Estimated title losses (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Balances at beginning of period	$ 549,614	$ 496,275
Provisions:
Current year	81,108	91,259
Previous policy years	(3)	1,428
Total provisions	81,105	92,687
Payments, net of recoveries:
Current year	(14,191)	(12,181)
Previous policy years	(55,964)	(40,745)
Total payments, net of recoveries	(70,155)	(52,926)
Effects of changes in foreign currency exchange rates	(13,350)	(1,485)
Balances at end of period	$ 547,214	$ 534,551
Loss ratios as a percentage of title operating revenues:
Current year provisions	3.80%	4.30%
Total provisions	3.80%	4.30%