Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Disaggregation of Revenue [Line Items]
Operating revenues	$ 590,267	$ 717,615	$ 1,647,887	$ 2,412,062
Direct
Disaggregation of Revenue [Line Items]
Operating revenues	169,285	209,477	470,779	646,760
Agency
Disaggregation of Revenue [Line Items]
Operating revenues	265,700	340,470	723,476	1,154,546
Escrow fees
Disaggregation of Revenue [Line Items]
Operating revenues	41,973	49,407	117,223	166,696
Real estate solutions and abstract fees
Disaggregation of Revenue [Line Items]
Operating revenues	86,451	89,519	253,422	302,534
Other revenues
Disaggregation of Revenue [Line Items]
Operating revenues	$ 26,858	$ 28,742	$ 82,987	$ 141,526