Debt - Summary of Financing Arrangements (Details)
$ in Thousands |
3 Months Ended |
12 Months Ended |
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Mar. 31, 2026
USD ($)
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Dec. 31, 2025
USD ($)
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Oct. 10, 2025
USD ($)
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Oct. 18, 2022
USD ($)
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Apr. 15, 2020
Subsidiary
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| Debt Instrument [Line Items] |
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| Number of subsidiaries | Subsidiary |
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3
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| Facility |
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| Debt Instrument [Line Items] |
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| Outstanding face amount |
$ 665,235
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$ 771,203
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| Carrying value |
$ 664,983
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$ 769,442
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| Weighted average interest rate |
5.23%
|
5.25%
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| Weighted average life (years) |
1 year 1 month 6 days
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10 months 24 days
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| Collateral |
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| Debt Instrument [Line Items] |
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| Collateral outstanding face amount |
$ 814,265
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$ 953,591
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| Collateral amortized cost basis |
558,716
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686,571
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| Collateral carrying value |
$ 571,350
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$ 694,183
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| Collateral weighted average life (years) |
3 years 9 months 18 days
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3 years 7 months 6 days
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| Mizuho | Minimum |
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| Debt Instrument [Line Items] |
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| Debt instrument, tenor period |
1 month
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1 month
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| Mizuho | Maximum |
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| Debt Instrument [Line Items] |
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| Debt instrument, tenor period |
2 months
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2 months
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| Mizuho | Facility | Minimum |
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| Debt Instrument [Line Items] |
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| Debt instrument, tenor period |
1 month
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| Mizuho | Facility | Maximum |
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| Debt Instrument [Line Items] |
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| Debt instrument, tenor period |
2 months
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| Master Repurchase Agreements | Mizuho |
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| Debt Instrument [Line Items] |
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| Outstanding face amount |
$ 164,600
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| Collateral outstanding face amount |
615,600
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| Master Repurchase Agreements | Mizuho | Facility |
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| Debt Instrument [Line Items] |
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| Outstanding face amount |
164,614
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$ 258,038
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| Carrying value |
$ 164,614
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$ 258,038
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| Weighted average interest rate |
5.38%
|
5.53%
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| Weighted average life (years) |
0 years
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0 years
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| Master Repurchase Agreements | Mizuho | Collateral |
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| Debt Instrument [Line Items] |
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| Collateral outstanding face amount |
$ 615,619
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$ 740,359
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| Collateral amortized cost basis |
240,905
|
352,744
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| Collateral carrying value |
$ 225,571
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$ 336,014
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| Collateral weighted average life (years) |
4 years 1 month 6 days
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3 years 9 months 18 days
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| Asset Specific Financing | Freddie Mac | Facility |
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| Debt Instrument [Line Items] |
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| Outstanding face amount |
$ 97,438
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$ 108,220
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| Carrying value |
$ 97,437
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$ 108,220
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| Weighted average interest rate |
2.64%
|
2.69%
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| Weighted average life (years) |
1 year 7 months 6 days
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1 year 10 months 24 days
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| Asset Specific Financing | Freddie Mac | Collateral |
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| Debt Instrument [Line Items] |
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| Collateral outstanding face amount |
$ 106,844
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$ 118,550
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| Collateral amortized cost basis |
108,903
|
121,239
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| Collateral carrying value |
$ 108,903
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$ 121,239
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| Collateral weighted average life (years) |
1 year 7 months 6 days
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1 year 10 months 24 days
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| Mezzanine loans | Freddie Mac | Facility |
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| Debt Instrument [Line Items] |
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| Outstanding face amount |
$ 56,183
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$ 57,945
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| Carrying value |
$ 56,183
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$ 57,945
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| Weighted average interest rate |
0.30%
|
0.30%
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| Weighted average life (years) |
4 years 1 month 6 days
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4 years 3 months 18 days
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| Mezzanine loans | Freddie Mac | Collateral |
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| Debt Instrument [Line Items] |
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| Collateral outstanding face amount |
$ 91,802
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$ 94,682
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| Collateral amortized cost basis |
95,967
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98,709
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| Collateral carrying value |
$ 95,967
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$ 98,709
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| Collateral weighted average life (years) |
4 years 1 month 6 days
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4 years 3 months 18 days
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| Multifamily Property Debt Due 2026 | Facility |
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| Debt Instrument [Line Items] |
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| Outstanding face amount |
$ 63,500
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$ 63,500
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| Carrying value |
$ 63,500
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$ 63,500
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| Weighted average interest rate |
8.32%
|
8.32%
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| Weighted average life (years) |
1 year 7 months 6 days
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9 months 18 days
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| Multifamily Property Debt Due 2026 | Collateral |
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| Debt Instrument [Line Items] |
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| Collateral amortized cost basis |
$ 64,310
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$ 64,467
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| Collateral carrying value |
$ 64,310
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$ 64,467
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| Collateral weighted average life (years) |
1 year 7 months 6 days
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9 months 18 days
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| Multifamily Property Debt Due 2027 | Facility |
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| Debt Instrument [Line Items] |
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| Outstanding face amount |
$ 42,000
|
$ 42,000
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| Carrying value |
$ 42,651
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$ 42,651
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| Weighted average interest rate |
6.31%
|
6.31%
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| Weighted average life (years) |
2 years 6 months
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1 year 9 months 18 days
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| Multifamily Property Debt Due 2027 | Collateral |
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| Debt Instrument [Line Items] |
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| Collateral amortized cost basis |
$ 48,631
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$ 49,412
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| Collateral carrying value |
$ 48,631
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$ 49,412
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| Collateral weighted average life (years) |
2 years 6 months
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1 year 9 months 18 days
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| Common Stock Investment | Facility |
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| Debt Instrument [Line Items] |
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| Outstanding face amount |
$ 10,000
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$ 10,000
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| Carrying value |
$ 9,980
|
$ 9,976
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| Weighted average interest rate |
8.52%
|
8.26%
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| Weighted average life (years) |
1 year 1 month 6 days
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1 year 3 months 18 days
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| Common Stock Investment | Collateral |
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| Debt Instrument [Line Items] |
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| Collateral carrying value |
$ 27,968
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$ 24,342
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| The 7.88 Percent Senior Notes Due 2026 | Facility | Unsecured Financing |
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| Debt Instrument [Line Items] |
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| Outstanding face amount |
45,000
|
45,000
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| Carrying value |
$ 44,181
|
$ 43,051
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| Weighted average interest rate |
7.88%
|
7.88%
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| Weighted average life (years) |
1 year 6 months
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9 months 18 days
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| The 5.75 Percent Senior Notes Due 2026 | Facility | Unsecured Financing |
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| Debt Instrument [Line Items] |
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| Outstanding face amount |
$ 180,000
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$ 180,000
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| Carrying value |
$ 179,937
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$ 179,561
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| Weighted average interest rate |
5.75%
|
5.75%
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| Weighted average life (years) |
1 month 6 days
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3 months 18 days
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| The 7.50 Percent Senior Notes Due 2027 | Facility | Unsecured Financing |
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| Debt Instrument [Line Items] |
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| Outstanding face amount |
$ 6,500
|
$ 6,500
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|
$ 6,500
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| Carrying value |
$ 6,500
|
$ 6,500
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| Weighted average interest rate |
7.50%
|
7.50%
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7.50%
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| Weighted average life (years) |
1 year 7 months 6 days
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1 year 9 months 18 days
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| 7.875% Senior Unsecured Notes |
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| Debt Instrument [Line Items] |
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| Outstanding face amount |
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$ 45,000
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| Debt instrument, interest rate, stated percentage |
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|
7.875%
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| 5.75% Unsecured Notes |
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| Debt Instrument [Line Items] |
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| Carrying value |
$ 298,500
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| Maturity date |
May 01, 2026
|
May 01, 2026
|
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| Debt instrument, interest rate, stated percentage |
5.75%
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