Estimated title losses (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Balances at beginning of period	$ 549,614	$ 496,275
Provisions:
Current year	55,760	61,147
Previous policy years	(141)	1,195
Total provisions	55,619	62,342
Payments, net of recoveries:
Current year	(8,927)	(7,682)
Previous policy years	(29,790)	(28,438)
Total payments, net of recoveries	(38,717)	(36,120)
Effects of changes in foreign currency exchange rates	(3,835)	2,486
Balances at end of period	$ 562,681	$ 524,983
Loss ratios as a percentage of title operating revenues:
Current year provisions	3.80%	4.50%
Total provisions	3.80%	4.60%