Debt - Schedule of Repurchase Transactions and Facilities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Amount of Collateral	$ 447,282	$ 541,999
Bond repurchase transaction	42,800	42,800
Master repurchase agreement
Debt Instrument [Line Items]
Amount Outstanding	354,039	375,745
Amount of Collateral	$ 451,793	$ 545,755
Interest Rate	7.30%	7.44%
Master repurchase agreement | Barclays | Bonds
Debt Instrument [Line Items]
Amount Outstanding	$ 69,929	$ 70,095
Amount of Collateral	$ 87,789	$ 101,041
Interest Rate	6.98%	7.03%
Master repurchase agreement | Barclays | Bonds | A Bonds, April 3, 2024
Debt Instrument [Line Items]
Amount Outstanding	$ 10,596
Amount of Collateral	$ 14,857
Interest Rate	6.83%
Master repurchase agreement | Barclays | Bonds | A Bonds, April 15, 2024
Debt Instrument [Line Items]
Amount Outstanding	$ 21,456
Amount of Collateral	$ 28,138
Interest Rate	6.72%
Master repurchase agreement | Barclays | Bonds | A Bonds, May 3, 2024
Debt Instrument [Line Items]
Amount Outstanding	$ 6,357	$ 9,628
Amount of Collateral	$ 8,162	$ 12,329
Interest Rate	6.68%	6.87%
Master repurchase agreement | Barclays | Bonds | A Bonds, May 22, 2024
Debt Instrument [Line Items]
Amount Outstanding	$ 2,134	$ 2,134
Amount of Collateral	$ 3,511	$ 3,358
Interest Rate	6.97%	6.97%
Master repurchase agreement | Barclays | Bonds | B Bonds, April 26, 2024
Debt Instrument [Line Items]
Amount Outstanding	$ 3,102
Amount of Collateral	$ 5,151
Interest Rate	7.62%
Master repurchase agreement | Barclays | Bonds | B Bonds, May 3, 2024
Debt Instrument [Line Items]
Amount Outstanding	$ 3,608	$ 3,608
Amount of Collateral	$ 5,991	$ 6,185
Interest Rate	7.70%	7.70%
Master repurchase agreement | Barclays | Bonds | B Bonds, May 22, 2024
Debt Instrument [Line Items]
Amount Outstanding	$ 4,312	$ 4,312
Amount of Collateral	$ 13,651	$ 7,565
Interest Rate	7.57%	7.57%
Master repurchase agreement | Barclays | Bonds | B Bonds, June 13, 2024
Debt Instrument [Line Items]
Amount Outstanding	$ 16,988
Amount of Collateral	$ 5,796
Interest Rate	7.06%
Master repurchase agreement | Barclays | Bonds | M Bonds, May 3, 2024
Debt Instrument [Line Items]
Amount Outstanding	$ 281	$ 281
Amount of Collateral	$ 505	$ 499
Interest Rate	7.05%	7.05%
Master repurchase agreement | Barclays | Bonds | M Bonds, May 22, 2024
Debt Instrument [Line Items]
Amount Outstanding	$ 1,095	$ 1,095
Amount of Collateral	$ 2,027	$ 1,911
Interest Rate	7.17%	7.17%
Master repurchase agreement | Barclays | Bonds | A Bonds, January 3, 2024
Debt Instrument [Line Items]
Amount Outstanding		$ 10,850
Amount of Collateral		$ 15,572
Interest Rate		6.90%
Master repurchase agreement | Barclays | Bonds | A Bonds, January 19, 2024
Debt Instrument [Line Items]
Amount Outstanding		$ 21,762
Amount of Collateral		$ 28,503
Interest Rate		6.79%
Master repurchase agreement | Barclays | Bonds | B Bonds, January 26, 2024
Debt Instrument [Line Items]
Amount Outstanding		$ 3,027
Amount of Collateral		$ 4,998
Interest Rate		7.68%
Master repurchase agreement | Barclays | Bonds | B Bonds, March 13, 2024
Debt Instrument [Line Items]
Amount Outstanding		$ 13,398
Amount of Collateral		$ 20,121
Interest Rate		7.13%
Master repurchase agreement | Nomura | Bonds
Debt Instrument [Line Items]
Amount Outstanding	$ 95,890	$ 68,623
Amount of Collateral	$ 95,465	$ 98,448
Interest Rate	6.84%	6.98%
Master repurchase agreement | Nomura | Bonds | B Bonds, April 26, 2024
Debt Instrument [Line Items]
Amount Outstanding	$ 1,031
Amount of Collateral	$ 1,797
Interest Rate	7.23%
Master repurchase agreement | Nomura | Bonds | A Bonds, April 26, 2024
Debt Instrument [Line Items]
Amount Outstanding	$ 34,745
Amount of Collateral	$ 45,079
Interest Rate	6.94%
Master repurchase agreement | Nomura | Bonds | A Bonds, May 15, 2024
Debt Instrument [Line Items]
Amount Outstanding	$ 4,898
Amount of Collateral	$ 7,008
Interest Rate	6.86%
Master repurchase agreement | Nomura | Bonds | A Bonds, June 28, 2024
Debt Instrument [Line Items]
Amount Outstanding	$ 16,657
Amount of Collateral	$ 22,547
Interest Rate	6.71%
Master repurchase agreement | Nomura | Bonds | B Bonds, May 15, 2024
Debt Instrument [Line Items]
Amount Outstanding	$ 3,013
Amount of Collateral	$ 5,197
Interest Rate	7.26%
Master repurchase agreement | Nomura | Bonds | B Bonds, June 5, 2024
Debt Instrument [Line Items]
Amount Outstanding	$ 28,176
Amount of Collateral	$ 110
Interest Rate	6.63%
Master repurchase agreement | Nomura | Bonds | B Bonds, June 28, 2024
Debt Instrument [Line Items]
Amount Outstanding	$ 3,818
Amount of Collateral	$ 6,414
Interest Rate	7.26%
Master repurchase agreement | Nomura | Bonds | M Bonds, April 26, 2024
Debt Instrument [Line Items]
Amount Outstanding	$ 2,434
Amount of Collateral	$ 5,200
Interest Rate	7.23%
Master repurchase agreement | Nomura | Bonds | M Bonds, June 28, 2024
Debt Instrument [Line Items]
Amount Outstanding	$ 1,118
Amount of Collateral	$ 2,113
Interest Rate	6.86%
Master repurchase agreement | Nomura | Bonds | B Bonds, January 26, 2024
Debt Instrument [Line Items]
Amount Outstanding		$ 1,024
Amount of Collateral		$ 1,761
Interest Rate		7.31%
Master repurchase agreement | Nomura | Bonds | A Bonds, January 26, 2024
Debt Instrument [Line Items]
Amount Outstanding		$ 35,184
Amount of Collateral		$ 47,149
Interest Rate		7.02%
Master repurchase agreement | Nomura | Bonds | A Bonds, February 15, 2024
Debt Instrument [Line Items]
Amount Outstanding		$ 5,079
Amount of Collateral		$ 7,449
Interest Rate		6.93%
Master repurchase agreement | Nomura | Bonds | A Bonds, March 28, 2024
Debt Instrument [Line Items]
Amount Outstanding		$ 17,019
Amount of Collateral		$ 23,238
Interest Rate		6.74%
Master repurchase agreement | Nomura | Bonds | B Bonds, February 15, 2024
Debt Instrument [Line Items]
Amount Outstanding		$ 3,002
Amount of Collateral		$ 5,149
Interest Rate		7.33%
Master repurchase agreement | Nomura | Bonds | B Bonds, March 28, 2024
Debt Instrument [Line Items]
Amount Outstanding		$ 3,900
Amount of Collateral		$ 6,413
Interest Rate		7.30%
Master repurchase agreement | Nomura | Bonds | M Bonds, January 26, 2024
Debt Instrument [Line Items]
Amount Outstanding		$ 2,307
Amount of Collateral		$ 5,177
Interest Rate		7.30%
Master repurchase agreement | Nomura | Bonds | M Bonds, March 28, 2024
Debt Instrument [Line Items]
Amount Outstanding		$ 1,108
Amount of Collateral		$ 2,112
Interest Rate		6.90%
Master repurchase agreement | Nomura | Loan
Debt Instrument [Line Items]
Amount Outstanding	$ 154,017	$ 193,060
Amount of Collateral	$ 216,540	$ 277,632
Interest Rate	7.79%	7.79%
Maximum borrowing capacity	$ 400,000	$ 400,000
Master repurchase agreement | JP Morgan | Bonds
Debt Instrument [Line Items]
Amount Outstanding	28,042	33,564
Amount of Collateral	$ 43,438	$ 53,978
Interest Rate	6.74%	6.90%
Master repurchase agreement | JP Morgan | Bonds | A Bonds, May 28, 2024
Debt Instrument [Line Items]
Amount Outstanding	$ 9,480
Amount of Collateral	$ 15,674
Interest Rate	6.67%
Master repurchase agreement | JP Morgan | Bonds | M Bonds, April 3, 2024
Debt Instrument [Line Items]
Amount Outstanding	$ 14,625
Amount of Collateral	$ 20,346
Interest Rate	6.73%
Master repurchase agreement | JP Morgan | Bonds | M Bonds, July 22, 2024
Debt Instrument [Line Items]
Amount Outstanding	$ 3,401
Amount of Collateral	$ 6,534
Interest Rate	6.96%
Master repurchase agreement | JP Morgan | Bonds | M Bonds, May 28, 2024
Debt Instrument [Line Items]
Amount Outstanding	$ 536
Amount of Collateral	$ 884
Interest Rate	6.89%
Master repurchase agreement | JP Morgan | Bonds | A Bonds, February 28, 2024
Debt Instrument [Line Items]
Amount Outstanding		$ 9,632
Amount of Collateral		$ 12,633
Interest Rate		6.73%
Master repurchase agreement | JP Morgan | Bonds | B Bonds, February 28, 2024
Debt Instrument [Line Items]
Amount Outstanding		$ 6,598
Amount of Collateral		$ 11,140
Interest Rate		7.13%
Master repurchase agreement | JP Morgan | Bonds | M Bonds, January 4, 2024
Debt Instrument [Line Items]
Amount Outstanding		$ 13,541
Amount of Collateral		$ 22,813
Interest Rate		6.82%
Master repurchase agreement | JP Morgan | Bonds | M Bonds, January 22, 2024
Debt Instrument [Line Items]
Amount Outstanding		$ 3,290
Amount of Collateral		$ 6,497
Interest Rate		7.23%
Master repurchase agreement | JP Morgan | Bonds | M Bonds, February 28, 2024
Debt Instrument [Line Items]
Amount Outstanding		$ 503
Amount of Collateral		$ 895
Interest Rate		7.03%
Master repurchase agreement | JP Morgan | Loan
Debt Instrument [Line Items]
Amount Outstanding	$ 6,161	$ 10,403
Amount of Collateral	$ 8,561	$ 14,656
Interest Rate	8.38%	8.38%
Maximum borrowing capacity	$ 150,000	$ 150,000