v3.26.1
Fair Value Measurements - Summary of Fair Value Hierarchy of Financial Instruments (Details) - USD ($)
Mar. 31, 2026
Dec. 31, 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total fair value $ 2,893,651 $ 2,858,469
Fair Value Inputs    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total fair value 2,892,402  
Fair Value Inputs | Money Market Funds    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total fair value 48,029 74,993
Fair Value Inputs | First Lien Debt    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total fair value 2,608,259 2,568,302
Fair Value Inputs | Second Lien Debt    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total fair value 18,211 15,437
Fair Value Inputs | Other Equity    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total fair value 74,993 58,038
Fair Value Inputs | Preferred Equity    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total fair value 142,910 141,699
Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total fair value 48,029 74,993
Level 1 | Money Market Funds    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total fair value 48,029 74,993
Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total fair value 233,089 399,991
Level 2 | First Lien Debt    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total fair value 233,089 399,991
Level 3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total fair value 2,611,284 2,383,485
Level 3 | First Lien Debt    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total fair value 2,375,170 2,168,311
Level 3 | Second Lien Debt    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total fair value 18,211 15,437
Level 3 | Other Equity    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total fair value 74,993 58,038
Level 3 | Preferred Equity    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total fair value 142,910 $ 141,699
Measured at Net Asset Value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total fair value [1] $ 1,249  
[1] Certain investments that are measured at fair value using the net asset value per share (or its equivalent) practical expedient have not been categorized in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the consolidated balance sheets. The Company's $1,249 fair-value interest in Constellation Wealth Capital Fund II, L.P. ("CWC"), a private partnership making minority investments in wealth-management businesses, has $18,751 of unfunded commitments, is not redeemable, and the Company has no current plans to sell. The Company expects to receive distributions as CWC's underlying investments are realized over its initial eight-year term, which may be extended for up to four additional one-year periods.