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Investment in Equity Method Investee (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Nov. 02, 2022	Nov. 01, 2022
Schedule of Equity Method Investments [Line Items]
UPB of loans serviced on behalf of NRZ	$ 45,000.0
ESS Financing Liability
Schedule of Equity Method Investments [Line Items]
Changes in fair value		$ 14.1
MAV Canopy HoldCo I LLC
Schedule of Equity Method Investments [Line Items]
Investment in equity method investee	$ 250.0				$ 250.0
Ownership percentage	15.00%			15.00%
Joint Marketing Agreement and Recapture Agreement
Schedule of Equity Method Investments [Line Items]
UPB of MSRs sold	$ 30.9	275.1	$ 0.0
Oaktree | MAV Canopy HoldCo I LLC
Schedule of Equity Method Investments [Line Items]
Ownership percentage	85.00%
MAV Asset Vehicle LLC
Schedule of Equity Method Investments [Line Items]
UIPB of loans subserviced	$ 55,900.0
UPB of loans serviced on behalf of NRZ		2,900.0
Forward Bulk Servicing Rights Purchase and Sale Agreement
Schedule of Equity Method Investments [Line Items]
UPB of MSRs sold	0.0	6,600.0	4,300.0
Bulk Mortgage Servicing Rights Purchase and Sale Agreements
Schedule of Equity Method Investments [Line Items]
UPB of MSRs sold	6,800.0	$ 600.0	$ 20,700.0
Mortgage Servicing Rights Title Transferred | MAV Asset Vehicle LLC
Schedule of Equity Method Investments [Line Items]
UPB of loans serviced on behalf of NRZ	28,800.0
Maximum
Schedule of Equity Method Investments [Line Items]
Management fee expense	$ 0.4

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- Definition

This represents the increase (decrease) in the valuation which is realized on a transfer, accounted for as financing, of a portion of servicing assets and reflects the amount of sales proceeds in excess of the sum of the carrying amounts of transferred financial assets.

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Amount of contractual principal due at origination of mortgage loan within investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate.

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