Basis of Presentation and Significant Accounting Policies - Schedule of Total Accrued Medical Malpractice Reserves and Related Insurance Receivables (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Assets    
Insurance receivable for malpractice claims, current portion $ 13,038 $ 12,564
Insurance receivable for malpractice claims, less current portion 22,409 21,574
Insurance receivable for malpractice claims, total 35,447 34,138
Liabilities    
Medical malpractice and self-insurance reserves, current portion 13,618 13,079
Medical malpractice and self-insurance reserves, less current portion 48,659 47,239
Medical malpractice and self-insurance reserves, total 62,277 60,318
Claims Reserve    
Liabilities    
Medical malpractice and self-insurance reserves, current portion 13,038 12,564
Medical malpractice and self-insurance reserves, less current portion 22,409 21,574
Medical malpractice and self-insurance reserves, total 35,447 34,138
IBNR Reserve    
Liabilities    
Medical malpractice and self-insurance reserves, current portion 580 515
Medical malpractice and self-insurance reserves, less current portion 26,250 25,665
Medical malpractice and self-insurance reserves, total $ 26,830 $ 26,180