Commitments and Contingencies (Narrative Milestone Commitments) (Details) In Millions, unless otherwise specified	9 Months Ended				9 Months Ended
	Jan. 25, 2013 Flint Hills Scientific [Member] USD ($)	Jan. 25, 2013 Im Thera Medical Inc [Member] USD ($)	Jan. 25, 2013 Imricor Medical Systems [Member] USD ($)	Jan. 25, 2013 Cerbomed GmbH [Member] EUR (€)	Jan. 25, 2013 Costa Rica facility Member] USD ($)
Long-term Purchase Commitment [Line Items]
Cancellable milestone commitments	$ 3.0	$ 4.0	$ 4.3	€ 3.5
Milestone time period	2018	2013	2018
Future expenditures under construction contract					$ 1.3
Projected end date of construction contract					August 2013