Market Updates (Details Textual) (USD $) In Thousands, unless otherwise specified	12 Months Ended				12 Months Ended									12 Months Ended		12 Months Ended
	Dec. 31, 2010	Dec. 31, 2011 Georgia [Member]	Dec. 31, 2011 Louisiana [Member] Location Person Entity	Feb. 01, 2012 Louisiana [Member] Person	Dec. 31, 2011 New Jersey [Member]	Dec. 31, 2011 New Jersey [Member] Medicaid Service Contract Amortization Period [Member] M	Dec. 31, 2011 New Jersey [Member] Provider Network Amortization Period [Member] M	Dec. 31, 2011 Tennessee [Member]	Dec. 31, 2011 Medicare Advantage [Member]	Dec. 31, 2011 Texas [Member] Person	Dec. 31, 2011 South Carolina [Member]	Dec. 31, 2011 Washington [Member] Beneficiary Person Organization	Dec. 31, 2011 Corpus Christi area [Member] Texas [Member] Person	Dec. 31, 2011 Expansion contract awarded by HHSC [Member] Texas [Member] Country Person	Jan. 31, 2011 ASO [Member] Texas [Member] Person	Dec. 31, 2011 Health Plus [Member] New York [Member] Person
Market Updates (Textual) [Abstract]
TANF and CHIP contract renewal notification date		June 2011
Effective date of health care contract renewal		Jul. 01, 2011			Jul. 01, 2011				Jan. 01, 2012
Medicaid contract execution date		Dec. 29, 2011
Contract termination date if all renewal options are exercised		Jun. 30, 2014
Termination date of health care contract		Jun. 30, 2012						Jun. 30, 2012
Expected period in which the state will begin reprocurement of the TANF and CHIP contract		2012
Medicaid contract award date			Jul. 25, 2011							Aug. 01, 2011		Jan. 18, 2012
Number of Coordinated Care Network Medicaid managed care organizations within the State			5
Approximate number of Medicaid recipients to be served by Coordinated Care Network Medicaid managed care organizations			900,000
Number of regions to be covered under the contract			3
Number of Coordinated Care Network Medicaid managed care organizations serving Medicaid recipients on a full-risk basis			3
Period Of Notification Of Award Or Renewal Of Medicare Advantage Plans									third quarter of 2011
Effective date of business acquisition					2010-03-01
Purchase price of contract rights and related assets	$ 13,420				$ 13,420
Amount of purchase price allocated to specifically identifiable intangible assets					2,200
Amortization period of service and provider contracts						117	120
Date of entry into purchase agreement																October 25, 2011
Agreed upon purchase price of operating assets and contract rights																85,000
Approximate number of health care recipients served				45,000						632,000			10,000	27,000	14,000	320,000
Expected Closing Date Of Purchase Agreement																first half of 2012
Effective date of managed care services contract amendment								Jul. 01, 2011		Sep. 01, 2011						Oct. 01, 2011
Contract amendment receipt date		Dec. 29, 2011						Jan. 18, 2012		Oct. 06, 2011
Effect of revision to premium rates through a contract amendment								decrease of approximately 4.7%		net decrease of approximately 5.4%
Additional reduction to premium rates due to risk adjustment factor in contract								1.70%
Number of countries defined as rural service areas														164
Operational start date of Medicaid contract			Feb 1, 2012											Feb 2011
Termination date of ASO contract										Jan. 31, 2011
Number of managed care organizations to provide services in the Healthy Options Program												5
Approximate number of Medicaid recipients to be served in the Healthy Options program												700,000
Approximate number of SSI eligible's to be added to the Healthy Options program												100,000
Approximate number of low income adults in the Healthy Options program												41,000
Date of sale of contract rights											March 1, 2009
Proceeds from sale of intangible assets	$ 4,000										$ 5,810