v3.26.3
FAIR VALUE MEASUREMENTS - Schedule of fair value measurement of level 3 financial assets and liabilities (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Partnership interests and other investments        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Fair value adjustments   $ (1,029)   $ 0
Level 3 | Contingent Consideration        
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]        
Balance at beginning of period $ 0 4,608 $ 0 4,538
Fair value adjustments 0 (4,560) 0 (4,394)
Relating to undistributed earnings 0   0  
Purchases/originations 0 0 0 0
Sales 0   0 0
Settlements/repayments 0 (48) 0 (144)
Transfers in and/or out of Level 3 0   0  
Balance at end of period 0 0 0 0
Change in unrealized gains (losses) 0 4,560 0 4,394
Level 3 | Liability-Classified Warrants        
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]        
Balance at beginning of period 0 4,160 6,400 0
Fair value adjustments 0 4,340 9,410 640
Relating to undistributed earnings 0   0  
Purchases/originations 0 0 0 7,860
Sales 0   0 0
Settlements/repayments 0 0 (15,810) 0
Transfers in and/or out of Level 3 0   0  
Balance at end of period 0 8,500 0 8,500
Change in unrealized gains (losses) 0 (4,340) 0 (640)
Level 3 | Embedded Derivatives        
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]        
Balance at beginning of period 797 0 0 0
Fair value adjustments 47 0 844 (8,119)
Relating to undistributed earnings 0   0  
Purchases/originations 190 0 190 11,244
Sales 0   0 0
Settlements/repayments (844) 0 (844) (3,125)
Transfers in and/or out of Level 3 0   0  
Balance at end of period 190 0 190 0
Change in unrealized gains (losses) (47) 0 844 8,119
Level 3 | Equity Securities        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Balance at beginning of period 109,048 27,726 71,223 40,516
Fair value adjustments (11,791) 645 (5,822) (3,003)
Relating to undistributed earnings 0   0  
Purchases/originations 129,162 175,599 504,913 201,466
Sales 0   0 (10,000)
Settlements/repayments (196,023) (174,993) (539,918) (200,002)
Transfers in and/or out of Level 3 0   0  
Balance at end of period 30,396 28,977 30,396 28,977
Change in unrealized gains (losses) (2,746) 644 (2,171) (3,655)
Level 3 | Equity Securities | Income Statement Location [Axis]: us-gaap:GainLossOnInvestments        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Fair value adjustments (5,428) 682 (3,480) (1,791)
Level 3 | Equity Securities | Income Statement Location [Axis]: us-gaap:Revenues        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Fair value adjustments (6,363) (37) (2,342) (1,212)
Level 3 | Partnership interests and other investments        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Balance at beginning of period 83,026 1,029 40,082 0
Fair value adjustments 0 (1,029) 0  
Relating to undistributed earnings (11,685)   31,259  
Purchases/originations 0 0 0 0
Sales 0   0 0
Settlements/repayments 0 0 0 0
Transfers in and/or out of Level 3 0   0  
Balance at end of period 71,341 0 71,341 0
Change in unrealized gains (losses) 0 (1,029) 0 0
Level 3 | Loans Receivable at Fair Value        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Balance at beginning of period 38,802 48,980 26,303 90,103
Fair value adjustments 1,215 1,299 12,005 (5,997)
Relating to undistributed earnings 367   1,084  
Purchases/originations 6,689 47,580 50,886 106,212
Sales 0   0 (10,415)
Settlements/repayments (36,275) (42,841) (79,480) (124,885)
Transfers in and/or out of Level 3 0   0  
Balance at end of period 10,798 55,018 10,798 55,018
Change in unrealized gains (losses) (156) 1,183 301 (8,834)
Level 3 | Corporate bonds        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Balance at beginning of period 0 0 0 0
Fair value adjustments (7,582) 0 (7,582) 0
Relating to undistributed earnings 0   0  
Purchases/originations 0 0 0 0
Sales (13,076)   (13,076) 0
Settlements/repayments 0 0 0 0
Transfers in and/or out of Level 3 30,658   30,658  
Balance at end of period 10,000 0 10,000 0
Change in unrealized gains (losses) (5,444) 0 (5,444) $ 0
Level 3 | Corporate bonds | Income Statement Location [Axis]: us-gaap:GainLossOnInvestments        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Fair value adjustments (2,138)   (2,138)  
Level 3 | Corporate bonds | Income Statement Location [Axis]: us-gaap:Revenues        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Fair value adjustments $ (5,444)   $ (5,444)  
Level 3 | Other Assets | Income Statement Location [Axis]: us-gaap:GainLossOnInvestments        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Fair value adjustments   (902)    
Level 3 | Other Assets | Income Statement Location [Axis]: us-gaap:Revenues        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Fair value adjustments   $ (127)