v3.26.1
Fair Value Investments - Summary of Valuation of Company's Financial Assets that Fall within Fair Value Hierarchy (Details) - USD ($)
Jun. 30, 2026
Dec. 31, 2025
Assets    
Cash and cash equivalents $ 8,624,637 $ 54,058,172
Total equity investments 899,880,724 797,218,239
Total assets 908,505,361 851,276,411
HHH    
Assets    
Total equity investments 643,410,000 717,930,000
Pershing Square Holdco, L.P.    
Assets    
Total equity investments 56,820,724 79,288,239
PSUS    
Assets    
Total equity investments 199,650,000  
Level I    
Assets    
Cash and cash equivalents 8,624,637 54,058,172
Total equity investments 792,930,000 717,930,000
Total assets 801,554,637 771,988,172
Level I | HHH    
Assets    
Total equity investments 643,410,000 717,930,000
Level I | Pershing Square Holdco, L.P.    
Assets    
Total equity investments 0  
Level I | PSUS    
Assets    
Total equity investments 149,520,000  
Level III    
Assets    
Total equity investments 50,130,000  
Total assets 50,130,000  
Level III | PSUS    
Assets    
Total equity investments 50,130,000  
NAV    
Assets    
Total equity investments 56,820,724 79,288,239
Total assets 56,820,724 79,288,239
NAV | Pershing Square Holdco, L.P.    
Assets    
Total equity investments $ 56,820,724 $ 79,288,239