Business Combinations - Summary of Assets Acquired and Liabilities Assumed and Their Initial Fair Value Estimates (Details) - USD ($) $ in Thousands	Apr. 01, 2022	Sep. 30, 2022	Dec. 31, 2021
Liabilities assumed:
Goodwill recorded		$ 506,146	$ 500,319
Trident Abstract Title Agency, LLC
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Total purchase price	$ 7,084
Assets acquired:
Cash and cash equivalents	45,693
Other current assets	238
Premises and equipment	18
ROU asset	779
Other assets	81
Total assets acquired	46,809
Liabilities assumed:
Lease liability	779
Other liabilities	43,937
Total liabilities assumed	44,716
Net assets acquired	2,093
Net assets attributable to non-controlling interest	836
Goodwill recorded	$ 5,827