Estimated title losses (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Balances at beginning of period	$ 459,053	$ 461,560
Provisions:
Current year	39,811	33,833
Previous policy years	361	640
Total provisions	40,172	34,473
Payments, net of recoveries:
Current year	(5,420)	(5,722)
Previous policy years	(33,516)	(39,929)
Total payments, net of recoveries	(38,936)	(45,651)
Effects of changes in foreign currency exchange rates	(4,264)	(174)
Balances at end of period	$ 456,025	$ 450,208
Loss ratios as a percentage of title operating revenues:
Current year provisions	4.30%	4.10%
Total provisions	4.30%	4.10%