v3.25.2
Average Annual Total Returns - Sphere 500 Climate Fund Class R6
 12 Months Ended 39 Months Ended
Sep. 15, 2025
Dec. 31, 2024
Dec. 31, 2024
Prospectus [Line Items]      
Average Annual Return, Label [Optional Text] Return Before Taxes    
Average Annual Return, Percent   25.12% 11.28%
Performance Inception Date Oct. 04, 2021    
After Taxes on Distributions      
Prospectus [Line Items]      
Average Annual Return, Percent   24.78% 10.99%
After Taxes on Distributions and Sales      
Prospectus [Line Items]      
Average Annual Return, Percent   15.07% 8.76%
S&P 500® Index (reflects no deduction for fees, expenses or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent [1]   25.02% 11.85%
Sphere 500 Fossil-Free Index™ (reflects no deduction for fees, expenses or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent [2]   26.26% 11.38%
[1] The S&P 500 Index is a market-capitalization-weighted index of the 500 largest U.S. publicly traded companies. The S&P 500 Index is a float-weighted index, meaning company market capitalizations are adjusted by the number of shares available for public trading. Investors cannot invest directly in an index or benchmark. Index returns are gross of any fees, brokerage commission or other expenses of investing.
[2] For additional information regarding this index, see the discussion under the sub-heading “The Index” in the Summary Section of this Prospectus. Investors cannot invest directly in an index or benchmark. Index returns are gross of any fees, brokerage commission or other expenses of investing.