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Warehouse Receivables & Warehouse Lines of Credit - Narrative (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2022
Short-term Debt [Line Items] |  |
Impairment loss |  | $ 26,405
Real estate investments |  |
Short-term Debt [Line Items] |  |
Impairment loss | $ 26,400 | $ 26,405
Warehouse Agreement Borrowings |  |
Short-term Debt [Line Items] |  |
Period of repayment for warehouse lines of credit |  | 1 month
Maximum lines of credit principal outstanding |  | $ 1,500,000

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