Risk/Return Detail Data - FidelityAdvisorDiversifiedStockFund-OPRO - USD ($)			12 Months Ended											60 Months Ended	120 Months Ended
		Nov. 29, 2025	Nov. 29, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Nov. 29, 2025	Nov. 29, 2025
FidelityAdvisorCapitalDevelopmentFund-OPRO | Fidelity Advisor Capital Development Fund | Fidelity Advisor Capital Development Fund - Class O
Prospectus Line Items
Management Fees (as a percentage of Assets)		0.52%
Distribution and Service (12b-1) Fees		0.00%
Other Expenses (as a percentage of Assets):		0.01%
Expenses (as a percentage of Assets)		0.53%
Expense Example, with Redemption, 1 Year		$ 54
Expense Example, with Redemption, 3 Years		170
Expense Example, with Redemption, 5 Years		296
Expense Example, with Redemption, 10 Years		$ 665
Average Annual Return, Label [Optional Text]			Return Before Taxes
Average Annual Return, Percent			26.93%											14.71%	12.28%
Annual Return [Percent]				26.93%	24.20%	(7.96%)	25.41%	9.14%	31.34%	(8.82%)	18.12%	16.51%	(2.69%)
FidelityAdvisorCapitalDevelopmentFund-OPRO | Fidelity Advisor Capital Development Fund
Prospectus Line Items
Risk/Return [Heading]		Fund Summary Fund /Class: Fidelity Advisor® Capital Development Fund /O
Objective [Heading]		Investment Objective
Objective, Primary [Text Block]		Fidelity Advisor® Capital Development Fund seeks capital growth.
Expense Heading [Optional Text]		Fee Table
Expense Narrative [Text Block]		The following table describes the fees and expenses that may be incurred when you buy, hold, and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below.
Shareholder Fees Caption [Optional Text]		Shareholder fees
Shareholder Fee, Other		$ 0
Operating Expenses Caption [Optional Text]		Annual Operating Expenses
Portfolio Turnover [Heading]		Portfolio Turnover
Portfolio Turnover [Text Block]		The fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual operating expenses or in the example, affect the fund's performance. During the most recent fiscal year, the fund's portfolio turnover rate was 18 % of the average value of its portfolio.
Portfolio Turnover, Rate		18.00%
Expense Example Narrative [Text Block]		This example helps compare the cost of investing in the fund with the cost of investing in other funds. Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated:
Strategy [Heading]		Principal Investment Strategies
Strategy Narrative [Text Block]		Normally investing primarily in common stocks. Investing in domestic and foreign issuers. Investing in either "growth" stocks or "value" stocks or both. Using fundamental analysis of factors such as each issuer's financial condition and industry position, as well as market and economic conditions, to select investments.
Bar Chart and Performance Table [Heading]		Performance
Performance Narrative [Text Block]		The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the "Additional Index Information" section of the prospectus. Past performance (before and after taxes) is not an indication of future performance. Visit institutional.fidelity.com for more recent performance information.
Performance Information Illustrates Variability of Returns [Text]		The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Availability Website Address [Text]		institutional.fidelity.com
Performance Past Does Not Indicate Future [Text]		Past performance (before and after taxes) is not an indication of future performance.
Bar Chart [Heading]		Year-by-Year Returns
Year to Date Return, Label [Optional Text]		Year-to-Date Return
Bar Chart, Year to Date Return, Date		Sep. 30, 2025
Bar Chart, Year to Date Return		21.35%
Highest Quarterly Return, Label [Optional Text]		Highest Quarter Return
Highest Quarterly Return, Date		Dec. 31, 2020
Highest Quarterly Return		18.93%
Lowest Quarterly Return, Label [Optional Text]		Lowest Quarter Return
Lowest Quarterly Return, Date		Mar. 31, 2020
Lowest Quarterly Return		(24.58%)
Performance Table Heading		Average Annual Returns
Performance Table Uses Highest Federal Rate		After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred		The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan).
Performance Table Explanation after Tax Higher		Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
Performance Table Narrative		After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
FidelityAdvisorCapitalDevelopmentFund-OPRO | Fidelity Advisor Capital Development Fund | After Taxes on Distributions | Fidelity Advisor Capital Development Fund - Class O
Prospectus Line Items
Average Annual Return, Label [Optional Text]			Return After Taxes on Distributions
Average Annual Return, Percent			24.46%											13.17%	10.59%
FidelityAdvisorCapitalDevelopmentFund-OPRO | Fidelity Advisor Capital Development Fund | After Taxes on Distributions and Sales | Fidelity Advisor Capital Development Fund - Class O
Prospectus Line Items
Average Annual Return, Label [Optional Text]			Return After Taxes on Distributions and Sale of Fund Shares
Average Annual Return, Percent			17.72%											11.53%	9.64%
FidelityAdvisorCapitalDevelopmentFund-OPRO | Fidelity Advisor Capital Development Fund | SP001
Prospectus Line Items
Average Annual Return, Label [Optional Text]			S&P 500® Index
Average Annual Return, Percent			25.02%											14.53%	13.10%
FidelityAdvisorCapitalDevelopmentFund-AMCIPRO | Fidelity Advisor Capital Development Fund | Fidelity Advisor Capital Development Fund - Class A
Prospectus Line Items
Maximum Cumulative Sales Charge (as a percentage of Offering Price)		5.75%
Maximum Deferred Sales Charge (as a percentage)	[1]	0.00%
Management Fees (as a percentage of Assets)		0.56%
Distribution and Service (12b-1) Fees		0.25%
Other Expenses (as a percentage of Assets):		0.01%
Expenses (as a percentage of Assets)		0.82%
Expense Example, with Redemption, 1 Year		$ 654
Expense Example, with Redemption, 3 Years		822
Expense Example, with Redemption, 5 Years		1,004
Expense Example, with Redemption, 10 Years		1,530
Expense Example, No Redemption, 1 Year		654
Expense Example, No Redemption, 3 Years		822
Expense Example, No Redemption, 5 Years		1,004
Expense Example, No Redemption, 10 Years		$ 1,530
Average Annual Return, Label [Optional Text]			Return Before Taxes
Average Annual Return, Percent			19.26%											13.04%	11.29%
Annual Return [Percent]				26.54%	23.87%	(8.23%)	25.05%	8.86%	30.94%	(9.09%)	17.73%	16.24%	(3.01%)
FidelityAdvisorCapitalDevelopmentFund-AMCIPRO | Fidelity Advisor Capital Development Fund | Fidelity Advisor Capital Development Fund - Class M
Prospectus Line Items
Maximum Cumulative Sales Charge (as a percentage of Offering Price)		3.50%
Maximum Deferred Sales Charge (as a percentage)	[1]	0.00%
Management Fees (as a percentage of Assets)		0.66%
Distribution and Service (12b-1) Fees		0.50%
Other Expenses (as a percentage of Assets):		0.01%
Expenses (as a percentage of Assets)		1.17%
Expense Example, with Redemption, 1 Year		$ 465
Expense Example, with Redemption, 3 Years		709
Expense Example, with Redemption, 5 Years		971
Expense Example, with Redemption, 10 Years		1,721
Expense Example, No Redemption, 1 Year		465
Expense Example, No Redemption, 3 Years		709
Expense Example, No Redemption, 5 Years		971
Expense Example, No Redemption, 10 Years		$ 1,721
Average Annual Return, Label [Optional Text]			Return Before Taxes
Average Annual Return, Percent			21.70%											13.06%	11.00%
FidelityAdvisorCapitalDevelopmentFund-AMCIPRO | Fidelity Advisor Capital Development Fund | Fidelity Advisor Capital Development Fund - Class C
Prospectus Line Items
Maximum Cumulative Sales Charge (as a percentage of Offering Price)		0.00%
Maximum Deferred Sales Charge (as a percentage)	[2]	1.00%
Management Fees (as a percentage of Assets)		0.66%
Distribution and Service (12b-1) Fees		1.00%
Other Expenses (as a percentage of Assets):		0.00%
Expenses (as a percentage of Assets)		1.66%
Expenses Deferred Charges [Text Block]		On Class C shares redeemed less than one year after purchase.
Expense Example, with Redemption, 1 Year		$ 269
Expense Example, with Redemption, 3 Years		523
Expense Example, with Redemption, 5 Years		902
Expense Example, with Redemption, 10 Years		1,741
Expense Example, No Redemption, 1 Year		169
Expense Example, No Redemption, 3 Years		523
Expense Example, No Redemption, 5 Years		902
Expense Example, No Redemption, 10 Years		$ 1,741
Average Annual Return, Label [Optional Text]			Return Before Taxes
Average Annual Return, Percent			24.46%											13.32%	11.10%
FidelityAdvisorCapitalDevelopmentFund-AMCIPRO | Fidelity Advisor Capital Development Fund | Fidelity Advisor Capital Development Fund - Class I
Prospectus Line Items
Maximum Cumulative Sales Charge (as a percentage of Offering Price)		0.00%
Maximum Deferred Sales Charge (as a percentage)		0.00%
Management Fees (as a percentage of Assets)		0.66%
Distribution and Service (12b-1) Fees		0.00%
Other Expenses (as a percentage of Assets):		0.01%
Expenses (as a percentage of Assets)		0.67%
Expense Example, with Redemption, 1 Year		$ 68
Expense Example, with Redemption, 3 Years		214
Expense Example, with Redemption, 5 Years		373
Expense Example, with Redemption, 10 Years		835
Expense Example, No Redemption, 1 Year		68
Expense Example, No Redemption, 3 Years		214
Expense Example, No Redemption, 5 Years		373
Expense Example, No Redemption, 10 Years		$ 835
Average Annual Return, Label [Optional Text]			Return Before Taxes
Average Annual Return, Percent			26.72%											14.53%	12.11%
FidelityAdvisorCapitalDevelopmentFund-AMCIPRO | Fidelity Advisor Capital Development Fund
Prospectus Line Items
Risk/Return [Heading]		Fund Summary Fund /Class: Fidelity Advisor® Capital Development Fund /A, M, C, I
Objective [Heading]		Investment Objective
Objective, Primary [Text Block]		Fidelity Advisor® Capital Development Fund seeks capital growth.
Expense Heading [Optional Text]		Fee Table
Expense Narrative [Text Block]		The following table describes the fees and expenses that may be incurred when you buy, hold, and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $ 50,000 in the fund or certain other Fidelity ® funds. More information about these and other discounts is available from your investment professional and in the "Fund Distribution" section beginning on page 17 of the prospectus and in the sales charge waiver appendix to the prospectus.
Shareholder Fees Caption [Optional Text]		Shareholder fees
Operating Expenses Caption [Optional Text]		Annual Operating Expenses
Portfolio Turnover [Heading]		Portfolio Turnover
Portfolio Turnover [Text Block]		The fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual operating expenses or in the example, affect the fund's performance. During the most recent fiscal year, the fund's portfolio turnover rate was 18 % of the average value of its portfolio.
Portfolio Turnover, Rate		18.00%
Expenses Deferred Charges [Text Block]		Class A and Class M purchases of $1 million or more will not be subject to a front-end sales charge. Such Class A and Class M purchases may be subject, upon redemption, to a contingent deferred sales charge (CDSC) of 1.00% and 0.25%, respectively.
Expense Breakpoint Discounts [Text]		You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $ 50,000 in the fund or certain other Fidelity ® funds. More information about these and other discounts is available from your investment professional and in the "Fund Distribution" section beginning on page 17 of the prospectus
Expense Breakpoint, Minimum Investment Required [Amount]		$ 50,000
Expense Example Narrative [Text Block]		This example helps compare the cost of investing in the fund with the cost of investing in other funds. Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated and if you hold your shares:
Strategy [Heading]		Principal Investment Strategies
Strategy Narrative [Text Block]		Normally investing primarily in common stocks. Investing in domestic and foreign issuers. Investing in either "growth" stocks or "value" stocks or both. Using fundamental analysis of factors such as each issuer's financial condition and industry position, as well as market and economic conditions, to select investments.
Bar Chart and Performance Table [Heading]		Performance
Performance Narrative [Text Block]		The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the "Additional Index Information" section of the prospectus. Past performance (before and after taxes) is not an indication of future performance. Visit institutional.fidelity.com for more recent performance information.
Performance Information Illustrates Variability of Returns [Text]		The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Availability Website Address [Text]		institutional.fidelity.com
Performance Past Does Not Indicate Future [Text]		Past performance (before and after taxes) is not an indication of future performance.
Bar Chart [Heading]		Year-by-Year Returns
Bar Chart Narrative [Text Block]		The returns in the bar chart do not reflect any applicable sales charges; if sales charges were reflected, returns would be lower than those shown.
Bar Chart Does Not Reflect Sales Loads [Text]		The returns in the bar chart do not reflect any applicable sales charges; if sales charges were reflected, returns would be lower than those shown.
Year to Date Return, Label [Optional Text]		Year-to-Date Return
Bar Chart, Year to Date Return, Date		Sep. 30, 2025
Bar Chart, Year to Date Return		21.12%
Highest Quarterly Return, Label [Optional Text]		Highest Quarter Return
Highest Quarterly Return, Date		Dec. 31, 2020
Highest Quarterly Return		18.83%
Lowest Quarterly Return, Label [Optional Text]		Lowest Quarter Return
Lowest Quarterly Return, Date		Mar. 31, 2020
Lowest Quarterly Return		(24.64%)
Performance Table Heading		Average Annual Returns
Performance Table Does Reflect Sales Loads		Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges.
Performance Table Uses Highest Federal Rate		After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred		The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan).
Performance Table One Class of after Tax Shown [Text]		After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary.
Performance Table Explanation after Tax Higher		Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
Performance Table Narrative		Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges. After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
FidelityAdvisorCapitalDevelopmentFund-AMCIPRO | Fidelity Advisor Capital Development Fund | After Taxes on Distributions | Fidelity Advisor Capital Development Fund - Class A
Prospectus Line Items
Average Annual Return, Label [Optional Text]			Return After Taxes on Distributions
Average Annual Return, Percent			16.88%											11.53%	9.63%
FidelityAdvisorCapitalDevelopmentFund-AMCIPRO | Fidelity Advisor Capital Development Fund | After Taxes on Distributions and Sales | Fidelity Advisor Capital Development Fund - Class A
Prospectus Line Items
Average Annual Return, Label [Optional Text]			Return After Taxes on Distributions and Sale of Fund Shares
Average Annual Return, Percent			13.12%											10.15%	8.79%
FidelityAdvisorCapitalDevelopmentFund-AMCIPRO | Fidelity Advisor Capital Development Fund | SP001
Prospectus Line Items
Average Annual Return, Label [Optional Text]			S&P 500® Index
Average Annual Return, Percent			25.02%											14.53%	13.10%
FidelityAdvisorDiversifiedStockFund-OPRO | Fidelity Advisor Diversified Stock Fund | Fidelity Advisor Diversified Stock Fund - Class O
Prospectus Line Items
Management Fees (as a percentage of Assets)		0.40%
Distribution and Service (12b-1) Fees		0.00%
Other Expenses (as a percentage of Assets):		0.01%
Expenses (as a percentage of Assets)		0.41%
Expense Example, with Redemption, 1 Year		$ 42
Expense Example, with Redemption, 3 Years		132
Expense Example, with Redemption, 5 Years		230
Expense Example, with Redemption, 10 Years		$ 518
Average Annual Return, Label [Optional Text]			Return Before Taxes
Average Annual Return, Percent			27.86%											16.61%	13.22%
Annual Return [Percent]				27.86%	28.33%	(19.79%)	28.50%	27.48%	28.20%	(5.30%)	19.32%	17.08%	(5.31%)
FidelityAdvisorDiversifiedStockFund-OPRO | Fidelity Advisor Diversified Stock Fund
Prospectus Line Items
Risk/Return [Heading]		Fund Summary Fund /Class: Fidelity Advisor® Diversified Stock Fund /O
Objective [Heading]		Investment Objective
Objective, Primary [Text Block]		Fidelity Advisor® Diversified Stock Fund seeks capital growth.
Expense Heading [Optional Text]		Fee Table
Expense Narrative [Text Block]		The following table describes the fees and expenses that may be incurred when you buy, hold, and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below.
Shareholder Fees Caption [Optional Text]		Shareholder fees
Shareholder Fee, Other		$ 0
Operating Expenses Caption [Optional Text]		Annual Operating Expenses
Portfolio Turnover [Heading]		Portfolio Turnover
Portfolio Turnover [Text Block]		The fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual operating expenses or in the example, affect the fund's performance. During the most recent fiscal year, the fund's portfolio turnover rate was 85 % of the average value of its portfolio.
Portfolio Turnover, Rate		85.00%
Expense Example Narrative [Text Block]		This example helps compare the cost of investing in the fund with the cost of investing in other funds. Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated:
Strategy [Heading]		Principal Investment Strategies
Strategy Narrative [Text Block]		Normally investing at least 80% of assets in stocks. Stocks are a type of equity security that represent an ownership interest in an issuer. Stocks include common stocks (including depositary receipts evidencing ownership of common stock) and preferred stocks. Effective December 11, 2025, derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives. Normally investing primarily in common stocks. Investing in domestic and foreign issuers. Investing in either "growth" stocks or "value" stocks or both. Using fundamental analysis of factors such as each issuer's financial condition and industry position, as well as market and economic conditions, to select investments.
Bar Chart and Performance Table [Heading]		Performance
Performance Narrative [Text Block]		The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the "Additional Index Information" section of the prospectus. Past performance (before and after taxes) is not an indication of future performance. Visit institutional.fidelity.com for more recent performance information.
Performance Information Illustrates Variability of Returns [Text]		The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Availability Website Address [Text]		institutional.fidelity.com
Performance Past Does Not Indicate Future [Text]		Past performance (before and after taxes) is not an indication of future performance.
Bar Chart [Heading]		Year-by-Year Returns
Year to Date Return, Label [Optional Text]		Year-to-Date Return
Bar Chart, Year to Date Return, Date		Sep. 30, 2025
Bar Chart, Year to Date Return		11.19%
Highest Quarterly Return, Label [Optional Text]		Highest Quarter Return
Highest Quarterly Return, Date		Jun. 30, 2020
Highest Quarterly Return		22.54%
Lowest Quarterly Return, Label [Optional Text]		Lowest Quarter Return
Lowest Quarterly Return, Date		Dec. 31, 2018
Lowest Quarterly Return		(16.91%)
Performance Table Heading		Average Annual Returns
Performance Table Uses Highest Federal Rate		After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred		The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan).
Performance Table Explanation after Tax Higher		Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
Performance Table Narrative		After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
FidelityAdvisorDiversifiedStockFund-OPRO | Fidelity Advisor Diversified Stock Fund | After Taxes on Distributions | Fidelity Advisor Diversified Stock Fund - Class O
Prospectus Line Items
Average Annual Return, Label [Optional Text]			Return After Taxes on Distributions
Average Annual Return, Percent			24.16%											14.08%	11.10%
FidelityAdvisorDiversifiedStockFund-OPRO | Fidelity Advisor Diversified Stock Fund | After Taxes on Distributions and Sales | Fidelity Advisor Diversified Stock Fund - Class O
Prospectus Line Items
Average Annual Return, Label [Optional Text]			Return After Taxes on Distributions and Sale of Fund Shares
Average Annual Return, Percent			19.18%											12.92%	10.35%
FidelityAdvisorDiversifiedStockFund-OPRO | Fidelity Advisor Diversified Stock Fund | SP001
Prospectus Line Items
Average Annual Return, Label [Optional Text]			S&P 500® Index
Average Annual Return, Percent			25.02%											14.53%	13.10%
FidelityAdvisorDiversifiedStockFund-AMCIZPRO | Fidelity Advisor Diversified Stock Fund | Fidelity Advisor Diversified Stock Fund - Class A
Prospectus Line Items
Maximum Cumulative Sales Charge (as a percentage of Offering Price)		5.75%
Maximum Deferred Sales Charge (as a percentage)	[3]	0.00%
Management Fees (as a percentage of Assets)		0.50%
Distribution and Service (12b-1) Fees		0.25%
Other Expenses (as a percentage of Assets):		0.01%
Expenses (as a percentage of Assets)		0.76%
Expense Example, with Redemption, 1 Year		$ 648
Expense Example, with Redemption, 3 Years		804
Expense Example, with Redemption, 5 Years		973
Expense Example, with Redemption, 10 Years		1,463
Expense Example, No Redemption, 1 Year		648
Expense Example, No Redemption, 3 Years		804
Expense Example, No Redemption, 5 Years		973
Expense Example, No Redemption, 10 Years		$ 1,463
Average Annual Return, Label [Optional Text]			Return Before Taxes
Average Annual Return, Percent			20.10%											14.82%	12.16%
Annual Return [Percent]				27.42%	27.88%	(20.08%)	28.01%	27.04%	27.79%	(5.64%)	18.92%	16.64%	(5.62%)
FidelityAdvisorDiversifiedStockFund-AMCIZPRO | Fidelity Advisor Diversified Stock Fund | Fidelity Advisor Diversified Stock Fund - Class M
Prospectus Line Items
Maximum Cumulative Sales Charge (as a percentage of Offering Price)		3.50%
Maximum Deferred Sales Charge (as a percentage)	[3]	0.00%
Management Fees (as a percentage of Assets)		0.57%
Distribution and Service (12b-1) Fees		0.50%
Other Expenses (as a percentage of Assets):		0.01%
Expenses (as a percentage of Assets)		1.08%
Expense Example, with Redemption, 1 Year		$ 456
Expense Example, with Redemption, 3 Years		681
Expense Example, with Redemption, 5 Years		925
Expense Example, with Redemption, 10 Years		1,621
Expense Example, No Redemption, 1 Year		456
Expense Example, No Redemption, 3 Years		681
Expense Example, No Redemption, 5 Years		925
Expense Example, No Redemption, 10 Years		$ 1,621
Average Annual Return, Label [Optional Text]			Return Before Taxes
Average Annual Return, Percent			22.58%											14.99%	12.03%
FidelityAdvisorDiversifiedStockFund-AMCIZPRO | Fidelity Advisor Diversified Stock Fund | Fidelity Advisor Diversified Stock Fund - Class C
Prospectus Line Items
Maximum Cumulative Sales Charge (as a percentage of Offering Price)		0.00%
Maximum Deferred Sales Charge (as a percentage)	[4]	1.00%
Management Fees (as a percentage of Assets)		0.59%
Distribution and Service (12b-1) Fees		1.00%
Other Expenses (as a percentage of Assets):		0.01%
Expenses (as a percentage of Assets)		1.60%
Expenses Deferred Charges [Text Block]		On Class C shares redeemed less than one year after purchase.
Expense Example, with Redemption, 1 Year		$ 263
Expense Example, with Redemption, 3 Years		505
Expense Example, with Redemption, 5 Years		871
Expense Example, with Redemption, 10 Years		1,675
Expense Example, No Redemption, 1 Year		163
Expense Example, No Redemption, 3 Years		505
Expense Example, No Redemption, 5 Years		871
Expense Example, No Redemption, 10 Years		$ 1,675
Average Annual Return, Label [Optional Text]			Return Before Taxes
Average Annual Return, Percent			25.36%											15.17%	12.00%
FidelityAdvisorDiversifiedStockFund-AMCIZPRO | Fidelity Advisor Diversified Stock Fund | Fidelity Advisor Diversified Stock Fund - Class I
Prospectus Line Items
Maximum Cumulative Sales Charge (as a percentage of Offering Price)		0.00%
Maximum Deferred Sales Charge (as a percentage)		0.00%
Management Fees (as a percentage of Assets)		0.55%
Distribution and Service (12b-1) Fees		0.00%
Other Expenses (as a percentage of Assets):		0.01%
Expenses (as a percentage of Assets)		0.56%
Expense Example, with Redemption, 1 Year		$ 57
Expense Example, with Redemption, 3 Years		179
Expense Example, with Redemption, 5 Years		313
Expense Example, with Redemption, 10 Years		701
Expense Example, No Redemption, 1 Year		57
Expense Example, No Redemption, 3 Years		179
Expense Example, No Redemption, 5 Years		313
Expense Example, No Redemption, 10 Years		$ 701
Average Annual Return, Label [Optional Text]			Return Before Taxes
Average Annual Return, Percent			27.65%											16.43%	13.05%
FidelityAdvisorDiversifiedStockFund-AMCIZPRO | Fidelity Advisor Diversified Stock Fund | Fidelity Advisor Diversified Stock Fund - Class Z
Prospectus Line Items
Maximum Cumulative Sales Charge (as a percentage of Offering Price)		0.00%
Maximum Deferred Sales Charge (as a percentage)		0.00%
Management Fees (as a percentage of Assets)		0.43%
Distribution and Service (12b-1) Fees		0.00%
Other Expenses (as a percentage of Assets):		0.01%
Expenses (as a percentage of Assets)		0.44%
Expense Example, with Redemption, 1 Year		$ 45
Expense Example, with Redemption, 3 Years		141
Expense Example, with Redemption, 5 Years		246
Expense Example, with Redemption, 10 Years		555
Expense Example, No Redemption, 1 Year		45
Expense Example, No Redemption, 3 Years		141
Expense Example, No Redemption, 5 Years		246
Expense Example, No Redemption, 10 Years		$ 555
Average Annual Return, Label [Optional Text]			Return Before Taxes
Average Annual Return, Percent			27.81%											16.56%	13.19%
FidelityAdvisorDiversifiedStockFund-AMCIZPRO | Fidelity Advisor Diversified Stock Fund
Prospectus Line Items
Risk/Return [Heading]		Fund Summary Fund /Class: Fidelity Advisor® Diversified Stock Fund /A, M, C, I, Z
Objective [Heading]		Investment Objective
Objective, Primary [Text Block]		Fidelity Advisor® Diversified Stock Fund seeks capital growth.
Expense Heading [Optional Text]		Fee Table
Expense Narrative [Text Block]		The following table describes the fees and expenses that may be incurred when you buy, hold, and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $ 50,000 in the fund or certain other Fidelity ® funds. More information about these and other discounts is available from your investment professional and in the "Fund Distribution" section beginning on page 18 of the prospectus and in the sales charge waiver appendix to the prospectus.
Shareholder Fees Caption [Optional Text]		Shareholder fees
Operating Expenses Caption [Optional Text]		Annual Operating Expenses
Portfolio Turnover [Heading]		Portfolio Turnover
Portfolio Turnover [Text Block]		The fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual operating expenses or in the example, affect the fund's performance. During the most recent fiscal year, the fund's portfolio turnover rate was 85 % of the average value of its portfolio.
Portfolio Turnover, Rate		85.00%
Expenses Deferred Charges [Text Block]		Class A and Class M purchases of $1 million or more will not be subject to a front-end sales charge. Such Class A and Class M purchases may be subject, upon redemption, to a contingent deferred sales charge (CDSC) of 1.00% and 0.25%, respectively.
Expense Breakpoint Discounts [Text]		You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $ 50,000 in the fund or certain other Fidelity ® funds. More information about these and other discounts is available from your investment professional and in the "Fund Distribution" section beginning on page 18 of the prospectus
Expense Breakpoint, Minimum Investment Required [Amount]		$ 50,000
Expense Example Narrative [Text Block]		This example helps compare the cost of investing in the fund with the cost of investing in other funds. Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated and if you hold your shares:
Strategy [Heading]		Principal Investment Strategies
Strategy Narrative [Text Block]		Normally investing at least 80% of assets in stocks. Stocks are a type of equity security that represent an ownership interest in an issuer. Stocks include common stocks (including depositary receipts evidencing ownership of common stock) and preferred stocks. Effective December 11, 2025, derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives. Normally investing primarily in common stocks. Investing in domestic and foreign issuers. Investing in either "growth" stocks or "value" stocks or both. Using fundamental analysis of factors such as each issuer's financial condition and industry position, as well as market and economic conditions, to select investments.
Bar Chart and Performance Table [Heading]		Performance
Performance Narrative [Text Block]		The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the "Additional Index Information" section of the prospectus. Past performance (before and after taxes) is not an indication of future performance. Visit institutional.fidelity.com for more recent performance information.
Performance Information Illustrates Variability of Returns [Text]		The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Availability Website Address [Text]		institutional.fidelity.com
Performance Past Does Not Indicate Future [Text]		Past performance (before and after taxes) is not an indication of future performance.
Bar Chart [Heading]		Year-by-Year Returns
Bar Chart Narrative [Text Block]		The returns in the bar chart do not reflect any applicable sales charges; if sales charges were reflected, returns would be lower than those shown.
Bar Chart Does Not Reflect Sales Loads [Text]		The returns in the bar chart do not reflect any applicable sales charges; if sales charges were reflected, returns would be lower than those shown.
Year to Date Return, Label [Optional Text]		Year-to-Date Return
Bar Chart, Year to Date Return, Date		Sep. 30, 2025
Bar Chart, Year to Date Return		10.92%
Highest Quarterly Return, Label [Optional Text]		Highest Quarter Return
Highest Quarterly Return, Date		Jun. 30, 2020
Highest Quarterly Return		22.42%
Lowest Quarterly Return, Label [Optional Text]		Lowest Quarter Return
Lowest Quarterly Return, Date		Dec. 31, 2018
Lowest Quarterly Return		(17.01%)
Performance Table Heading		Average Annual Returns
Performance Table Does Reflect Sales Loads		Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges.
Performance Table Uses Highest Federal Rate		After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred		The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan).
Performance Table One Class of after Tax Shown [Text]		After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary.
Performance Table Explanation after Tax Higher		Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
Performance Table Narrative		Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges. After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
FidelityAdvisorDiversifiedStockFund-AMCIZPRO | Fidelity Advisor Diversified Stock Fund | After Taxes on Distributions | Fidelity Advisor Diversified Stock Fund - Class A
Prospectus Line Items
Average Annual Return, Label [Optional Text]			Return After Taxes on Distributions
Average Annual Return, Percent			16.54%											12.34%	10.09%
FidelityAdvisorDiversifiedStockFund-AMCIZPRO | Fidelity Advisor Diversified Stock Fund | After Taxes on Distributions and Sales | Fidelity Advisor Diversified Stock Fund - Class A
Prospectus Line Items
Average Annual Return, Label [Optional Text]			Return After Taxes on Distributions and Sale of Fund Shares
Average Annual Return, Percent			14.49%											11.44%	9.45%
FidelityAdvisorDiversifiedStockFund-AMCIZPRO | Fidelity Advisor Diversified Stock Fund | SP001
Prospectus Line Items
Average Annual Return, Label [Optional Text]			S&P 500® Index
Average Annual Return, Percent			25.02%											14.53%	13.10%
Document Type		485BPOS
Registrant Name		Fidelity Destiny Portfolios

[1] A Class A and Class M purchases of $1 million or more will not be subject to a front-end sales charge. Such Class A and Class M purchases may be subject, upon redemption, to a contingent deferred sales charge (CDSC) of 1.00% and 0.25%, respectively.

[2] B On Class C shares redeemed less than one year after purchase.

[3] A Class A and Class M purchases of $1 million or more will not be subject to a front-end sales charge. Such Class A and Class M purchases may be subject, upon redemption, to a contingent deferred sales charge (CDSC) of 1.00% and 0.25%, respectively.

[4] B On Class C shares redeemed less than one year after purchase.