XML 48 R35.htm IDEA: XBRL DOCUMENT v3.8.0.1
Basis of Presentation (Details)
member in Millions
 3 Months Ended
Mar. 31, 2018
member
State
Segment
Basis Of Presentation [Line Items]  
Number of reportable segments (in segment) | Segment 3
Health Plans  
Basis Of Presentation [Line Items]  
Number of states in which entity operates (in state) | State 13
Number of members eligible for the health care programs, approximately (in member) | member 4.1
Minimum contract terms 3 years
Maximum contract terms 4 years