Reserves For Claims Summary Of The Company's Loss Reserves (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019	Dec. 31, 2018
Liability for Future Policy Benefits and Unpaid Claims and Claims Adjustment Expense [Abstract]
Known title claims	$ 3,993	$ 3,799
IBNR	29,539	27,534
Total reserve for claims	$ 33,532	$ 31,333	$ 31,729
% of known title reserves	11.90%	12.10%
% of IBNR	88.10%	87.90%
% of total loss reserves	100.00%	100.00%