Reserves For Claims Summary Of Transactions In Reserves For Claims (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019	Dec. 31, 2018
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Liability for title claims and claims adjustment expense	$ 33,532	$ 31,333	$ 31,729
Provision charged to operations	4,452	3,532
Payments of claims, net of recoveries	$ (2,253)	$ (3,928)