Estimated title losses (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Balances at beginning of period	$ 549,448	$ 549,614
Provisions:
Current year	36,773	55,760
Previous policy years	703	(141)
Total provisions	37,476	55,619
Payments, net of recoveries:
Current year	(6,990)	(8,927)
Previous policy years	(57,954)	(29,790)
Total payments, net of recoveries	(64,944)	(38,717)
Effects of changes in foreign currency exchange rates	2,161	(3,835)
Balances at end of period	$ 524,141	$ 562,681
Loss ratios as a percentage of title operating revenues:
Current year provisions	4.00%	3.80%
Total provisions	4.10%	3.80%