v3.26.1
Consolidated Statements of Cash Flows (unaudited) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Sep. 30, 2025
Cash flows from operating activities          
Net increase (decrease) in net assets resulting from operations $ 57,009 $ 90,058 $ 75,459 $ 280,356  
Adjustments to reconcile net increase (decrease) in net assets resulting from operations to net cash provided by (used in) operating activities:          
Amortization of deferred debt issuance costs 2,724 2,413 7,903 7,537  
Accretion of discounts and amortization of premiums on investments     (12,688) (5,524)  
Accretion of discounts and amortization of premiums on issued debt securities     (740) 2,507  
Net realized (gain) loss on investments     15,240 41,844  
Net realized (gain) loss on foreign currency transactions 13,710 400 13,476 4,279  
Net realized (gain) loss on forward currency contracts 0 0 10,258 (7,203)  
Net realized (gain) loss on extinguishment of debt 0 0 0 48  
Net change in unrealized (appreciation) depreciation on investments     174,193 (25,877)  
Net change in unrealized (appreciation) depreciation on translation of assets and liabilities in foreign currencies (3,171) (23,857) (821) (12,311)  
Proceeds from (fundings of) revolving loans, net     (14,147) (7,592)  
Fundings of investments     (367,296) (1,781,515)  
Proceeds from principal payments and sales of portfolio investments     828,977 1,146,022  
Proceeds from settlements of forward currency contracts     (10,258) 10,264  
Payment-in-kind interest capitalized (16,439) (12,518) (49,157) (40,439)  
Non-cash dividends capitalized     (17,424) (23,091)  
Proceeds from non-cash dividends     358 4,288  
Changes in operating assets and liabilities:          
Cash collateral held at broker for derivatives     0 (8,410)  
Interest receivable     7,143 3,253  
Receivable for investments     2,076 (1,263)  
Other assets     8,106 261  
Interest payable     9,753 5,745  
Management and income incentive fees payable     (4,732) 6,994  
Accrued trustee fees     (550) 343  
Accounts payable and other liabilities     (449) (557)  
Net cash provided by (used in) operating activities     653,520 (379,713)  
Cash flows from financing activities          
Borrowings on debt     1,017,122 3,517,912  
Repayments of debt     (1,351,772) (3,008,603)  
Capitalized debt issuance costs     (6,145) (9,029)  
Net proceeds from issuance of common stock (Note 11)     0 37,434  
Purchases of common stock (Note 11)     (78,074) (35,466)  
Distributions paid     (227,649) (280,970)  
Purchases of common stock for dividend reinvestment plan     (47,434) (20,554)  
Net cash provided by (used in) financing activities     (693,952) 200,724  
Net change in cash, cash equivalents, foreign currencies, restricted cash, restricted cash equivalents and restricted foreign currencies     (40,432) (178,989)  
Effect of foreign currency exchange rates     (1,348) (1,790)  
Cash, cash equivalents, foreign currencies, restricted cash, restricted cash equivalents and restricted foreign currencies, beginning of period     112,443 [1] 359,552 $ 359,552
Cash, cash equivalents, foreign currencies, restricted cash, restricted cash equivalents and restricted foreign currencies, end of period 70,663 [1] 178,773 70,663 [1] 178,773 112,443 [1]
Supplemental disclosure of cash flow information:          
Cash paid during the period for interest [2]     171,335 199,922  
Distributions declared for the period 275,083 335,228 275,083 335,228  
Supplemental disclosure of non-cash financing activities:          
Stock issued in connection with dividend reinvestment plan     0 33,704  
Reconciliation of cash and cash equivalents, foreign currencies and restricted cash and cash equivalents and restricted foreign currencies          
Cash 12,949   12,949   0
Cash equivalents 13   13   11,935
Foreign currencies (cost of $7,132 and $11,685, respectively) 7,044   7,044   11,681
Restricted cash 7,098   7,098   7,107
Restricted cash equivalents 43,559   43,559   81,720
Total cash and cash equivalents, foreign currencies, restricted cash and cash equivalents and restricted foreign currencies shown in the Consolidated Statements of Cash Flows 70,663 [1] 178,773 70,663 [1] 178,773 $ 112,443 [1]
Interest Rate Swap          
Adjustments to reconcile net increase (decrease) in net assets resulting from operations to net cash provided by (used in) operating activities:          
Net change in unrealized (appreciation) depreciation on interest rate swap and forward currency contracts     125 4,541  
Forward currency contracts          
Adjustments to reconcile net increase (decrease) in net assets resulting from operations to net cash provided by (used in) operating activities:          
Net realized (gain) loss on forward currency contracts 0 0 10,258 (7,203)  
Net change in unrealized (appreciation) depreciation on interest rate swap and forward currency contracts $ (6,951) $ 22,219 $ (21,285) $ 15,787  
[1] See Note 2 for a description of cash, cash equivalents, foreign currencies, restricted cash, restricted cash equivalents and restricted foreign currencies.
[2] Includes cash paid or received for contractual interest rate swaps, which may have different contractual settlement dates among the (i) fixed interest leg, (ii) floating interest leg and (iii) the debt instrument.