Organization (Details)	Dec. 31, 2013 county states counties medical_member individuals
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of medical membership members	35,700,000
Individuals served	67,800,000
Number of counties in the Kansas City area not served	30
Number of counties in the New York City metropolitan area the Company serves as independent licensee	10
Number of states in which the Company is licensed to conduct insurance operations	50