Fair Value of Financial Instruments - Schedule of Valuation for Level 3 Assets (Details) - USD ($)
$ in Thousands |
3 Months Ended |
9 Months Ended |
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Balance at beginning of period |
$ 4,928,297
|
$ 4,212,415
|
$ 4,540,653
|
$ 4,062,425
|
| Total (losses)/gains (realized/unrealized) |
|
|
|
|
| Included in earnings |
$ (136,604)
|
$ 36,292
|
$ (156,528)
|
$ 113,638
|
| Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] |
Other Operating Income (Expense), Net
|
Other Operating Income (Expense), Net
|
Other Operating Income (Expense), Net
|
Other Operating Income (Expense), Net
|
| Transfers in (1) |
|
$ 150,771
|
|
$ 150,771
|
| Transfers out |
$ (14,050)
|
(44,443)
|
$ (37,065)
|
(75,039)
|
| Transfer to securitization trust, net |
0
|
0
|
0
|
0
|
| Transfer to disposal group held for sale |
|
|
|
0
|
| Transfer from residential loans held for sale to residential loans |
0
|
0
|
0
|
0
|
| Paydowns/Distributions |
(236,981)
|
(378,932)
|
(811,379)
|
(1,163,191)
|
| Sales |
(128,103)
|
(346,697)
|
(436,673)
|
(383,647)
|
| Acquisitions/Repurchases |
224,934
|
366,585
|
731,546
|
1,291,034
|
| Originations |
376,458
|
382,443
|
1,183,397
|
382,443
|
| Balance at the end of period |
5,013,951
|
4,378,434
|
5,013,951
|
4,378,434
|
| Residential loans |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Balance at beginning of period |
892,487
|
367,089
|
583,963
|
632,266
|
| Total (losses)/gains (realized/unrealized) |
|
|
|
|
| Included in earnings |
(9,984)
|
8,813
|
(18,930)
|
15,592
|
| Transfers in (1) |
|
580
|
|
580
|
| Transfers out |
(10,201)
|
(4,014)
|
(28,245)
|
(30,740)
|
| Transfer to securitization trust, net |
(365,399)
|
(442,741)
|
(898,371)
|
(1,127,837)
|
| Transfer to disposal group held for sale |
|
|
|
0
|
| Transfer from residential loans held for sale to residential loans |
167,264
|
213,811
|
727,973
|
213,811
|
| Paydowns/Distributions |
(109,300)
|
(41,743)
|
(246,562)
|
(162,548)
|
| Sales |
(2,275)
|
(121,221)
|
(22,564)
|
(151,894)
|
| Acquisitions/Repurchases |
219,166
|
327,848
|
684,494
|
919,192
|
| Originations |
0
|
0
|
0
|
0
|
| Balance at the end of period |
781,758
|
308,422
|
781,758
|
308,422
|
| Residential loans | Consolidated SLST | VIE, Primary Beneficiary |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Balance at beginning of period |
1,104,207
|
1,199,383
|
1,165,677
|
965,672
|
| Total (losses)/gains (realized/unrealized) |
|
|
|
|
| Included in earnings |
(28,977)
|
7,677
|
(45,265)
|
35,429
|
| Transfers in (1) |
|
0
|
|
0
|
| Transfers out |
0
|
0
|
0
|
0
|
| Transfer to securitization trust, net |
0
|
0
|
0
|
0
|
| Transfer to disposal group held for sale |
|
|
|
0
|
| Transfer from residential loans held for sale to residential loans |
0
|
0
|
0
|
0
|
| Paydowns/Distributions |
(27,672)
|
(24,461)
|
(72,854)
|
(65,907)
|
| Sales |
0
|
0
|
0
|
0
|
| Acquisitions/Repurchases |
0
|
0
|
0
|
247,405
|
| Originations |
0
|
0
|
0
|
0
|
| Balance at the end of period |
1,047,558
|
1,182,599
|
1,047,558
|
1,182,599
|
| Residential loans held in securitization trusts |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Balance at beginning of period |
2,784,741
|
2,459,555
|
2,608,535
|
2,243,800
|
| Total (losses)/gains (realized/unrealized) |
|
|
|
|
| Included in earnings |
(103,849)
|
13,354
|
(121,323)
|
50,338
|
| Transfers in (1) |
|
0
|
|
0
|
| Transfers out |
(3,849)
|
(6,670)
|
(8,820)
|
(10,540)
|
| Transfer to securitization trust, net |
365,399
|
442,741
|
898,371
|
1,127,837
|
| Transfer to disposal group held for sale |
|
|
|
0
|
| Transfer from residential loans held for sale to residential loans |
0
|
0
|
0
|
0
|
| Paydowns/Distributions |
(88,587)
|
(280,146)
|
(463,300)
|
(862,024)
|
| Sales |
0
|
(6,945)
|
(95)
|
(13,222)
|
| Acquisitions/Repurchases |
5,768
|
38,737
|
46,255
|
124,437
|
| Originations |
0
|
0
|
0
|
0
|
| Balance at the end of period |
2,959,623
|
2,660,626
|
2,959,623
|
2,660,626
|
| Residential loans held for sale |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Balance at beginning of period |
59,002
|
0
|
80,707
|
0
|
| Total (losses)/gains (realized/unrealized) |
|
|
|
|
| Included in earnings |
9,128
|
8,824
|
29,693
|
8,824
|
| Transfers in (1) |
|
145,748
|
|
145,748
|
| Transfers out |
0
|
0
|
0
|
0
|
| Transfer to securitization trust, net |
0
|
0
|
0
|
0
|
| Transfer to disposal group held for sale |
|
|
|
0
|
| Transfer from residential loans held for sale to residential loans |
(167,264)
|
(213,811)
|
(727,973)
|
(213,811)
|
| Paydowns/Distributions |
(527)
|
(137)
|
(1,638)
|
(137)
|
| Sales |
(125,828)
|
(218,031)
|
(414,014)
|
(218,031)
|
| Acquisitions/Repurchases |
0
|
0
|
797
|
0
|
| Originations |
376,458
|
382,443
|
1,183,397
|
382,443
|
| Balance at the end of period |
150,969
|
105,036
|
150,969
|
105,036
|
| Multi-family loans |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Balance at beginning of period |
45,079
|
74,999
|
55,476
|
86,192
|
| Total (losses)/gains (realized/unrealized) |
|
|
|
|
| Included in earnings |
1,039
|
2,224
|
4,337
|
7,447
|
| Transfers in (1) |
|
|
|
0
|
| Transfers out |
0
|
0
|
0
|
0
|
| Transfer to securitization trust, net |
0
|
0
|
0
|
0
|
| Transfer to disposal group held for sale |
|
|
|
0
|
| Transfer from residential loans held for sale to residential loans |
0
|
0
|
0
|
0
|
| Paydowns/Distributions |
(9,250)
|
(8,576)
|
(22,945)
|
(24,992)
|
| Sales |
0
|
0
|
0
|
0
|
| Acquisitions/Repurchases |
0
|
0
|
0
|
0
|
| Originations |
0
|
0
|
0
|
0
|
| Balance at the end of period |
36,868
|
68,647
|
36,868
|
68,647
|
| Equity investments |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Balance at beginning of period |
22,767
|
91,440
|
24,711
|
113,492
|
| Total (losses)/gains (realized/unrealized) |
|
|
|
|
| Included in earnings |
(3,196)
|
(1,582)
|
(2,705)
|
580
|
| Transfers in (1) |
|
|
|
0
|
| Transfers out |
|
(33,759)
|
|
(33,759)
|
| Transfer to securitization trust, net |
0
|
0
|
0
|
0
|
| Transfer to disposal group held for sale |
|
|
|
(500)
|
| Transfer from residential loans held for sale to residential loans |
0
|
0
|
0
|
0
|
| Paydowns/Distributions |
(1,645)
|
(27,274)
|
(4,080)
|
(50,988)
|
| Sales |
0
|
0
|
0
|
0
|
| Acquisitions/Repurchases |
0
|
0
|
0
|
0
|
| Originations |
0
|
0
|
0
|
0
|
| Balance at the end of period |
17,926
|
28,825
|
17,926
|
28,825
|
| Assets of disposal group held for sale | Discontinued Operations, Held-for-Sale |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Balance at beginning of period |
|
500
|
|
0
|
| Total (losses)/gains (realized/unrealized) |
|
|
|
|
| Included in earnings |
|
0
|
|
0
|
| Transfers in (1) |
|
|
|
0
|
| Transfers out |
|
0
|
|
0
|
| Transfer to securitization trust, net |
|
0
|
|
0
|
| Transfer to disposal group held for sale |
|
|
|
500
|
| Transfer from residential loans held for sale to residential loans |
|
0
|
|
0
|
| Paydowns/Distributions |
|
0
|
|
0
|
| Sales |
|
(500)
|
|
(500)
|
| Acquisitions/Repurchases |
|
0
|
|
0
|
| Originations |
|
0
|
|
0
|
| Balance at the end of period |
|
0
|
|
0
|
| MSRs |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Balance at beginning of period |
19,093
|
19,449
|
20,893
|
21,003
|
| Total (losses)/gains (realized/unrealized) |
|
|
|
|
| Included in earnings |
(123)
|
(1,099)
|
(1,923)
|
(2,653)
|
| Transfers in (1) |
|
141
|
|
141
|
| Transfers out |
0
|
0
|
0
|
0
|
| Transfer to securitization trust, net |
0
|
0
|
0
|
0
|
| Transfer to disposal group held for sale |
|
|
|
0
|
| Transfer from residential loans held for sale to residential loans |
0
|
0
|
0
|
|
| Paydowns/Distributions |
0
|
3,405
|
0
|
3,405
|
| Sales |
0
|
0
|
0
|
0
|
| Acquisitions/Repurchases |
0
|
0
|
0
|
0
|
| Originations |
0
|
0
|
0
|
0
|
| Balance at the end of period |
18,970
|
21,896
|
18,970
|
21,896
|
| IRLCs |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Balance at beginning of period |
921
|
0
|
691
|
0
|
| Total (losses)/gains (realized/unrealized) |
|
|
|
|
| Included in earnings |
(642)
|
(1,919)
|
(412)
|
(1,919)
|
| Transfers in (1) |
|
4,302
|
|
4,302
|
| Transfers out |
0
|
0
|
0
|
0
|
| Transfer to securitization trust, net |
0
|
0
|
0
|
0
|
| Transfer to disposal group held for sale |
|
|
|
0
|
| Transfer from residential loans held for sale to residential loans |
0
|
0
|
0
|
0
|
| Paydowns/Distributions |
0
|
0
|
0
|
0
|
| Sales |
0
|
0
|
0
|
0
|
| Acquisitions/Repurchases |
0
|
0
|
0
|
0
|
| Originations |
0
|
0
|
0
|
0
|
| Balance at the end of period |
$ 279
|
$ 2,383
|
$ 279
|
$ 2,383
|