Basis of Presentation (Details 2) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2014 item	Mar. 31, 2013	Dec. 31, 2013
Basis of Presentation
Number of businesses under which the entity is managed and operated	1
Estimated liability for appeals	$ 35,007,000		$ 41,852,000
Allowance for doubtful accounts
Balance at the beginning of the period	916,000	830,000	830,000
Provision			718,000
Recoveries			(42,000)
Charge-offs	(49,000)		(590,000)
Balance at the end of the period	867,000		916,000
Estimated allowance for appeals and estimated liability for appeals
Balance at the beginning of the period	55,791,000	34,426,000	34,426,000
Provision	(5,793,000)		41,076,000
Appeals found in Providers' favor	(16,748,000)		(19,711,000)
Balance at the end of the period	44,836,000		55,791,000
Estimated allowance for appeals that apply to uncollected accounts receivable	9,829,000		13,939,000
Estimated allowance for appeals found in favor of the provider which is associated with CMS RAC contract resulting in accounts receivable offset with CMS	12,300,000
Number of characteristics for revenue recognition	4
Amount of maximum balance per bank account as insured by Federal Deposit Insurance Corporation	250,000
Depreciation and amortization expense related to property and equipment	$ 8,000,000	$ 7,400,000