Debt MIF Warehousing Agreement (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 18, 2024	Feb. 10, 2024	Nov. 11, 2023	Oct. 27, 2023	Oct. 24, 2023	Sep. 18, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Maximum Borrowing Availability under all Credit Lines	$ 365,000							$ 390,000
Notes payable bank - financial service operations	$ 200,619							$ 245,741
Warehousing Agreement - Fourth Amended and Restated
Debt Instrument [Line Items]
Line of Credit Facility, Initiation Date	May 26, 2023
Line of Credit Facility, Expiration Date	May 24, 2024
Basis point spread on variable rate under warehouse	1.65%
Line of Credit Facility, Maximum Borrowing Capacity	$ 200,000						$ 275,000
SOFR	0.50%
Warehousing Agreement - First Amendment to Fourth Amended and Restated
Debt Instrument [Line Items]
Line of Credit Facility, Initiation Date	Oct. 24, 2023
Line of Credit Facility, Maximum Borrowing Capacity			$ 80,000	$ 120,000		$ 110,000
Repurchase Agreement-Fifth Amendment to Second Amendment and Restated
Debt Instrument [Line Items]
Line of Credit Facility, Initiation Date	Oct. 30, 2017
Line of Credit Facility, Expiration Date	Oct. 23, 2023
Line of Credit Facility, Maximum Borrowing Capacity	$ 90,000
SOFR - Loan Type 2	2.375%
SOFR	2.75%
JPM Master Repurchase Agreement Initiation Date
Debt Instrument [Line Items]
Line of Credit Facility, Initiation Date	Oct. 24, 2023
Line of Credit Facility, Expiration Date	Oct. 22, 2024
Line of Credit Facility, Maximum Borrowing Capacity		$ 270,000	$ 240,000	$ 300,000		$ 270,000
All MIF Credit Lines
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity					$ 380,000
Minimum [Member] | Repurchase Agreement-Fifth Amendment to Second Amendment and Restated
Debt Instrument [Line Items]
Basis point spread on variable rate under warehouse	1.50%
Maximum [Member] | Repurchase Agreement-Fifth Amendment to Second Amendment and Restated
Debt Instrument [Line Items]
Basis point spread on variable rate under warehouse	2.00%