Litigation (Details) In Millions, unless otherwise specified	9 Months Ended	12 Months Ended			12 Months Ended
	Sep. 30, 2012	Dec. 31, 2012 EUR (€)	Jun. 08, 2010 USD ($)	Dec. 31, 2006 USD ($)	Dec. 31, 2012 Canada Lease Dispute [Member] USD ($)
Loss Contingencies [Line Items]
Compensatory damages					$ 7.0
Plaintiffs estimated expert report of damages					2.5
Cost seeks for damages					0.4
Litigation Details (Textual) [Abstract]
Notice of Assessment under consideration for corporate excise tax			103.5	38.9
Stipulated royalty rate	0.50%
Damages claimed		€ 181.0
Limited period for government reimbursement		24 months
Automatic renewal period for the resolution		24 months
Reimbursement limit stated in the resolution		24 months