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Rights to MSRs - Schedule of Assets, Liabilities, Servicing and Subservicing Fees Related to NRZ Agreements (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
Servicing Liabilities at Fair Value [Line Items]
MSRs, at fair value	$ 2,072,518	$ 1,044,913	$ 2,072,518	$ 1,044,913	$ 1,400,217	$ 1,294,817	$ 1,050,228	$ 1,486,395
Due from NRZ	2,616		2,616			4,611
Other financing liabilities, at fair value	544,251		544,251			576,722
Pledged MSR liability expense	39,810	41,686	77,660	48,280
PMC MSR Agreements
Servicing Liabilities at Fair Value [Line Items]
Changes in fair value	0	0	0	40,720
Runoff and settlement	0	0	0	7,492
New Residential Investment Corp
Servicing Liabilities at Fair Value [Line Items]
MSRs, at fair value	535,571		535,571			566,952
Due to NRZ	84,288		84,288			94,691
Servicing fees collected on behalf of NRZ	77,716	88,405	158,101	208,073
Less: Subservicing fee retained by Ocwen	22,521	25,523	46,512	54,855
Net servicing fees remitted to NRZ	55,195	62,882	111,589	153,218
Changes in fair value	(8,393)	(6,810)	(9,944)	25,938
Runoff and settlement	20,910	25,936	38,526	74,312
Other	2,868	2,070	5,347	4,688
Pledged MSR liability expense	39,810	41,686	77,660	48,280
New Residential Investment Corp \| Subservicing Fees and Reimbursable Expenses
Servicing Liabilities at Fair Value [Line Items]
Due from NRZ	2,616		2,616			4,611
New Residential Investment Corp \| Original Rights to MSRs Agreements
Servicing Liabilities at Fair Value [Line Items]
Other financing liabilities, at fair value	535,571		535,571			$ 566,952
Changes in fair value	(8,393)	(6,810)	(9,944)	(13,879)
Runoff and settlement	20,910	15,957	38,526	31,699
New Residential Investment Corp \| Original Rights to MSRs Agreements \| Reclassification
Servicing Liabilities at Fair Value [Line Items]
Changes in fair value		7,800		5,800
New Residential Investment Corp \| 2017 Agreements and New RMSR Agreements
Servicing Liabilities at Fair Value [Line Items]
Changes in fair value	0	0	0	(903)
Runoff and settlement	$ 0	$ 9,979	$ 0	$ 35,121