Legal Matters and Contingencies (Details) In Millions, unless otherwise specified	1 Months Ended	12 Months Ended
Apr. 27, 2009 Ontario Ministry of Health and Long Term Care Civil Rebate Payment Order and Civil Complaint [Member] CAD	Sep. 30, 2011 Qui Tam Matter [Member] USD ($)
Loss Contingencies [Line Items]
Initial Liability Assessment	5.80
Litigation Settlement, Gross		$ 16.00

This element represents the gross amount awarded, to be received by, or to be remitted to the entity in settlement of litigation occurring during the period.

No definition available.

Name:	us-gaap_LitigationSettlementGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration