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Repurchase Agreements - Schedule of Repurchase Agreements Secured by Investment Securities (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
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Assets Sold under Agreements to Repurchase [Line Items] |  |
Outstanding Repurchase Agreements | $ 2,447,851 | $ 1,862,063
Carrying Value of Assets Pledged | 3,503,191 | 3,084,303
Agency RMBS And Non-Agency RMBS |  |
Assets Sold under Agreements to Repurchase [Line Items] |  |
Outstanding Repurchase Agreements | 2,447,851 | 1,862,063
Carrying Value of Assets Pledged | 2,633,293 | 2,076,435
Amortized Cost of Collateral Pledged | 2,697,936 | 2,102,412
Agency RMBS |  |
Assets Sold under Agreements to Repurchase [Line Items] |  |
Outstanding Repurchase Agreements | 2,346,695 | 1,771,436
Carrying Value of Assets Pledged | 2,458,247 | 1,894,052
Amortized Cost of Collateral Pledged | 2,473,618 | 1,869,415
Non-Agency RMBS |  |
Assets Sold under Agreements to Repurchase [Line Items] |  |
Outstanding Repurchase Agreements | 101,156 | 90,627
Carrying Value of Assets Pledged | 175,046 | 182,383
Amortized Cost of Collateral Pledged | 224,318 | 232,997
Non-Agency RMBS | Residential Loan Securitizations |  |
Assets Sold under Agreements to Repurchase [Line Items] |  |
Amortized Cost of Collateral Pledged |  | 42,100
Non-Agency RMBS | Consolidated SLST |  |
Assets Sold under Agreements to Repurchase [Line Items] |  |
Amortized Cost of Collateral Pledged | $ 140,500 | $ 140,300

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