Estimated title losses (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Balances at beginning of period	$ 549,448	$ 549,614
Provisions:
Current year	59,036	81,108
Previous policy years	691	(3)
Total provisions	59,727	81,105
Payments, net of recoveries:
Current year	(12,911)	(14,191)
Previous policy years	(73,233)	(55,964)
Total payments, net of recoveries	(86,144)	(70,155)
Effects of changes in foreign currency exchange rates	(1,636)	(13,350)
Balances at end of period	$ 521,395	$ 547,214
Loss ratios as a percentage of title operating revenues:
Current year provisions	4.10%	3.80%
Total provisions	4.10%	3.80%