Commitments and Contingencies (Schedule of Pre-Tax Charges in Connection with Lawsuits) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011
Contingencies and Contingencies [Abstract]
Professional fees and other related costs in connection with specific lawsuits	$ 5,488	$ 15,317

Professional fees and other related costs incurred in connection with the Tenet acquisition lawsuit, government investigations and shareholder lawsuits of possible improper claims submitted to Medicare and Medicaid.

No definition available.

Name:	cyh_ProfessionalFeesAndOtherRelatedCosts
Namespace Prefix:	cyh_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration