Segment information - Selected Statement of Operations and Income (Loss) Information Related to Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Segment Reporting Information [Line Items]
Revenues	$ 524,305	$ 852,916
Depreciation and amortization	14,906	13,748
Loss before taxes	(10,156)	79,611
Title segment
Segment Reporting Information [Line Items]
Revenues	461,645	729,359
Depreciation and amortization	8,104	6,141
Loss before taxes	(664)	82,783
Real estate solutions and abstract fees
Segment Reporting Information [Line Items]
Revenues	62,625	89,391
Depreciation and amortization	6,300	6,796
Loss before taxes	1,366	6,791
Corporate and Other
Segment Reporting Information [Line Items]
Revenues	35	34,166
Depreciation and amortization	502	811
Loss before taxes	$ (10,858)	$ (9,963)