| Form N-CSR Cover | 6 Months Ended |
| Aug. 31, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSRS |
| Amendment Flag | false |
| Registrant Name | T. ROWE PRICE TAX-EFFICIENT FUNDS, INC. |
| Entity Central Index Key | 0001038490 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Aug. 31, 2024 |
| Shareholder Report | 6 Months Ended |
| Aug. 31, 2024 USD ($) Holding | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSRS |
| Amendment Flag | false |
| Registrant Name | T. ROWE PRICE TAX-EFFICIENT FUNDS, INC. |
| Entity Central Index Key | 0001038490 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Aug. 31, 2024 |
| C000005556 | |
| Shareholder Report [Line Items] | |
| Fund Name | Tax-Efficient Equity Fund |
| Class Name | Investor Class |
| Trading Symbol | PREFX |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find the fund’s prospectus, financial information on Form N‑CSR (which includes required tax information for dividends), holdings, proxy voting information, and other information at www.troweprice.com/prospectus info troweprice.com |
| Material Fund Change Notice [Text Block] | |
| Additional Information Phone Number | 1‑800‑638‑5660 |
| Additional Information Email | info@troweprice.com</span>" id="sjs-B19"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 17.3333px; margin: 0px; overflow: visible; text-align: justify;">info@troweprice.com</span> |
| Additional Information Website | www.troweprice.com/prospectus |
| Expenses [Text Block] | What were the fund costs for the last six months? Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Tax-Efficient Equity Fund - Investor Class $43 0.82% |
| Expenses Paid, Amount | $ 43 |
| Expense Ratio, Percent | 0.82% |
| AssetsNet | $ 1,136,291,000 |
| Holdings Count | Holding | 370 |
| InvestmentCompanyPortfolioTurnover | 4.20% |
| Additional Fund Statistics [Text Block] | What are some fund statistics? Fund Statistics Total Net Assets (000s) $1,136,291 Number of Portfolio Holdings 370 |
| Holdings [Text Block] | Sector Allocation Information Technology 46.3 % Consumer Discretionary 13.0 Communication Services 12.6 Health Care 8.8 Financials 7.7 Industrials & Business Services 6.8 Consumer Staples 2.5 Materials 1.1 Energy 0.5 Other 0.7 |
| Material Fund Change [Text Block] | |
| Updated Prospectus Web Address | www.troweprice.com/paperless |
| C000193192 | |
| Shareholder Report [Line Items] | |
| Fund Name | Tax-Efficient Equity Fund |
| Class Name | I Class |
| Trading Symbol | TEEFX |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find the fund’s prospectus, financial information on Form N‑CSR (which includes required tax information for dividends), holdings, proxy voting information, and other information at www.troweprice.com/prospectus info troweprice.com |
| Material Fund Change Notice [Text Block] | |
| Additional Information Phone Number | 1‑800‑638‑5660 |
| Additional Information Email | info@troweprice.com</span>" id="sjs-B40"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 17.3333px; margin: 0px; overflow: visible; text-align: justify;">info@troweprice.com</span> |
| Additional Information Website | www.troweprice.com/prospectus |
| Expenses [Text Block] | What were the fund costs for the last six months? Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Tax-Efficient Equity Fund - I Class $36 0.68% |
| Expenses Paid, Amount | $ 36 |
| Expense Ratio, Percent | 0.68% |
| AssetsNet | $ 1,136,291,000 |
| Holdings Count | Holding | 370 |
| InvestmentCompanyPortfolioTurnover | 4.20% |
| Additional Fund Statistics [Text Block] | What are some fund statistics? Fund Statistics Total Net Assets (000s) $1,136,291 Number of Portfolio Holdings 370 |
| Holdings [Text Block] | Sector Allocation Information Technology 46.3 % Consumer Discretionary 13.0 Communication Services 12.6 Health Care 8.8 Financials 7.7 Industrials & Business Services 6.8 Consumer Staples 2.5 Materials 1.1 Energy 0.5 Other 0.7 |
| Material Fund Change [Text Block] | |
| Updated Prospectus Web Address | www.troweprice.com/paperless |
| Shareholder Report, Holdings (Details) | Aug. 31, 2024 |
| C000005556 | NVIDIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.10% |
| C000005556 | Microsoft | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.30% |
| C000005556 | Apple | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.20% |
| C000005556 | Alphabet | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.50% |
| C000005556 | Meta Platforms | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| C000005556 | Amazon.com | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| C000005556 | Eli Lilly | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.70% |
| C000005556 | Broadcom | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.40% |
| C000005556 | Visa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| C000005556 | Mastercard | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000005556 | Information Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 46.30% |
| C000005556 | Consumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13% |
| C000005556 | Communication Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.60% |
| C000005556 | Health Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.80% |
| C000005556 | Financials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.70% |
| C000005556 | Industrials & Business Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.80% |
| C000005556 | Consumer Staples | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.50% |
| C000005556 | Materials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000005556 | Energy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000005556 | Other Holdings Grouping | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000193192 | NVIDIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.10% |
| C000193192 | Microsoft | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.30% |
| C000193192 | Apple | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.20% |
| C000193192 | Alphabet | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.50% |
| C000193192 | Meta Platforms | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| C000193192 | Amazon.com | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| C000193192 | Eli Lilly | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.70% |
| C000193192 | Broadcom | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.40% |
| C000193192 | Visa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| C000193192 | Mastercard | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000193192 | Information Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 46.30% |
| C000193192 | Consumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13% |
| C000193192 | Communication Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.60% |
| C000193192 | Health Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.80% |
| C000193192 | Financials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.70% |
| C000193192 | Industrials & Business Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.80% |
| C000193192 | Consumer Staples | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.50% |
| C000193192 | Materials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000193192 | Energy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000193192 | Other Holdings Grouping | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
