Warehouse Receivables & Warehouse Lines of Credit - Narrative (Details) - Warehouse Agreement Borrowings $ in Billions	9 Months Ended
Sep. 30, 2024 USD ($)
Short-term Debt [Line Items]
Period of repayment for warehouse lines of credit	1 month
Lines of credit principal outstanding	$ 1.7

For the form of debt having an initial term of less than one year or less than the normal operating cycle, if longer, the maximum amount borrowed at any time during the period.

No definition available.

Name:	us-gaap_ShorttermDebtMaximumAmountOutstandingDuringPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration