Acquired Intangible Assets and Goodwill - Goodwill (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)
Goodwill [Roll Forward]
Balance as of December 31, 2021	$ 409,382
Balance as of December 31, 2022	461,349
Real Estate Services
Goodwill [Roll Forward]
Balance as of December 31, 2021	250,231
Balance as of December 31, 2022	250,231
Rentals
Goodwill [Roll Forward]
Balance as of December 31, 2021	159,151
Balance as of December 31, 2022	159,151
Mortgage
Goodwill [Roll Forward]
Balance as of December 31, 2021	0
Balance as of December 31, 2022	51,967
Bay Equity
Goodwill [Roll Forward]
Goodwill resulting from acquisition	51,967
Bay Equity | Real Estate Services
Goodwill [Roll Forward]
Goodwill resulting from acquisition	0
Bay Equity | Rentals
Goodwill [Roll Forward]
Goodwill resulting from acquisition	0
Bay Equity | Mortgage
Goodwill [Roll Forward]
Goodwill resulting from acquisition	$ 51,967