Segment Information (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended	3 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011 Electronic Health Records [Member]
Segment Reporting Information [Line Items]
Impairment of long-lived assets and goodwill	$ 0	$ 8,501	$ 0	$ 8,500

Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill.

No definition available.

Name:	us-gaap_GoodwillAndIntangibleAssetImpairment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration