v3.25.1
INVESTMENTS - Joint Venture Summarized Financial Information (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Investment Company, Balance Sheet Items [Abstract]        
Cash $ 6,941 $ 15,398    
Restricted cash 28,226 30,919    
Other assets 60,636 56,102    
Total assets 2,059,912 1,429,513    
Total liabilities 1,763,630 1,180,467    
Net assets 296,282 249,046 $ 375,358 $ 403,887
Total liabilities and shareholders' equity 2,059,912 1,429,513    
Investment Company, Income and Expense [Abstract]        
Net investment income (loss)     (6,476)  
Unrealized appreciation (depreciation) on investments 10,712 3,219 24,321  
Realized gain (loss) on derivative transactions     445  
Unrealized (loss) gain on derivative transactions 1,344 (699) 183  
Net increase in net assets resulting from operations 50,853 47,329 32,311  
Newtek Conventional Lending, LLC        
Investment Company, Balance Sheet Items [Abstract]        
Cash 587 612    
Restricted cash 5,513 3,298    
Investments in loans, at fair value 53,895 70,083    
Cost 52,751 68,404    
Other assets 1,737 1,614    
Total assets 61,732 75,607    
Securitization notes payable 25,322 38,805    
Other liabilities 867 905    
Total liabilities 26,189 39,710    
Net assets 35,543 35,897    
Total liabilities and shareholders' equity 61,732 75,607    
Investment Company, Income and Expense [Abstract]        
Interest and other income 4,984 6,160 6,966  
Total expenses 1,797 2,524 2,916  
Net investment income (loss) 3,187 3,636 4,050  
Unrealized appreciation (depreciation) on investments (536) 1,869 (4,494)  
Net increase in net assets resulting from operations 2,651 5,505 (444)  
Newtek-TSO JV        
Investment Company, Balance Sheet Items [Abstract]        
Cash 1,780 4,401    
Restricted cash 18,399 1,183    
Investments in loans, at fair value 183,084 66,689    
Cost 173,654 62,695    
Other assets 5,112 1,374    
Total assets 208,375 73,647    
Bank notes payable 0 29,636    
Securitization notes payable 140,224 0    
Other liabilities 427 1,092    
Total liabilities 140,651 30,728    
Net assets 67,724 42,919    
Total liabilities and shareholders' equity 208,375 73,647    
Investment Company, Income and Expense [Abstract]        
Interest and other income 17,964 3,823 101  
Total expenses 9,813 4,430 385  
Net investment income (loss) 8,151 (607) (284)  
Unrealized appreciation (depreciation) on investments 5,438 2,580 1,412  
Realized loss on investments 0 (16) 0  
Realized gain (loss) on derivative transactions (391) 399 0  
Unrealized (loss) gain on derivative transactions 694 (911) 218  
Net increase in net assets resulting from operations $ 13,892 $ 1,445 $ 1,346