XML 46 R36.htm IDEA: XBRL DOCUMENT v3.19.2
Investments - Net Investment Income (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Investment Income, Net [Abstract]        
Investment income $ 7,741 $ 5,937 $ 15,237 $ 10,719
Investment expenses (112) (202) (225) (410)
Net investment income $ 7,629 $ 5,735 $ 15,012 $ 10,309