v3.25.2
Financial Highlights - Schedule of Financial Highlights (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
 [4],[5],[6]
OPERATING PERFORMANCE PER SHARE          
Net assets, end of period $ 1,319,892 [1],[2],[3]   $ 1,319,892 [1],[2],[3]   $ 1,231,208
Distributions declared     $ 20,919 $ 18,021  
Class FA  Shares          
OPERATING PERFORMANCE PER SHARE          
Net Asset Value, Beginning of Period (in usd per share)     $ 39.55 $ 36.67  
Net investment income, before reimbursement of Expense Support (reimbursement) (in usd per share)     0.55 0.63  
Expense Support (reimbursement) (in usd per share)     0.02 0  
Net investment income (in usd per share)     0.57 0.63  
Net realized and unrealized gains, net of taxes (in usd per share)     1.60 1.16  
Net increase resulting from investment operations (in usd per share) $ 1.56 $ 0.94 2.17 1.79  
Distributions to shareholders (in usd per share)     (0.63) (0.63)  
Net Decrease Resulting From Distributions to Shareholders (in usd per share)     (0.63) (0.63)  
Net Asset Value, End of Period (in usd per share) $ 41.09 $ 37.83 $ 41.09 $ 37.83  
Net assets, end of period $ 160,316 $ 153,969 $ 160,316 $ 153,969  
Average net assets     $ 158,089 $ 153,211  
Shares outstanding end of period (in shares) 3,902 4,070 3,902 4,070  
Distributions declared     $ 2,481 $ 2,590  
Total investment return based on net asset value before total return incentive fee (as a percent)     6.18% 5.45%  
Total investment return based on net asset value after total return incentive fee (as a percent)     5.43% 4.79%  
Ratios to average net assets:          
Total operating expenses before total return incentive fee     0.55% 0.62%  
Total operating expenses before Expense Support (reimbursement)       1.15%  
Total operating expenses     1.10% 1.15%  
Net investment income before total return incentive fee     2.03% 2.23%  
Net investment income     1.43% 1.70%  
Investment company, incentive allocation to average net assets, percentage     8.00%    
Class A Shares          
OPERATING PERFORMANCE PER SHARE          
Net Asset Value, Beginning of Period (in usd per share)     $ 35.68 $ 33.57  
Net investment income, before reimbursement of Expense Support (reimbursement) (in usd per share)     0.13 0.27  
Expense Support (reimbursement) (in usd per share)     0.08 0  
Net investment income (in usd per share)     0.21 0.27  
Net realized and unrealized gains, net of taxes (in usd per share)     1.60 1.18  
Net increase resulting from investment operations (in usd per share) $ 1.27 $ 0.80 1.81 1.45  
Distributions to shareholders (in usd per share)     (0.63) (0.63)  
Net Decrease Resulting From Distributions to Shareholders (in usd per share)     (0.63) (0.63)  
Net Asset Value, End of Period (in usd per share) $ 36.86 $ 34.39 $ 36.86 $ 34.39  
Net assets, end of period $ 325,894 $ 225,141 $ 325,894 $ 225,141  
Average net assets     $ 285,338 $ 193,949  
Shares outstanding end of period (in shares) 8,841 6,546 8,841 6,546  
Distributions declared     $ 5,234 $ 3,581  
Total investment return based on net asset value before total return incentive fee (as a percent)     6.30% 5.35%  
Total investment return based on net asset value after total return incentive fee (as a percent)     5.12% 4.35%  
Ratios to average net assets:          
Total operating expenses before total return incentive fee     1.37% 1.39%  
Total operating expenses before Expense Support (reimbursement)       2.51%  
Total operating expenses     2.42% 2.51%  
Net investment income before total return incentive fee     1.90% 1.92%  
Net investment income     0.61% 0.80%  
Investment company, incentive allocation to average net assets, percentage     18.00%    
Class T Shares          
OPERATING PERFORMANCE PER SHARE          
Net Asset Value, Beginning of Period (in usd per share)     $ 35.72 $ 33.64  
Net investment income, before reimbursement of Expense Support (reimbursement) (in usd per share)     (0.04) 0.14  
Expense Support (reimbursement) (in usd per share)     0.04 0  
Net investment income (in usd per share)     0 0.14  
Net realized and unrealized gains, net of taxes (in usd per share)     1.57 1.16  
Net increase resulting from investment operations (in usd per share) $ 1.07 $ 0.69 1.57 1.30  
Distributions to shareholders (in usd per share)     (0.50) (0.50)  
Net Decrease Resulting From Distributions to Shareholders (in usd per share)     (0.50) (0.50)  
Net Asset Value, End of Period (in usd per share) $ 36.79 $ 34.44 $ 36.79 $ 34.44  
Net assets, end of period $ 79,470 $ 87,854 $ 79,470 $ 87,854  
Average net assets     $ 88,628 $ 88,113  
Shares outstanding end of period (in shares) 2,160 2,551 2,160 2,551  
Distributions declared     $ 1,240 $ 1,302  
Total investment return based on net asset value before total return incentive fee (as a percent)     5.65% 4.89%  
Total investment return based on net asset value after total return incentive fee (as a percent)     4.44% 3.90%  
Ratios to average net assets:          
Total operating expenses before total return incentive fee     1.82% 1.73%  
Total operating expenses before Expense Support (reimbursement)       2.69%  
Total operating expenses     2.74% 2.69%  
Net investment income before total return incentive fee     1.04% 1.38%  
Net investment income     0.00% 0.43%  
Investment company, incentive allocation to average net assets, percentage     11.00%    
Class D Shares          
OPERATING PERFORMANCE PER SHARE          
Net Asset Value, Beginning of Period (in usd per share)     $ 35.42 $ 33.31  
Net investment income, before reimbursement of Expense Support (reimbursement) (in usd per share)     0.07 0.24  
Expense Support (reimbursement) (in usd per share)     0.07 0  
Net investment income (in usd per share)     0.14 0.24  
Net realized and unrealized gains, net of taxes (in usd per share)     1.58 1.16  
Net increase resulting from investment operations (in usd per share) $ 1.21 $ 0.77 1.72 1.40  
Distributions to shareholders (in usd per share)     (0.56) (0.56)  
Net Decrease Resulting From Distributions to Shareholders (in usd per share)     (0.56) (0.56)  
Net Asset Value, End of Period (in usd per share) $ 36.58 $ 34.15 $ 36.58 $ 34.15  
Net assets, end of period $ 110,965 $ 99,566 $ 110,965 $ 99,566  
Average net assets     $ 106,764 $ 91,561  
Shares outstanding end of period (in shares) 3,033 2,915 3,033 2,915  
Distributions declared     $ 1,720 $ 1,535  
Total investment return based on net asset value before total return incentive fee (as a percent)     6.10% 5.19%  
Total investment return based on net asset value after total return incentive fee (as a percent)     4.91% 4.25%  
Ratios to average net assets:          
Total operating expenses before total return incentive fee     1.53% 1.55%  
Total operating expenses before Expense Support (reimbursement)       2.52%  
Total operating expenses     2.51% 2.52%  
Net investment income before total return incentive fee     1.57% 1.70%  
Net investment income     0.39% 0.72%  
Investment company, incentive allocation to average net assets, percentage     17.00%    
Class I Shares          
OPERATING PERFORMANCE PER SHARE          
Net Asset Value, Beginning of Period (in usd per share)     $ 36.12 $ 34.06  
Net investment income, before reimbursement of Expense Support (reimbursement) (in usd per share)     0.08 0.27  
Expense Support (reimbursement) (in usd per share)     0.18 0.02  
Net investment income (in usd per share)     0.26 0.29  
Net realized and unrealized gains, net of taxes (in usd per share)     1.60 1.17  
Net increase resulting from investment operations (in usd per share) $ 1.34 $ 0.77 1.86 1.46  
Distributions to shareholders (in usd per share)     (0.63) (0.63)  
Net Decrease Resulting From Distributions to Shareholders (in usd per share)     (0.63) (0.63)  
Net Asset Value, End of Period (in usd per share) $ 37.35 $ 34.89 $ 37.35 $ 34.89  
Net assets, end of period $ 572,321 $ 463,428 $ 572,321 $ 463,428  
Average net assets     $ 520,384 $ 434,739  
Shares outstanding end of period (in shares) 15,321 13,283 15,321 13,283  
Distributions declared     $ 9,175 $ 7,921  
Total investment return based on net asset value before total return incentive fee (as a percent)     6.34% 5.37%  
Total investment return based on net asset value after total return incentive fee (as a percent)     5.19% 4.32%  
Ratios to average net assets:          
Total operating expenses before total return incentive fee     1.49% 1.30%  
Total operating expenses before Expense Support (reimbursement)       2.38%  
Total operating expenses     2.19% 2.30%  
Net investment income before total return incentive fee     1.93% 1.93%  
Net investment income     0.73% 0.85%  
Investment company, incentive allocation to average net assets, percentage     43.00% 7.00%  
Class S Shares          
OPERATING PERFORMANCE PER SHARE          
Net Asset Value, Beginning of Period (in usd per share)     $ 40.09 $ 37.25  
Net investment income, before reimbursement of Expense Support (reimbursement) (in usd per share)     0.53 0.61  
Expense Support (reimbursement) (in usd per share)     0.09 0.01  
Net investment income (in usd per share)     0.62 0.62  
Net realized and unrealized gains, net of taxes (in usd per share)     1.60 1.17  
Net increase resulting from investment operations (in usd per share) $ 1.61 $ 0.92 2.22 1.79  
Distributions to shareholders (in usd per share)     (0.63) (0.63)  
Net Decrease Resulting From Distributions to Shareholders (in usd per share)     (0.63) (0.63)  
Net Asset Value, End of Period (in usd per share) $ 41.68 $ 38.41 $ 41.68 $ 38.41  
Net assets, end of period $ 70,926 $ 66,351 $ 70,926 $ 66,351  
Average net assets     $ 68,824 $ 65,669  
Shares outstanding end of period (in shares) 1,702 1,728 1,702 1,728  
Distributions declared     $ 1,069 $ 1,092  
Total investment return based on net asset value before total return incentive fee (as a percent)     6.18% 5.38%  
Total investment return based on net asset value after total return incentive fee (as a percent)     5.58% 4.84%  
Ratios to average net assets:          
Total operating expenses before total return incentive fee     0.61% 0.67%  
Total operating expenses before Expense Support (reimbursement)       1.19%  
Total operating expenses     0.98% 1.16%  
Net investment income before total return incentive fee     2.13% 2.18%  
Net investment income     1.54% 1.66%  
Investment company, incentive allocation to average net assets, percentage     37.00% 5.00%  
[1] All investments are US based unless otherwise noted.
[2] Percentages represent fair value as a percentage of net assets for each investment category.
[3] Security may be an obligation of one or more entities affiliated with the named company.
[4] All investments are US based unless otherwise noted.
[5] Percentages represent fair value as a percentage of net assets for each investment category.
[6] Security may be an obligation of one or more entities affiliated with the named company.