] USD ($)	Dec. 31, 2010 Financing arrangements [Member] USD ($)
Current portion:
Current portion of notes payable, line of credit and other financing arrangements	$ 3,292	$ 137,153	$ 3,300	$ 3,300		$ 0	$ 8,000					$ 0	$ 125,900
Non-current portion:
Non-current portion of notes payable, line of credit and other financing arrangements	$ 1,060,808	$ 1,066,379	$ 16,400	$ 18,700	61,400			$ 449,900	$ 449,800	$ 592,300	$ 597,900	$ 2,200	$ 0