New Covenant Equity Fund New Covenant Income Fund New Covenant Balanced Growth Fund New Covenant Balanced Income Fund New Covenant Equity Fund New Covenant Income Fund New Covenant Balanced Growth Fund New Covenant Balanced Income Fund New Covenant Equity Fund New Covenant Income Fund New Covenant Balanced Growth Fund New Covenant Balanced Income Fund Equity Market Risk [Member] Fixed Income Market Risk [Member] Market Risk [Member] Social-Witness Principles/Socially Responsible Investing Risk [Member] Asset Allocation Risk [Member] Tracking Error Risk [Member] Investment Company Risk [Member] Investment Style Risk [Member] Corporate Fixed Income Securities Risk [Member] U.S. Government Securities Risk [Member] Foreign Investment/Emerging Markets Risk [Member] Foreign Sovereign Debt Securities Risk [Member] Asset-Backed Securities Risk [Member] Mortgage-Backed Securities Risk [Member] Mortgage Dollar Rolls Risk [Member] Repurchase Agreement Risk [Member] Below Investment Grade Securities (Junk Bonds) Risk [Member] Large Capitalization Risk [Member] Small and Medium Capitalization Risk [Member] Real Estate Investment Trusts (REITs) Risk [Member] Derivatives Risk [Member] Leverage Risk [Member] Liquidity Risk [Member] Currency Risk [Member] Opportunity Risk [Member] Duration Risk [Member] Extension Risk [Member] Cash and Cash Equivalents Risk [Member] To-Be-Announced (TBA) Transactions Risk [Member] Commercial Paper Risk [Member] Portfolio Turnover Risk [Member] Preferred Stock Risk [Member] Depositary Receipts Risk [Member] Warrants and Rights Risk [Member] Exchange-Traded Funds (ETFs) Risk [Member] ETFs Risk [Member] Interest Rate Risk [Member] Credit Risk [Member] Prepayment Risk [Member] Russell 3000 Index Return (reflects no deduction for fees, expenses or taxes) Bloomberg U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes) Bloomberg Intermediate U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes) Blended 60% Russell 3000 Index/ 40% Bloomberg Intermediate U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes) Blended 35% Russell 3000 Index/ 65% Bloomberg Intermediate U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes) Tracking Error Risk Member Asset Backed Securities Risk Member CreditRiskMember Social Witness Principles Socially Responsible Investing Risk Member Mortgage Dollar Rolls Risk Member Warrants And Rights Risk Member doc_ New_ Covenant_ Balanced_ Income_ Fund Member Investment Style Risk Member Opportunity Risk Member Commercial Paper Risk Member USGovernment Securities Risk Member S000024941 Member Corporate Fixed Income Securities Risk Member doc_ New_ Covenant_ Income_ Fund Member C000013702 Member index_ Blended_35_ Russell_3000_ Index_65_ Bloomberg_ Intermediate_ US_ Aggregate_ Bond_ Index_reflects_no_deduction_for_fees_expenses_or_taxes Member Below Investment Grade Securities Junk Bonds Risk Member doc_ New_ Covenant_ Equity_ Fund Member Portfolio Turnover Risk Member Currency Risk Member Derivatives Risk Member Cash And Cash Equivalents Risk Member PrepaymentRiskMember C000074155 Member Mortgage Backed Securities Risk Member ETFs Risk Member Large Capitalization Risk Member S000024940 Member Foreign Investment Emerging Markets Risk Member doc_ New_ Covenant_ Balanced_ Growth_ Fund Member Asset Allocation Risk Member Preferred Stock Risk Member Equity Market Risk Member Investment Company Risk Member Exchange Traded Funds Risk Member S000005023 Member Liquidity Risk Member index_ Bloomberg_ Intermediate_ US_ Aggregate_ Bond_ Index_reflects_no_deduction_for_fees_expenses_or_taxes Member C000074154 Member Foreign Sovereign Debt Securities Risk Member Small And Medium Capitalization Risk Member Market Risk Member Extension Risk Member Leverage Risk Member Fixed Income Market Risk Member S000024942 Member index_ Russell_3000_ Index_ Return_reflects_no_deduction_for_fees_expenses_or_taxes Member InterestRateRiskMember index_ Blended_60_ Russell_3000_ Index_40_ Bloomberg_ Intermediate_ US_ Aggregate_ Bond_ Index_reflects_no_deduction_for_fees_expenses_or_taxes Member Real Estate Investment Trusts REITs Risk Member To Be Announced TBATransactions Risk Member Depositary Receipts Risk Member C000074153 Member Repurchase Agreement Risk Member index_ Bloomberg_ US_ Aggregate_ Bond_ Index_reflects_no_deduction_for_fees_expenses_or_taxes Member Duration Risk Member