Revenues (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disaggregation of Revenue [Line Items]
Operating revenues	$ 1,877,453	$ 1,887,882	$ 1,934,585
Title insurance premiums, Direct
Disaggregation of Revenue [Line Items]
Operating revenues	615,646	597,510	602,858
Title insurance premiums, Agency
Disaggregation of Revenue [Line Items]
Operating revenues	970,540	1,003,959	1,016,356
Escrow fees
Disaggregation of Revenue [Line Items]
Operating revenues	137,539	124,660	142,463
Search, abstract and valuation services
Disaggregation of Revenue [Line Items]
Operating revenues	82,050	92,708	96,703
Other revenues
Disaggregation of Revenue [Line Items]
Operating revenues	$ 71,678	$ 69,045	$ 76,205