Boston Trust Walden Equity Fund (WSEFX) N-CSRS30 Aug 24Certified semi-annual shareholder report (management investment company)Financial data

Company Profile

Form N-CSR Cover

Form N-CSR Cover	6 Months Ended
Form N-CSR Cover	Jun. 30, 2024
Shareholder Report [Line Items]
Document Type	N-CSRS
Amendment Flag	false
Registrant Name	Boston Trust Walden Funds
Entity Central Index Key	0000882748
Entity Investment Company Type	N-1A
Document Period End Date	Jun. 30, 2024

Shareholder Report

Shareholder Report	6 Months Ended
Shareholder Report	Jun. 30, 2024 USD ($) Holding
Shareholder Report [Line Items]
Document Type	N-CSRS
Amendment Flag	false
Registrant Name	Boston Trust Walden Funds
Entity Central Index Key	0000882748
Entity Investment Company Type	N-1A
Document Period End Date	Jun. 30, 2024
Boston Trust Asset Management Fund
Shareholder Report [Line Items]
Fund Name	Boston Trust Asset Management Fund
Class Name	Boston Trust Asset Management Fund
Trading Symbol	BTBFX
Annual or Semi-Annual Statement [Text Block]	This semi-annual shareholder report contains important information about the Boston Trust Asset Management Fund (“Fund”) for the period of January 1, 2024, to June 30, 2024.
Shareholder Report Annual or Semi-Annual	semi-annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at www.bostontrustwalden.com/investment-services/mutual-funds/
Additional Information Phone Number	1-800-282-8782 ext. 7050
Additional Information Website	www.bostontrustwalden.com/investment-services/mutual-funds/
Expenses [Text Block]	Fund Expenses What were the Fund costs for the last six months? (Based on a hypothetical $10,000 investment) Fund Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Boston Trust Asset Management Fund $ 0.80 %
Expenses Paid, Amount	$ 41
Expense Ratio, Percent	0.80%
Net Assets	$ 581,265,416
Holdings Count \| Holding	108
Investment Company, Portfolio Turnover	7.44%
Additional Fund Statistics [Text Block]	Key Fund Statistics The following table outlines key Fund statistics that you should pay attention to. Fund net assets $ Total number of portfolio holdings 108 Portfolio turnover rate for the period 7.44 %
Holdings [Text Block]	Graphical Representation of Holdings The tables below show the investment makeup of the Fund, representing percentages of the total net assets of the Fund. TOP TEN HOLDINGS Microsoft Corp. 7.6 % Alphabet, Inc., Class C 6.9 % Apple, Inc. 5.2 % Accenture PLC, Class A 3.2 % Costco Wholesale Corp. 3.1 % JPMorgan Chase & Co. 2.7 % U.S. Treasury Bond 2.7 % Automatic Data Processing, Inc. 2.7 % Visa, Inc., Class A 2.6 % U.S. Treasury Note 2.3 % Industry Sector Allocation
Largest Holdings [Text Block]	TOP TEN HOLDINGS Microsoft Corp. 7.6 % Alphabet, Inc., Class C 6.9 % Apple, Inc. 5.2 % Accenture PLC, Class A 3.2 % Costco Wholesale Corp. 3.1 % JPMorgan Chase & Co. 2.7 % U.S. Treasury Bond 2.7 % Automatic Data Processing, Inc. 2.7 % Visa, Inc., Class A 2.6 % U.S. Treasury Note 2.3 %
Boston Trust Equity Fund
Shareholder Report [Line Items]
Fund Name	Boston Trust Equity Fund
Class Name	Boston Trust Equity Fund
Trading Symbol	BTEFX
Annual or Semi-Annual Statement [Text Block]	This semi-annual shareholder report contains important information about the Boston Trust Equity Fund (“Fund”) for the period of January 1, 2024, to June 30, 2024.
Shareholder Report Annual or Semi-Annual	semi-annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at www.bostontrustwalden.com/investment-services/mutual-funds/
Additional Information Phone Number	1-800-282-8782 ext. 7050
Additional Information Website	www.bostontrustwalden.com/investment-services/mutual-funds/
Expenses [Text Block]	Fund Expenses What were the Fund costs for the last six months? (Based on a hypothetical $10,000 investment) Fund Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Boston Trust Equity Fund $ 0.83 %
Expenses Paid, Amount	$ 43
Expense Ratio, Percent	0.83%
Net Assets	$ 239,233,354
Holdings Count \| Holding	60
Investment Company, Portfolio Turnover	3.01%
Additional Fund Statistics [Text Block]	Key Fund Statistics The following table outlines key Fund statistics that you should pay attention to. Fund net assets $ Total number of portfolio holdings 60 Portfolio turnover rate for the period 3.01 %
Holdings [Text Block]	Graphical Representation of Holdings The tables below show the investment makeup of the Fund, representing percentages of the total net assets of the Fund. TOP TEN HOLDINGS Microsoft Corp. 9.5 % Alphabet, Inc., Class C 7.7 % Apple, Inc. 7.1 % Costco Wholesale Corp. 4.3 % JPMorgan Chase & Co. 3.6 % Accenture PLC, Class A 3.2 % Visa, Inc., Class A 3.1 % W.W. Grainger, Inc. 2.5 % Exxon Mobil Corp. 2.4 % Oracle Corp. 2.4 % Industry Sector Allocation
Largest Holdings [Text Block]	TOP TEN HOLDINGS Microsoft Corp. 9.5 % Alphabet, Inc., Class C 7.7 % Apple, Inc. 7.1 % Costco Wholesale Corp. 4.3 % JPMorgan Chase & Co. 3.6 % Accenture PLC, Class A 3.2 % Visa, Inc., Class A 3.1 % W.W. Grainger, Inc. 2.5 % Exxon Mobil Corp. 2.4 % Oracle Corp. 2.4 %
Boston Trust Midcap Fund
Shareholder Report [Line Items]
Fund Name	Boston Trust Midcap Fund
Class Name	Boston Trust Midcap Fund
Trading Symbol	BTMFX
Annual or Semi-Annual Statement [Text Block]	This semi-annual shareholder report contains important information about the Boston Trust Midcap Fund (“Fund”) for the period of January 1, 2024, to June 30, 2024.
Shareholder Report Annual or Semi-Annual	semi-annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at www.bostontrustwalden.com/investment-services/mutual-funds/
Additional Information Phone Number	1-800-282-8782 ext. 7050
Additional Information Website	www.bostontrustwalden.com/investment-services/mutual-funds/
Expenses [Text Block]	Fund Expenses What were the Fund costs for the last six months? (Based on a hypothetical $10,000 investment) Fund Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Boston Trust Midcap Fund $ 0.98 %
Expenses Paid, Amount	$ 49
Expense Ratio, Percent	0.98%
Net Assets	$ 238,336,560
Holdings Count \| Holding	72
Investment Company, Portfolio Turnover	13.98%
Additional Fund Statistics [Text Block]	Key Fund Statistics The following table outlines key Fund statistics that you should pay attention to. Fund net assets $ Total number of portfolio holdings 72 Portfolio turnover rate for the period 13.98 %
Holdings [Text Block]	Graphical Representation of Holdings The tables below show the investment makeup of the Fund, representing percentages of the total net assets of the Fund. TOP TEN HOLDINGS Paychex, Inc. 2.7 % Teradyne, Inc. 2.5 % Marathon Oil Corp. 2.2 % Williams-Sonoma, Inc. 2.0 % Ross Stores, Inc. 2.0 % SEI Investments Co. 2.0 % Baker Hughes Co. 2.0 % ANSYS, Inc. 1.9 % Cooper (The) Cos., Inc. 1.9 % TE Connectivity Ltd. 1.8 % Industry Sector Allocation
Largest Holdings [Text Block]	TOP TEN HOLDINGS Paychex, Inc. 2.7 % Teradyne, Inc. 2.5 % Marathon Oil Corp. 2.2 % Williams-Sonoma, Inc. 2.0 % Ross Stores, Inc. 2.0 % SEI Investments Co. 2.0 % Baker Hughes Co. 2.0 % ANSYS, Inc. 1.9 % Cooper (The) Cos., Inc. 1.9 % TE Connectivity Ltd. 1.8 %
Boston Trust SMID Cap Fund
Shareholder Report [Line Items]
Fund Name	Boston Trust SMID Cap Fund
Class Name	Boston Trust SMID Cap Fund
Trading Symbol	BTSMX
Annual or Semi-Annual Statement [Text Block]	This semi-annual shareholder report contains important information about the Boston Trust SMID Cap Fund (“Fund”) for the period of January 1, 2024, to June 30, 2024.
Shareholder Report Annual or Semi-Annual	semi-annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at www.bostontrustwalden.com/investment-services/mutual-funds/
Additional Information Phone Number	1-800-282-8782 ext. 7050
Additional Information Website	www.bostontrustwalden.com/investment-services/mutual-funds/
Expenses [Text Block]	Fund Expenses What were the Fund costs for the last six months? (Based on a hypothetical $10,000 investment) Fund Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Boston Trust SMID Cap Fund $ 0.75 %
Expenses Paid, Amount	$ 38
Expense Ratio, Percent	0.75%
Net Assets	$ 775,537,514
Holdings Count \| Holding	75
Investment Company, Portfolio Turnover	18.90%
Additional Fund Statistics [Text Block]	Key Fund Statistics The following table outlines key Fund statistics that you should pay attention to. Fund net assets $ Total number of portfolio holdings 75 Portfolio turnover rate for the period 18.90 %
Holdings [Text Block]	Graphical Representation of Holdings The tables below show the investment makeup of the Fund, representing percentages of the total net assets of the Fund. TOP TEN HOLDINGS BJ's Wholesale Club Holdings, Inc. 2.5 % AptarGroup, Inc. 2.1 % Service Corp. International 2.1 % SEI Investments Co. 2.0 % Waters Corp. 2.0 % Donaldson Co., Inc. 1.9 % Nordson Corp. 1.8 % Charles River Laboratories International, Inc. 1.8 % Cooper (The) Cos., Inc. 1.8 % ExlService Holdings, Inc. 1.7 % Industry Sector Allocation
Largest Holdings [Text Block]	TOP TEN HOLDINGS BJ's Wholesale Club Holdings, Inc. 2.5 % AptarGroup, Inc. 2.1 % Service Corp. International 2.1 % SEI Investments Co. 2.0 % Waters Corp. 2.0 % Donaldson Co., Inc. 1.9 % Nordson Corp. 1.8 % Charles River Laboratories International, Inc. 1.8 % Cooper (The) Cos., Inc. 1.8 % ExlService Holdings, Inc. 1.7 %
Boston Trust Walden Balanced Fund
Shareholder Report [Line Items]
Fund Name	Boston Trust Walden Balanced Fund
Class Name	Boston Trust Walden Balanced Fund
Trading Symbol	WSBFX
Annual or Semi-Annual Statement [Text Block]	This semi-annual shareholder report contains important information about the Boston Trust Walden Balanced Fund (“Fund”) for the period of January 1, 2024, to June 30, 2024.
Shareholder Report Annual or Semi-Annual	semi-annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at www.bostontrustwalden.com/investment-services/mutual-funds/
Additional Information Phone Number	1-800-282-8782 ext. 7050
Additional Information Website	www.bostontrustwalden.com/investment-services/mutual-funds/
Expenses [Text Block]	Fund Expenses What were the Fund costs for the last six months? (Based on a hypothetical $10,000 investment) Fund Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Boston Trust Walden Balanced Fund $ 0.95 %
Expenses Paid, Amount	$ 48
Expense Ratio, Percent	0.95%
Net Assets	$ 161,470,343
Holdings Count \| Holding	92
Investment Company, Portfolio Turnover	2.67%
Additional Fund Statistics [Text Block]	Key Fund Statistics The following table outlines key Fund statistics that you should pay attention to. Fund net assets $ Total number of portfolio holdings 92 Portfolio turnover rate for the period 2.67 %
Holdings [Text Block]	Graphical Representation of Holdings The tables below show the investment makeup of the Fund, representing percentages of the total net assets of the Fund. TOP TEN HOLDINGS Microsoft Corp. 8.7 % U.S. Treasury Note 6.4 % U.S. Treasury Note 5.0 % Alphabet, Inc., Class C 4.8 % Apple, Inc. 4.7 % U.S. Treasury Bond 2.9 % Visa, Inc., Class A 2.7 % U.S. Treasury Inflation Indexed Note 2.6 % JPMorgan Chase & Co. 2.5 % ConocoPhillips 2.4 % Industry Sector Allocation
Largest Holdings [Text Block]	TOP TEN HOLDINGS Microsoft Corp. 8.7 % U.S. Treasury Note 6.4 % U.S. Treasury Note 5.0 % Alphabet, Inc., Class C 4.8 % Apple, Inc. 4.7 % U.S. Treasury Bond 2.9 % Visa, Inc., Class A 2.7 % U.S. Treasury Inflation Indexed Note 2.6 % JPMorgan Chase & Co. 2.5 % ConocoPhillips 2.4 %
Boston Trust Walden Equity Fund
Shareholder Report [Line Items]
Fund Name	Boston Trust Walden Equity Fund
Class Name	Boston Trust Walden Equity Fund
Trading Symbol	WSEFX
Annual or Semi-Annual Statement [Text Block]	This semi-annual shareholder report contains important information about the Boston Trust Walden Equity Fund (“Fund”) for the period of January 1, 2024, to June 30, 2024.
Shareholder Report Annual or Semi-Annual	semi-annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at www.bostontrustwalden.com/investment-services/mutual-funds/
Additional Information Phone Number	1-800-282-8782 ext. 7050
Additional Information Website	www.bostontrustwalden.com/investment-services/mutual-funds/
Expenses [Text Block]	Fund Expenses What were the Fund costs for the last six months? (Based on a hypothetical $10,000 investment) Fund Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Boston Trust Walden Equity Fund $ 1.00 %
Expenses Paid, Amount	$ 51
Expense Ratio, Percent	1%
Net Assets	$ 271,916,923
Holdings Count \| Holding	54
Investment Company, Portfolio Turnover	5.46%
Additional Fund Statistics [Text Block]	Key Fund Statistics The following table outlines key Fund statistics that you should pay attention to. Fund net assets $ Total number of portfolio holdings 54 Portfolio turnover rate for the period 5.46 %
Holdings [Text Block]	Graphical Representation of Holdings The tables below show the investment makeup of the Fund, representing percentages of the total net assets of the Fund. TOP TEN HOLDINGS Microsoft Corp. 9.5 % Apple, Inc. 8.2 % Alphabet, Inc., Class C 5.1 % ConocoPhillips 4.2 % JPMorgan Chase & Co. 3.8 % Alphabet, Inc., Class A 3.3 % Accenture PLC, Class A 3.1 % Visa, Inc., Class A 3.0 % Applied Materials, Inc. 2.9 % UnitedHealth Group, Inc. 2.8 % Industry Sector Allocation
Largest Holdings [Text Block]	TOP TEN HOLDINGS Microsoft Corp. 9.5 % Apple, Inc. 8.2 % Alphabet, Inc., Class C 5.1 % ConocoPhillips 4.2 % JPMorgan Chase & Co. 3.8 % Alphabet, Inc., Class A 3.3 % Accenture PLC, Class A 3.1 % Visa, Inc., Class A 3.0 % Applied Materials, Inc. 2.9 % UnitedHealth Group, Inc. 2.8 %
Boston Trust Walden Midcap Fund
Shareholder Report [Line Items]
Fund Name	Boston Trust Walden Midcap Fund
Class Name	Boston Trust Walden Midcap Fund
Trading Symbol	WAMFX
Annual or Semi-Annual Statement [Text Block]	This semi-annual shareholder report contains important information about the Boston Trust Walden Midcap Fund (“Fund”) for the period of January 1, 2024, to June 30, 2024.
Shareholder Report Annual or Semi-Annual	semi-annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at www.bostontrustwalden.com/investment-services/mutual-funds/
Additional Information Phone Number	1-800-282-8782 ext. 7050
Additional Information Website	www.bostontrustwalden.com/investment-services/mutual-funds/
Expenses [Text Block]	Fund Expenses What were the Fund costs for the last six months? (Based on a hypothetical $10,000 investment) Fund Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Boston Trust Walden Midcap Fund $ 1.00 %
Expenses Paid, Amount	$ 50
Expense Ratio, Percent	1%
Net Assets	$ 132,264,750
Holdings Count \| Holding	70
Investment Company, Portfolio Turnover	11.28%
Additional Fund Statistics [Text Block]	Key Fund Statistics The following table outlines key Fund statistics that you should pay attention to. Fund net assets $ Total number of portfolio holdings 70 Portfolio turnover rate for the period 11.28 %
Holdings [Text Block]	Graphical Representation of Holdings The tables below show the investment makeup of the Fund, representing percentages of the total net assets of the Fund. TOP TEN HOLDINGS Baker Hughes Co. 2.9 % Paychex, Inc. 2.8 % Teradyne, Inc. 2.5 % Williams-Sonoma, Inc. 2.0 % SEI Investments Co. 2.0 % Ross Stores, Inc. 2.0 % ANSYS, Inc. 1.9 % FactSet Research Systems, Inc. 1.9 % W.W. Grainger, Inc. 1.9 % BJ's Wholesale Club Holdings, Inc. 1.9 % Industry Sector Allocation
Largest Holdings [Text Block]	TOP TEN HOLDINGS Baker Hughes Co. 2.9 % Paychex, Inc. 2.8 % Teradyne, Inc. 2.5 % Williams-Sonoma, Inc. 2.0 % SEI Investments Co. 2.0 % Ross Stores, Inc. 2.0 % ANSYS, Inc. 1.9 % FactSet Research Systems, Inc. 1.9 % W.W. Grainger, Inc. 1.9 % BJ's Wholesale Club Holdings, Inc. 1.9 %
Boston Trust Walden SMID Cap Fund
Shareholder Report [Line Items]
Fund Name	Boston Trust Walden SMID Cap Fund
Class Name	Boston Trust Walden SMID Cap Fund
Trading Symbol	WASMX
Annual or Semi-Annual Statement [Text Block]	This semi-annual shareholder report contains important information about the Boston Trust Walden SMID Cap Fund (“Fund”) for the period of January 1, 2024, to June 30, 2024.
Shareholder Report Annual or Semi-Annual	semi-annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at www.bostontrustwalden.com/investment-services/mutual-funds/
Additional Information Phone Number	1-800-282-8782 ext. 7050
Additional Information Website	www.bostontrustwalden.com/investment-services/mutual-funds/
Expenses [Text Block]	Fund Expenses What were the Fund costs for the last six months? (Based on a hypothetical $10,000 investment) Fund Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Boston Trust Walden SMID Cap Fund $ 1.00 %
Expenses Paid, Amount	$ 50
Expense Ratio, Percent	1%
Net Assets	$ 253,431,245
Holdings Count \| Holding	70
Investment Company, Portfolio Turnover	10.41%
Additional Fund Statistics [Text Block]	Key Fund Statistics The following table outlines key Fund statistics that you should pay attention to. Fund net assets $ Total number of portfolio holdings 70 Portfolio turnover rate for the period 10.41 %
Holdings [Text Block]	Graphical Representation of Holdings The tables below show the investment makeup of the Fund, representing percentages of the total net assets of the Fund. TOP TEN HOLDINGS BJ's Wholesale Club Holdings, Inc. 2.5 % Applied Industrial Technologies, Inc. 2.5 % TopBuild Corp. 2.2 % Waters Corp. 2.2 % IDEX Corp. 2.1 % A O Smith Corp. 2.1 % AptarGroup, Inc. 2.0 % SEI Investments Co. 2.0 % Donaldson Co., Inc. 1.9 % Hubbell, Inc. 1.9 % Industry Sector Allocation
Largest Holdings [Text Block]	TOP TEN HOLDINGS BJ's Wholesale Club Holdings, Inc. 2.5 % Applied Industrial Technologies, Inc. 2.5 % TopBuild Corp. 2.2 % Waters Corp. 2.2 % IDEX Corp. 2.1 % A O Smith Corp. 2.1 % AptarGroup, Inc. 2.0 % SEI Investments Co. 2.0 % Donaldson Co., Inc. 1.9 % Hubbell, Inc. 1.9 %
Boston Trust Walden Small Cap Fund
Shareholder Report [Line Items]
Fund Name	Boston Trust Walden Small Cap Fund
Class Name	Boston Trust Walden Small Cap Fund
Trading Symbol	BOSOX
Annual or Semi-Annual Statement [Text Block]	This semi-annual shareholder report contains important information about the Boston Trust Walden Small Cap Fund (“Fund”) for the period of January 1, 2024, to June 30, 2024.
Shareholder Report Annual or Semi-Annual	semi-annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at www.bostontrustwalden.com/investment-services/mutual-funds/
Additional Information Phone Number	1-800-282-8782 ext. 7050
Additional Information Website	www.bostontrustwalden.com/investment-services/mutual-funds/
Expenses [Text Block]	Fund Expenses What were the Fund costs for the last six months? (Based on a hypothetical $10,000 investment) Fund Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Boston Trust Walden Small Cap Fund $ 1.00 %
Expenses Paid, Amount	$ 50
Expense Ratio, Percent	1%
Net Assets	$ 1,314,126,554
Holdings Count \| Holding	70
Investment Company, Portfolio Turnover	14.74%
Additional Fund Statistics [Text Block]	Key Fund Statistics The following table outlines key Fund statistics that you should pay attention to. Fund net assets $ Total number of portfolio holdings 70 Portfolio turnover rate for the period 14.74 %
Holdings [Text Block]	Graphical Representation of Holdings The tables below show the investment makeup of the Fund, representing percentages of the total net assets of the Fund. TOP TEN HOLDINGS Sprouts Farmers Market, Inc. 2.7 % Littelfuse, Inc. 2.5 % Applied Industrial Technologies, Inc. 2.3 % InterDigital, Inc. 2.3 % Cactus, Inc., Class A 2.1 % Donaldson Co., Inc. 2.1 % Progress Software Corp. 2.1 % Jones Lang LaSalle, Inc. 2.1 % AptarGroup, Inc. 2.1 % Chemed Corp. 2.0 % Industry Sector Allocation
Largest Holdings [Text Block]	TOP TEN HOLDINGS Sprouts Farmers Market, Inc. 2.7 % Littelfuse, Inc. 2.5 % Applied Industrial Technologies, Inc. 2.3 % InterDigital, Inc. 2.3 % Cactus, Inc., Class A 2.1 % Donaldson Co., Inc. 2.1 % Progress Software Corp. 2.1 % Jones Lang LaSalle, Inc. 2.1 % AptarGroup, Inc. 2.1 % Chemed Corp. 2.0 %
Boston Trust Walden International Equity Fund
Shareholder Report [Line Items]
Fund Name	Boston Trust Walden International Equity Fund
Class Name	Boston Trust Walden International Equity Fund
Trading Symbol	WIEFX
Annual or Semi-Annual Statement [Text Block]	This semi-annual shareholder report contains important information about the Boston Trust Walden International Equity Fund (“Fund”) for the period of January 1, 2024, to June 30, 2024.
Shareholder Report Annual or Semi-Annual	semi-annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at www.bostontrustwalden.com/investment-services/mutual-funds/
Additional Information Phone Number	1-800-282-8782 ext. 7050
Additional Information Website	www.bostontrustwalden.com/investment-services/mutual-funds/
Expenses [Text Block]	Fund Expenses What were the Fund costs for the last six months? (Based on a hypothetical $10,000 investment) Fund Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Boston Trust Walden International Equity Fund $ 0.92 %
Expenses Paid, Amount	$ 47
Expense Ratio, Percent	0.92%
Net Assets	$ 163,120,178
Holdings Count \| Holding	75
Investment Company, Portfolio Turnover	4.24%
Additional Fund Statistics [Text Block]	Key Fund Statistics The following table outlines key Fund statistics that you should pay attention to. Fund net assets $ Total number of portfolio holdings 75 Portfolio turnover rate for the period 4.24 %
Holdings [Text Block]	Graphical Representation of Holdings The tables below show the investment makeup of the Fund, representing percentages of the total net assets of the Fund. TOP TEN HOLDINGS Nestle SA (Registered) 3.1 % Toyota Motor Corp. 2.8 % Novo Nordisk A/S, Class B 2.6 % Roche Holding AG 2.6 % Unilever PLC 2.5 % Royal Bank of Canada 2.4 % Schneider Electric SE 2.4 % ASML Holding NV 2.3 % Insurance Australia Group Ltd. 2.2 % RELX PLC (London Exchange) 2.1 % Industry Sector Allocation
Largest Holdings [Text Block]	TOP TEN HOLDINGS Nestle SA (Registered) 3.1 % Toyota Motor Corp. 2.8 % Novo Nordisk A/S, Class B 2.6 % Roche Holding AG 2.6 % Unilever PLC 2.5 % Royal Bank of Canada 2.4 % Schneider Electric SE 2.4 % ASML Holding NV 2.3 % Insurance Australia Group Ltd. 2.2 % RELX PLC (London Exchange) 2.1 %

Shareholder Report, Holdings (D

Shareholder Report, Holdings (Details)	Jun. 30, 2024
Boston Trust Walden International Equity Fund \| Nestle SA (Registered) [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.10%
Boston Trust Walden International Equity Fund \| Toyota Motor Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.80%
Boston Trust Walden International Equity Fund \| Novo Nordisk A/S, Class B [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Boston Trust Walden International Equity Fund \| Roche Holding AG [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Boston Trust Walden International Equity Fund \| Unilever PLC [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Boston Trust Walden International Equity Fund \| Royal Bank of Canada [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Boston Trust Walden International Equity Fund \| Schneider Electric SE [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Boston Trust Walden International Equity Fund \| ASML Holding NV [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Boston Trust Walden International Equity Fund \| Insurance Australia Group Ltd. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.20%
Boston Trust Walden International Equity Fund \| RELX PLC (London Exchange) [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Boston Trust Walden International Equity Fund \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	21%
Boston Trust Walden International Equity Fund \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	16.70%
Boston Trust Walden International Equity Fund \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	12%
Boston Trust Walden International Equity Fund \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.70%
Boston Trust Walden International Equity Fund \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	9.40%
Boston Trust Walden International Equity Fund \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	7.90%
Boston Trust Walden International Equity Fund \| Materials Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	7.10%
Boston Trust Walden International Equity Fund \| Energy Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	5.60%
Boston Trust Walden International Equity Fund \| Communications Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Boston Trust Walden International Equity Fund \| Utilities Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Boston Trust Walden International Equity Fund \| Real Estate Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%
Boston Trust Walden International Equity Fund \| Investment Companies [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Boston Trust Walden Small Cap Fund \| Sprouts Farmers Market, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.70%
Boston Trust Walden Small Cap Fund \| Littelfuse, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Boston Trust Walden Small Cap Fund \| Applied Industrial Technologies, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Boston Trust Walden Small Cap Fund \| InterDigital, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Boston Trust Walden Small Cap Fund \| Cactus, Inc., Class A [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Boston Trust Walden Small Cap Fund \| Donaldson Co., Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Boston Trust Walden Small Cap Fund \| Progress Software Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Boston Trust Walden Small Cap Fund \| Jones Lang LaSalle, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Boston Trust Walden Small Cap Fund \| AptarGroup, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Boston Trust Walden Small Cap Fund \| Chemed Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%
Boston Trust Walden Small Cap Fund \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	14.50%
Boston Trust Walden Small Cap Fund \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	18.60%
Boston Trust Walden Small Cap Fund \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13.70%
Boston Trust Walden Small Cap Fund \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	8.80%
Boston Trust Walden Small Cap Fund \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	15.10%
Boston Trust Walden Small Cap Fund \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	7.10%
Boston Trust Walden Small Cap Fund \| Materials Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	6.80%
Boston Trust Walden Small Cap Fund \| Energy Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	4.60%
Boston Trust Walden Small Cap Fund \| Communications Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.40%
Boston Trust Walden Small Cap Fund \| Utilities Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Boston Trust Walden Small Cap Fund \| Real Estate Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	5%
Boston Trust Walden Small Cap Fund \| Investment Companies [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Boston Trust Walden SMID Cap Fund \| Applied Industrial Technologies, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Boston Trust Walden SMID Cap Fund \| Donaldson Co., Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Boston Trust Walden SMID Cap Fund \| AptarGroup, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%
Boston Trust Walden SMID Cap Fund \| BJ's Wholesale Club Holdings, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Boston Trust Walden SMID Cap Fund \| TopBuild Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.20%
Boston Trust Walden SMID Cap Fund \| Waters Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.20%
Boston Trust Walden SMID Cap Fund \| IDEX Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Boston Trust Walden SMID Cap Fund \| A O Smith Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Boston Trust Walden SMID Cap Fund \| SEI Investments Co. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%
Boston Trust Walden SMID Cap Fund \| Hubbell, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Boston Trust Walden SMID Cap Fund \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	16%
Boston Trust Walden SMID Cap Fund \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	27.50%
Boston Trust Walden SMID Cap Fund \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	9.10%
Boston Trust Walden SMID Cap Fund \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	9.80%
Boston Trust Walden SMID Cap Fund \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	16.90%
Boston Trust Walden SMID Cap Fund \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	5.20%
Boston Trust Walden SMID Cap Fund \| Materials Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	6.60%
Boston Trust Walden SMID Cap Fund \| Communications Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.20%
Boston Trust Walden SMID Cap Fund \| Real Estate Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	6.60%
Boston Trust Walden SMID Cap Fund \| Investment Companies [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.10%
Boston Trust Walden Midcap Fund \| BJ's Wholesale Club Holdings, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Boston Trust Walden Midcap Fund \| SEI Investments Co. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%
Boston Trust Walden Midcap Fund \| Baker Hughes Co. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.90%
Boston Trust Walden Midcap Fund \| Paychex, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.80%
Boston Trust Walden Midcap Fund \| Teradyne, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Boston Trust Walden Midcap Fund \| Williams-Sonoma, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%
Boston Trust Walden Midcap Fund \| Ross Stores, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%
Boston Trust Walden Midcap Fund \| ANSYS, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Boston Trust Walden Midcap Fund \| FactSet Research Systems, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Boston Trust Walden Midcap Fund \| W.W. Grainger, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Boston Trust Walden Midcap Fund \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	14.80%
Boston Trust Walden Midcap Fund \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	20.20%
Boston Trust Walden Midcap Fund \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	11.60%
Boston Trust Walden Midcap Fund \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	11%
Boston Trust Walden Midcap Fund \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	12.20%
Boston Trust Walden Midcap Fund \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	7.30%
Boston Trust Walden Midcap Fund \| Materials Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	6.40%
Boston Trust Walden Midcap Fund \| Energy Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.90%
Boston Trust Walden Midcap Fund \| Communications Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Boston Trust Walden Midcap Fund \| Utilities Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	5.70%
Boston Trust Walden Midcap Fund \| Real Estate Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	4%
Boston Trust Walden Midcap Fund \| Investment Companies [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.40%
Boston Trust Walden Equity Fund \| Microsoft Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	9.50%
Boston Trust Walden Equity Fund \| Apple, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	8.20%
Boston Trust Walden Equity Fund \| Alphabet, Inc., Class C [Member]
Holdings [Line Items]
Percent of Net Asset Value	5.10%
Boston Trust Walden Equity Fund \| ConocoPhillips [Member]
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Boston Trust Walden Equity Fund \| JPMorgan Chase & Co. [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Boston Trust Walden Equity Fund \| Alphabet, Inc., Class A [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Boston Trust Walden Equity Fund \| Accenture PLC, Class A [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.10%
Boston Trust Walden Equity Fund \| Visa, Inc., Class A [Member]
Holdings [Line Items]
Percent of Net Asset Value	3%
Boston Trust Walden Equity Fund \| Applied Materials, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.90%
Boston Trust Walden Equity Fund \| UnitedHealth Group, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.80%
Boston Trust Walden Equity Fund \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13.10%
Boston Trust Walden Equity Fund \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	9.90%
Boston Trust Walden Equity Fund \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13.80%
Boston Trust Walden Equity Fund \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	7.90%
Boston Trust Walden Equity Fund \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	32.80%
Boston Trust Walden Equity Fund \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	4.30%
Boston Trust Walden Equity Fund \| Materials Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Boston Trust Walden Equity Fund \| Energy Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Boston Trust Walden Equity Fund \| Communications Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.20%
Boston Trust Walden Equity Fund \| Utilities Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.80%
Boston Trust Walden Equity Fund \| Investment Companies [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Boston Trust Walden Balanced Fund
Holdings [Line Items]
Percent of Net Asset Value	5%
Boston Trust Walden Balanced Fund \| Microsoft Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	8.70%
Boston Trust Walden Balanced Fund \| Apple, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	4.70%
Boston Trust Walden Balanced Fund \| Alphabet, Inc., Class C [Member]
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Boston Trust Walden Balanced Fund \| ConocoPhillips [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Boston Trust Walden Balanced Fund \| JPMorgan Chase & Co. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Boston Trust Walden Balanced Fund \| Visa, Inc., Class A [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.70%
Boston Trust Walden Balanced Fund \| U.S. Treasury Note [Member]
Holdings [Line Items]
Percent of Net Asset Value	6.40%
Boston Trust Walden Balanced Fund \| U.S. Treasury Bond [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.90%
Boston Trust Walden Balanced Fund \| U.S. Treasury Inflation Indexed Note [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Boston Trust Walden Balanced Fund \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10%
Boston Trust Walden Balanced Fund \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	7.40%
Boston Trust Walden Balanced Fund \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	12%
Boston Trust Walden Balanced Fund \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	6.60%
Boston Trust Walden Balanced Fund \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	23.30%
Boston Trust Walden Balanced Fund \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	4.60%
Boston Trust Walden Balanced Fund \| Materials Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Boston Trust Walden Balanced Fund \| Energy Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Boston Trust Walden Balanced Fund \| Communications Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	8.80%
Boston Trust Walden Balanced Fund \| Utilities Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.10%
Boston Trust Walden Balanced Fund \| Investment Companies [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.60%
Boston Trust Walden Balanced Fund \| U.S. Government U.S. Government Agency Obligations [Member]
Holdings [Line Items]
Percent of Net Asset Value	20%
Boston Trust Walden Balanced Fund \| Municipal Bonds 1 [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.40%
Boston Trust SMID Cap Fund \| Donaldson Co., Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Boston Trust SMID Cap Fund \| AptarGroup, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Boston Trust SMID Cap Fund \| BJ's Wholesale Club Holdings, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Boston Trust SMID Cap Fund \| Waters Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%
Boston Trust SMID Cap Fund \| SEI Investments Co. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%
Boston Trust SMID Cap Fund \| Service Corp. International [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Boston Trust SMID Cap Fund \| Nordson Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.80%
Boston Trust SMID Cap Fund \| Charles River Laboratories International, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.80%
Boston Trust SMID Cap Fund \| Cooper (The) Cos., Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.80%
Boston Trust SMID Cap Fund \| ExlService Holdings, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Boston Trust SMID Cap Fund \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	15.70%
Boston Trust SMID Cap Fund \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	20.80%
Boston Trust SMID Cap Fund \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.90%
Boston Trust SMID Cap Fund \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	11%
Boston Trust SMID Cap Fund \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	14.80%
Boston Trust SMID Cap Fund \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Boston Trust SMID Cap Fund \| Materials Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	6.80%
Boston Trust SMID Cap Fund \| Energy Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	4.10%
Boston Trust SMID Cap Fund \| Communications Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.20%
Boston Trust SMID Cap Fund \| Utilities Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.20%
Boston Trust SMID Cap Fund \| Real Estate Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	6%
Boston Trust SMID Cap Fund \| Investment Companies [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Boston Trust Midcap Fund \| SEI Investments Co. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%
Boston Trust Midcap Fund \| Baker Hughes Co. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%
Boston Trust Midcap Fund \| Paychex, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.70%
Boston Trust Midcap Fund \| Teradyne, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Boston Trust Midcap Fund \| Williams-Sonoma, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%
Boston Trust Midcap Fund \| Ross Stores, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%
Boston Trust Midcap Fund \| ANSYS, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Boston Trust Midcap Fund \| Cooper (The) Cos., Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Boston Trust Midcap Fund \| Marathon Oil Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.20%
Boston Trust Midcap Fund \| TE Connectivity Ltd. [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.80%
Boston Trust Midcap Fund \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	14.90%
Boston Trust Midcap Fund \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	18.70%
Boston Trust Midcap Fund \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	11.40%
Boston Trust Midcap Fund \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	11.10%
Boston Trust Midcap Fund \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	12%
Boston Trust Midcap Fund \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	7%
Boston Trust Midcap Fund \| Materials Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	6.50%
Boston Trust Midcap Fund \| Energy Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Boston Trust Midcap Fund \| Communications Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Boston Trust Midcap Fund \| Utilities Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	6.30%
Boston Trust Midcap Fund \| Real Estate Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	4.10%
Boston Trust Midcap Fund \| Investment Companies [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.30%
Boston Trust Equity Fund \| W.W. Grainger, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Boston Trust Equity Fund \| Microsoft Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	9.50%
Boston Trust Equity Fund \| Apple, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	7.10%
Boston Trust Equity Fund \| Alphabet, Inc., Class C [Member]
Holdings [Line Items]
Percent of Net Asset Value	7.70%
Boston Trust Equity Fund \| JPMorgan Chase & Co. [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.60%
Boston Trust Equity Fund \| Accenture PLC, Class A [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.20%
Boston Trust Equity Fund \| Visa, Inc., Class A [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.10%
Boston Trust Equity Fund \| Costco Wholesale Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	4.30%
Boston Trust Equity Fund \| Exxon Mobil Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Boston Trust Equity Fund \| Oracle Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Boston Trust Equity Fund \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	14.20%
Boston Trust Equity Fund \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	11.30%
Boston Trust Equity Fund \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	14.40%
Boston Trust Equity Fund \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	6.10%
Boston Trust Equity Fund \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	25.80%
Boston Trust Equity Fund \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	8.60%
Boston Trust Equity Fund \| Materials Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Boston Trust Equity Fund \| Energy Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	4.60%
Boston Trust Equity Fund \| Communications Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.70%
Boston Trust Equity Fund \| Utilities Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	1%
Boston Trust Equity Fund \| Investment Companies [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.90%
Boston Trust Asset Management Fund \| Microsoft Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	7.60%
Boston Trust Asset Management Fund \| Apple, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	5.20%
Boston Trust Asset Management Fund \| Alphabet, Inc., Class C [Member]
Holdings [Line Items]
Percent of Net Asset Value	6.90%
Boston Trust Asset Management Fund \| JPMorgan Chase & Co. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.70%
Boston Trust Asset Management Fund \| Accenture PLC, Class A [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.20%
Boston Trust Asset Management Fund \| Visa, Inc., Class A [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Boston Trust Asset Management Fund \| U.S. Treasury Note [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Boston Trust Asset Management Fund \| U.S. Treasury Bond [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.70%
Boston Trust Asset Management Fund \| Costco Wholesale Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.10%
Boston Trust Asset Management Fund \| Automatic Data Processing, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.70%
Boston Trust Asset Management Fund \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13.50%
Boston Trust Asset Management Fund \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	9.30%
Boston Trust Asset Management Fund \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.10%
Boston Trust Asset Management Fund \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Boston Trust Asset Management Fund \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	20.10%
Boston Trust Asset Management Fund \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	6.50%
Boston Trust Asset Management Fund \| Materials Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%
Boston Trust Asset Management Fund \| Energy Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Boston Trust Asset Management Fund \| Communications Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	9.60%
Boston Trust Asset Management Fund \| Utilities Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.60%
Boston Trust Asset Management Fund \| Investment Companies [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Boston Trust Asset Management Fund \| U.S. Government U.S. Government Agency Obligations [Member]
Holdings [Line Items]
Percent of Net Asset Value	17.80%