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Business Segment Reporting - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Segment Reporting Information [Line Items] |  |
MSR valuation adjustments, net | $ 11.6 | $ 69.0
Interest expense | $ 67.4 | $ 62.3

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