Organization (Details)	Mar. 31, 2014 county states medical_member individuals
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of medical membership members	36,900,000
Individuals served	66,800,000
Number of counties in the Kansas City area the Company does not serve	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