General form of registration statement for all companies including face-amount certificate companies

Property and Equipment - Narrative (Details)

v3.19.3.a.u2
Property and Equipment - Narrative (Details) - USD ($)
$ in Thousands
1 Months Ended 2 Months Ended 3 Months Ended 8 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2019
Aug. 31, 2019
Sep. 30, 2018
Aug. 31, 2019
Sep. 30, 2018
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Property, Plant and Equipment [Abstract]                
Depreciation $ 925 $ 1,073 $ 2,880 $ 7,348 $ 8,360 $ 11,434 $ 8,818 $ 8,160