Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue [Line Items]
Operating revenues	$ 849,239	$ 802,025	$ 1,694,447	$ 1,483,392
Direct
Disaggregation of Revenue [Line Items]
Operating revenues	231,721	243,638	437,283	438,631
Agency
Disaggregation of Revenue [Line Items]
Operating revenues	409,931	390,330	814,076	736,261
Escrow fees
Disaggregation of Revenue [Line Items]
Operating revenues	61,497	63,534	117,289	120,183
Real estate solutions and abstract fees
Disaggregation of Revenue [Line Items]
Operating revenues	104,213	80,712	213,015	149,332
Other revenues
Disaggregation of Revenue [Line Items]
Operating revenues	$ 41,877	$ 23,811	$ 112,784	$ 38,985