Contingencies (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011
Contingencies [Abstract]
Litigation settlement amount	$ 10

Amount of consideration the entity has agreed to pay to settle a legal matter.

No definition available.

Name:	mdrx_LossContingencySettlementAgreementConsideration1
Namespace Prefix:	mdrx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant