v3.26.1
BORROWINGS - Components of Interest Expense - Credit Facility (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Line of Credit Facility [Line Items]          
Amortization of deferred financing costs and debt issuance costs       $ 1,710 $ 1,491
Cash paid for interest expense and credit facility fees       41,756 37,974
Securitizations | Credit Facility | Line of Credit          
Line of Credit Facility [Line Items]          
Interest expense $ 4,801   $ 4,515 10,169 9,009
Facility unused commitment fee 509   579 1,010 1,122
Amortization of deferred financing costs and debt issuance costs 282   261 565 482
Total interest expense and credit facility fees 5,592   5,355 11,744 10,613
Cash paid for interest expense and credit facility fees 5,616   5,141 11,971 9,685
Weighted average debt principal outstanding $ 386,629   $ 313,852 $ 406,203 $ 303,014
Weighted average interest rate 4.91%   5.69% 4.98% 5.91%
Securitizations | CSL III SPV Credit Facility | Line of Credit          
Line of Credit Facility [Line Items]          
Interest expense   $ 3,369 $ 3,164    
Facility unused commitment fee   59 57    
Total interest expense and credit facility fees   3,428 3,221    
Cash paid for interest expense and credit facility fees   2,912 2,912    
Weighted average debt principal outstanding   $ 176,938 $ 175,341    
Weighted average interest rate   7.14% 7.14%