v3.26.3
FAIR VALUE MEASUREMENTS - Schedule of Financial Assets Measured at Fair Value on a Recurring Basis (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2026
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Beginning balance $ 579,699 $ 264,214
Acquisition and funding activities 139,380 548,082
Paydowns (54,157) (146,712)
Realization of cash flows (261) (564)
Other factors (1,371) (1,730)
Ending balance 663,290 663,290
Changes in unrealized gains (losses) included in earnings related to financial assets still held at the reporting date $ (1,511) $ (1,713)
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement Of Income, Extensible List Not Disclosed Flag Realization of cash flows Realization of cash flows
Fair Value, Asset (Liability), Recurring Basis, Still Held, Unrealized Gain (Loss), Statement Of Income, Extensible List Not Disclosed Flag Realization of cash flows Realization of cash flows
Fair Value, Recurring Basis, Unobservable Input, Reconciliation, Asset (Liability), Gain (Loss), Statement Of Income, Extensible List Not Disclosed Flag Other factors Other factors
RTLs | Mortgage Receivable    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Beginning balance $ 380,209 $ 176,584
Acquisition and funding activities 112,184 396,683
Paydowns (44,155) (125,244)
Realization of cash flows (17) (72)
Other factors 710 980
Ending balance 448,931 448,931
Changes in unrealized gains (losses) included in earnings related to financial assets still held at the reporting date 690 1,020
NQMs | Mortgage Receivable    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Beginning balance 199,490 87,630
Acquisition and funding activities 27,196 151,399
Paydowns (10,002) (21,468)
Realization of cash flows (244) (492)
Other factors (2,081) (2,710)
Ending balance 214,359 214,359
Changes in unrealized gains (losses) included in earnings related to financial assets still held at the reporting date $ (2,201) $ (2,733)