v3.26.3
Investments - Schedule of Ownership Percentage in Two Sigma Funds (Details)
Sep. 30, 2026
Two Sigma Spectrum Portfolio, LLC  
Marketable Securities [Line Items]  
Percentage of ownership in funds 12.30%
Two Sigma Equity Spectrum Portfolio, LLC  
Marketable Securities [Line Items]  
Percentage of ownership in funds 9.60%
Two Sigma Absolute Return Portfolio, LLC  
Marketable Securities [Line Items]  
Percentage of ownership in funds 0.20%
Two Sigma Futures Portfolio, LLC  
Marketable Securities [Line Items]  
Percentage of ownership in funds 6.50%
Two Sigma Horizon Portfolio, LLC  
Marketable Securities [Line Items]  
Percentage of ownership in funds 5.20%
Two Sigma Navigator Portfolio, LLC  
Marketable Securities [Line Items]  
Percentage of ownership in funds 5.80%
Two Sigma Kuiper Portfolio, LLC  
Marketable Securities [Line Items]  
Percentage of ownership in funds 5.10%