Segment information - Selected Statement of Operations Information Related to Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Segment Reporting Information [Line Items]
Revenues (net realized losses)	$ 554,315	$ 524,305
Depreciation and amortization	15,384	14,906
Income (loss) before taxes and noncontrolling interest	7,146	(10,156)
Title segment:
Segment Reporting Information [Line Items]
Revenues (net realized losses)	471,352	461,645
Depreciation and amortization	8,729	8,104
Income (loss) before taxes and noncontrolling interest	10,181	(664)
Real estate solutions segment:
Segment Reporting Information [Line Items]
Revenues (net realized losses)	83,041	62,625
Depreciation and amortization	6,275	6,300
Income (loss) before taxes and noncontrolling interest	6,732	1,366
Corporate and other segment:
Segment Reporting Information [Line Items]
Revenues (net realized losses)	(78)	35
Depreciation and amortization	380	502
Income (loss) before taxes and noncontrolling interest	$ (9,767)	$ (10,858)