| Form N-CSR Cover | 6 Months Ended |
| May 31, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSRS |
| Amendment Flag | false |
| Registrant Name | Eaton Vance Growth Trust |
| Entity Central Index Key | 0000102816 |
| Document Period End Date | May 31, 2024 |
| Shareholder Report | 6 Months Ended |
| May 31, 2024 USD ($) Holding | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSRS |
| Amendment Flag | false |
| Registrant Name | Eaton Vance Growth Trust |
| Entity Central Index Key | 0000102816 |
| Document Period End Date | May 31, 2024 |
| C000163811 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Eaton Vance International Small‑Cap Fund |
| Class Name | Class A |
| Trading Symbol | EILAX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the Eaton Vance International Small‑Cap Fund for the period of December 1, 2023 to May 31, 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.eatonvance.com/open‑end‑mutual‑fund‑documents.php. You can also request this information by contacting us at 1‑800‑262‑1122. |
| Additional Information Phone Number | 1‑800‑262‑1122 |
| Additional Information Website | www.eatonvance.com/open‑end‑mutual‑fund‑documents.php |
| Expenses [Text Block] | What were the Fund costs for the last six months? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class A $67 1.30% |
| Expenses Paid, Amount | $ 67 |
| Expense Ratio, Percent | 1.30% |
| Net Assets | $ 56,022,012 |
| Holdings Count | Holding | 103 |
| Investment Company Portfolio Turnover | 25% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Total Net Assets $ 56,022,012 # of Portfolio Holdings 103 Portfolio Turnover Rate 25% |
| Holdings [Text Block] | What did the Fund invest in? The following tables reflect what the Fund invested in as of the report date. Geographic Allocation (% of total investments) Top Ten Holdings (% of total investments) 1 Diploma PLC 2.0% IPSOS SA 1.8% Sdiptech AB, Class B 1.8% Chiba Bank Ltd. 1.7% Cranswick PLC 1.6% Greggs PLC 1.6% JTC PLC 1.5% CAR Group Ltd. 1.5% Fukuoka Financial Group, Inc. 1.5% Games Workshop Group PLC 1.5% Total 16.5% 1 Excluding cash equivalents |
| Largest Holdings [Text Block] | Top Ten Holdings (% of total investments) 1 Diploma PLC 2.0% IPSOS SA 1.8% Sdiptech AB, Class B 1.8% Chiba Bank Ltd. 1.7% Cranswick PLC 1.6% Greggs PLC 1.6% JTC PLC 1.5% CAR Group Ltd. 1.5% Fukuoka Financial Group, Inc. 1.5% Games Workshop Group PLC 1.5% Total 16.5% 1 Excluding cash equivalents |
| C000163813 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Eaton Vance International Small‑Cap Fund |
| Class Name | Class I |
| Trading Symbol | EILIX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the Eaton Vance International Small‑Cap Fund for the period of December 1, 2023 to May 31, 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.eatonvance.com/open‑end‑mutual‑fund‑documents.php. You can also request this information by contacting us at 1‑800‑262‑1122. |
| Additional Information Phone Number | 1‑800‑262‑1122 |
| Additional Information Website | www.eatonvance.com/open‑end‑mutual‑fund‑documents.php |
| Expenses [Text Block] | What were the Fund costs for the last six months? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I $54 1.05% |
| Expenses Paid, Amount | $ 54 |
| Expense Ratio, Percent | 1.05% |
| Net Assets | $ 56,022,012 |
| Holdings Count | Holding | 103 |
| Investment Company Portfolio Turnover | 25% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Total Net Assets $ 56,022,012 # of Portfolio Holdings 103 Portfolio Turnover Rate 25% |
| Holdings [Text Block] | What did the Fund invest in? The following tables reflect what the Fund invested in as of the report date. Geographic Allocation (% of total investments) Top Ten Holdings (% of total investments) 1 Diploma PLC 2.0% IPSOS SA 1.8% Sdiptech AB, Class B 1.8% Chiba Bank Ltd. 1.7% Cranswick PLC 1.6% Greggs PLC 1.6% JTC PLC 1.5% CAR Group Ltd. 1.5% Fukuoka Financial Group, Inc. 1.5% Games Workshop Group PLC 1.5% Total 16.5% 1 Excluding cash equivalents |
| Largest Holdings [Text Block] | Top Ten Holdings (% of total investments) 1 Diploma PLC 2.0% IPSOS SA 1.8% Sdiptech AB, Class B 1.8% Chiba Bank Ltd. 1.7% Cranswick PLC 1.6% Greggs PLC 1.6% JTC PLC 1.5% CAR Group Ltd. 1.5% Fukuoka Financial Group, Inc. 1.5% Games Workshop Group PLC 1.5% Total 16.5% 1 Excluding cash equivalents |
| Shareholder Report, Holdings (Details) | May 31, 2024 | |
| C000163811 [Member] | Diploma PLC [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 2% | [1] |
| C000163811 [Member] | Greggs PLC [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 1.60% | [1] |
| C000163811 [Member] | Sdiptech AB Class B [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 1.80% | [1] |
| C000163811 [Member] | CAR Group Ltd [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 1.50% | [1] |
| C000163811 [Member] | Fukuoka Financial Group Inc [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 1.50% | [1] |
| C000163811 [Member] | Cranswick PLC [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 1.60% | [1] |
| C000163811 [Member] | IPSOS SA [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 1.80% | [1] |
| C000163811 [Member] | Chiba Bank Ltd [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 1.70% | [1] |
| C000163811 [Member] | Games Workshop Group PLC [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 1.50% | [1] |
| C000163811 [Member] | JTC PLC [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 1.50% | [1] |
| C000163811 [Member] | Asia [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 28.20% | |
| C000163811 [Member] | Europe [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 51.60% | |
| C000163811 [Member] | North America [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 10.40% | |
| C000163811 [Member] | Asia Pacific [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 9.80% | |
| C000163813 [Member] | Diploma PLC [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 2% | [2] |
| C000163813 [Member] | Greggs PLC [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 1.60% | [2] |
| C000163813 [Member] | Sdiptech AB Class B [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 1.80% | [2] |
| C000163813 [Member] | CAR Group Ltd [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 1.50% | [2] |
| C000163813 [Member] | Fukuoka Financial Group Inc [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 1.50% | [2] |
| C000163813 [Member] | Cranswick PLC [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 1.60% | [2] |
| C000163813 [Member] | IPSOS SA [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 1.80% | [2] |
| C000163813 [Member] | Chiba Bank Ltd [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 1.70% | [2] |
| C000163813 [Member] | Games Workshop Group PLC [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 1.50% | [2] |
| C000163813 [Member] | JTC PLC [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 1.50% | [2] |
| C000163813 [Member] | Asia [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 28.20% | |
| C000163813 [Member] | Europe [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 51.60% | |
| C000163813 [Member] | North America [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 10.40% | |
| C000163813 [Member] | Asia Pacific [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 9.80% | |
| [1]Excluding cash equivalents[2]Excluding cash equivalents | ||
