N-2 |
Jun. 23, 2026
shares
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| Cover [Abstract] | ||||||||||||||||||||||
| Entity Central Index Key | 0001340736 | |||||||||||||||||||||
| Amendment Flag | false | |||||||||||||||||||||
| Document Type | DEF 14A | |||||||||||||||||||||
| Entity Registrant Name | Eaton Vance Tax-Managed Diversified Equity Income Fund | |||||||||||||||||||||
| Capital Stock, Long-Term Debt, and Other Securities [Abstract] | ||||||||||||||||||||||
| Outstanding Securities [Table Text Block] |
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| Common Shares Tax-Managed Diversified Equity Income Fund [Member] | ||||||||||||||||||||||
| Capital Stock, Long-Term Debt, and Other Securities [Abstract] | ||||||||||||||||||||||
| Outstanding Security, Title [Text Block] | Tax-Managed Diversified Equity Income Fund | |||||||||||||||||||||
| Outstanding Security, Authorized [Shares] | 159,280,608 |