Commitments and Contingencies (Details) $ in Thousands						3 Months Ended		12 Months Ended
	Feb. 01, 2024 USD ($)	Jan. 18, 2024 defendant	Oct. 31, 2023 USD ($) defendant	Sep. 15, 2023 USD ($) D installment	Sep. 05, 2023 USD ($)	Dec. 31, 2023 USD ($)	Sep. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)	Apr. 22, 2023 item class
Commitments and Contingencies
Settlement amount								$ 55,150
Moehrl Related Antitrust Litigations
Commitments and Contingencies
Number of classes of home sellers | class									2
Number of covered multiple listing service | item									20
Moehrl Related Antitrust Litigations | Pending Litigation | MLS Property Information Network, Inc [Member]
Commitments and Contingencies
Settlement amount					$ 3,000
Moehrl Related Antitrust Litigations | Settled Litigation | National Association of Realtors, HomeServices of America, Inc., Keller Williams Realty, Inc [Member]
Commitments and Contingencies
Conspiracy existed and awarded			$ 1,800,000
Number of Defendants | defendant			3
Moehrl Related Antitrust Litigations | Settled Litigation | Keller Williams Realty, Inc [Member] | Subsequent Event
Commitments and Contingencies
Total settlement amount	$ 70,000
Nationwide Claims | Settled Litigation
Commitments and Contingencies
Settlement amount				$ 55,000
Number of installments | installment				3
The percentage of amount deposited in the settlement fund						25.00%	25.00%
The amount deposited in the settlement fund						$ 13,800	$ 13,800
Nationwide Claims | Settled Litigation | Scenario, Plan [Member]
Commitments and Contingencies
The percentage of amount deposited in the settlement fund				50.00%
Number of business days of final court approval of settlement | D				10
Toronto Regional Real Estate Board [Member] | Pending Litigation | Subsequent Event
Commitments and Contingencies
Number of Defendants | defendant		70