v3.26.3
Average Annual Total Returns
 12 Months Ended 60 Months Ended 120 Months Ended
Oct. 28, 2026
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
New Covenant Equity Fund | New Covenant Equity Fund        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Fund Return Before Taxes      
Average Annual Return, Percent   15.96% 12.46% 13.27%
New Covenant Equity Fund | New Covenant Equity Fund | After Taxes on Distributions        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Fund Return After Taxes on Distributions      
Average Annual Return, Percent   13.47% 10.75% 11.76%
New Covenant Equity Fund | New Covenant Equity Fund | After Taxes on Distributions and Sales        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Fund Return After Taxes on Distributions and Sale of Fund Shares      
Average Annual Return, Percent   11.16% 9.72% 10.71%
New Covenant Equity Fund | Russell 3000 Index Return (reflects no deduction for fees, expenses or taxes)        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Russell 3000 Index Return (reflects no deduction for fees, expenses or taxes)      
Average Annual Return, Percent   17.15% 13.15% 14.29%
New Covenant Income Fund | New Covenant Income Fund        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Fund Return Before Taxes      
Average Annual Return, Percent   7.12% 0.18% 1.84%
New Covenant Income Fund | New Covenant Income Fund | After Taxes on Distributions        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Fund Return After Taxes on Distributions      
Average Annual Return, Percent   5.70% (0.88%) 0.81%
New Covenant Income Fund | New Covenant Income Fund | After Taxes on Distributions and Sales        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Fund Return After Taxes on Distributions and Sale of Fund Shares      
Average Annual Return, Percent   4.19% (0.32%) 0.97%
New Covenant Income Fund | Bloomberg U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Bloomberg U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)      
Average Annual Return, Percent   7.30% (0.36%) 2.01%
New Covenant Income Fund | Bloomberg Intermediate U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Bloomberg Intermediate U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)      
Average Annual Return, Percent   7.45% 0.68% 2.06%
New Covenant Balanced Growth Fund | New Covenant Balanced Growth Fund        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Fund Return Before Taxes      
Average Annual Return, Percent   12.54% 7.57% 8.79%
New Covenant Balanced Growth Fund | New Covenant Balanced Growth Fund | After Taxes on Distributions        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Fund Return After Taxes on Distributions      
Average Annual Return, Percent   9.98% 6.04% 7.33%
New Covenant Balanced Growth Fund | New Covenant Balanced Growth Fund | After Taxes on Distributions and Sales        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Fund Return After Taxes on Distributions and Sale of Fund Shares      
Average Annual Return, Percent   8.72% 5.61% 6.72%
New Covenant Balanced Growth Fund | Russell 3000 Index Return (reflects no deduction for fees, expenses or taxes)        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Russell 3000 Index Return (reflects no deduction for fees, expenses or taxes)      
Average Annual Return, Percent   17.15% 13.15% 14.29%
New Covenant Balanced Growth Fund | Bloomberg Intermediate U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Bloomberg Intermediate U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)      
Average Annual Return, Percent   7.45% 0.68% 2.06%
New Covenant Balanced Growth Fund | Blended 60% Russell 3000 Index/ 40% Bloomberg Intermediate U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Blended 60% Russell 3000 Index/ 40% Bloomberg Intermediate U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)      
Average Annual Return, Percent   13.35% 8.22% 9.53%
New Covenant Balanced Income Fund | New Covenant Balanced Income Fund        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Fund Return Before Taxes      
Average Annual Return, Percent   10.37% 4.46% 5.87%
New Covenant Balanced Income Fund | New Covenant Balanced Income Fund | After Taxes on Distributions        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Fund Return After Taxes on Distributions      
Average Annual Return, Percent   8.38% 3.16% 4.57%
New Covenant Balanced Income Fund | New Covenant Balanced Income Fund | After Taxes on Distributions and Sales        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Fund Return After Taxes on Distributions and Sale of Fund Shares      
Average Annual Return, Percent   6.81% 3.09% 4.25%
New Covenant Balanced Income Fund | Russell 3000 Index Return (reflects no deduction for fees, expenses or taxes)        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Russell 3000 Index Return (reflects no deduction for fees, expenses or taxes)      
Average Annual Return, Percent   17.15% 13.15% 14.29%
New Covenant Balanced Income Fund | Bloomberg Intermediate U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Bloomberg Intermediate U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)      
Average Annual Return, Percent   7.45% 0.68% 2.06%
New Covenant Balanced Income Fund | Blended 35% Russell 3000 Index/ 65% Bloomberg Intermediate U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Blended 35% Russell 3000 Index/ 65% Bloomberg Intermediate U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)      
Average Annual Return, Percent   10.92% 5.09% 6.46%