XML 38 R27.htm IDEA: XBRL DOCUMENT v3.8.0.1
Summary of Business and Significant Accounting Policies - Narrative (Details)
$ in Millions
3 Months Ended 20 Months Ended
Mar. 31, 2018
USD ($)
state
Mar. 31, 2017
USD ($)
Jun. 30, 2012
USD ($)
Accounting Policies [Abstract]      
Number of states in which the Company is licensed to market and sell health insurance | state 50    
Book-of-business transfers     $ 13.9
Book-of-business, margin earned $ 0.6 $ 0.5