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Risk Return Abstract rr_RiskReturnAbstract  
Registrant Name dei_EntityRegistrantName The Prudential Series Fund
Prospectus Date rr_ProspectusDate May 01, 2024
PSF Mid-Cap Growth Portfolio  
Risk Return Abstract rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading <span style="color:#545454;font-family:Arial;font-size:14pt;">SUMMARY: PSF MID-CAP GROWTH PORTFOLIO</span>
Objective [Heading] rr_ObjectiveHeading <span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;text-transform:uppercase;">INVESTMENT OBJECTIVE</span>
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The investment objective of the Portfolio is long-term capital appreciation.
Expense [Heading] rr_ExpenseHeading <span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;text-transform:uppercase;">PORTFOLIO FEES AND EXPENSES</span>
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock The table below shows the fees and expenses that you may pay if you invest in shares of the Portfolio. The table does not include Contract charges. Because Contract charges are not included, the total fees and expenses that you will incur will be higher than the fees and expenses set forth in the table. See your Contract prospectus for more information about Contract charges.
Operating Expenses Caption [Text] rr_OperatingExpensesCaption <span style="font-family:Arial Narrow;font-size:8pt;font-weight:bold;margin-left:0.0pt;">Annual Portfolio Operating Expenses (expenses that you pay each year as a percentage of the value of your </span><span style="font-family:Arial Narrow;font-size:8pt;font-weight:bold;margin-left:0.0pt;">investment)</span><span style="font-family:Arial Narrow;font-size:5pt;font-weight:bold;margin-left:0.0pt;position:relative;top:-3.25pt;">(1)</span>
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading <span style="font-family:Arial;font-size:10pt;font-weight:bold;">Portfolio Turnover. </span>
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The Portfolio 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. These costs, which are not reflected in annual portfolio operating expenses or in the example, affect the Portfolio's performance. During the Portfolio's most recent fiscal year ended December 31, the Portfolio's portfolio turnover rate was 49% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 49.00%
Expenses Restated to Reflect Current [Text] rr_ExpensesRestatedToReflectCurrent <span style="font-family:Arial Narrow;font-size:8pt;">Any differences in total annual portfolio operating expenses shown in the table above and the expense ratio (after waivers and/or reimbursements) in the Portfolio’s Financial Highlights are attributable to changes in management fees, fee waivers and/or expense limitations occurring after the end of the most recent fiscal year.</span>
Expense Example [Heading] rr_ExpenseExampleHeading <span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;">Example. </span>
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock The following example is intended to help you compare the cost of investing in the Portfolio with the cost of investing in other mutual funds. The table does not include Contract charges. Because Contract charges are not included, the total fees and expenses that you will incur will be higher than the fees and expenses set forth in the example. See your Contract prospectus for more information about Contract charges.The example assumes that you invest $10,000 in the Portfolio for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Portfolio’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:
Strategy [Heading] rr_StrategyHeading <span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;text-transform:uppercase;">INVESTMENTS, RISKS AND PERFORMANCE</span><span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;">Principal Investment Strategies. </span>
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock In pursuing its investment objective, the Portfolio normally invests at least 80% of its assets (net assets plus any borrowings made for investment purposes) in equity securities of medium-sized US companies, including common stocks and debt securities and preferred stocks that are convertible to common stocks. The Portfolio invests primarily in common stocks of medium-sized US companies which the subadviser, J.P. Morgan Investment Management, Inc., believes are capable of achieving sustained growth. Medium-sized US companies are companies with market capitalizations similar to those within the universe of the Russell® Midcap Growth Index (measured at the time of purchase).The Portfolio may invest in derivatives as substitutes for securities in which the Portfolio can invest. To the extent the Portfolio uses derivatives, the Portfolio will primarily use futures contracts to more effectively gain targeted equity exposure from its cash positions. In managing the Portfolio, the subadviser employs a process that combines research, valuation and stock selection to identify companies that have a history of above-average growth or which the adviser believes will achieve above-average growth in the future. Growth companies purchased for the Portfolio include those with leading competitive positions that can achieve sustainable growth.
Risk [Heading] rr_RiskHeading <span style="font-family:Arial;font-size:10pt;font-weight:bold;">Principal Risks of Investing in the Portfolio.</span>
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading <span style="font-family:Arial;font-size:10pt;font-weight:bold;">Past Performance.</span>
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock The bar chart and table provide some indication of the risks of investing in the Portfolio by showing changes in the Portfolio's performance from year to year and by showing how the Portfolio's average annual returns for 1, 5, and 10 years compare with those of a broad-based securities market index that reflects the performance of the overall market applicable to the Portfolio.Past performance does not mean that the Portfolio will achieve similar results in the future.The annual returns and average annual returns shown in the chart and table are after deduction of expenses and do not include Contract charges. If Contract charges were included, the returns shown would have been lower than those shown. Consult your Contract prospectus for information about Contract charges.Annual return information in the bar chart is provided only for Class I shares. Because all of the Portfolio’s shares are invested in the same portfolio of securities, annual returns for Class II and Class III shares would be lower because Class II and Class III shares do not have the same expenses as Class I shares.Note: The PSF Mid-Cap Growth Portfolio changed its subadviser and changed its investment policies and strategy effective January 28, 2019. The performance figures prior to January 28, 2019 for the Portfolio reflect the Portfolio's former investment operations, policies, and strategies prior to this date. Such performance is not representative of the Portfolio's current investment operations, policies, and strategies that took effect as of this date, and the Portfolio's performance after this date could be materially different.Effective May 1, 2024, the Portfolio's broad-based performance index changed to the S&P 500 Index. The S&P 500 Index is an appropriate broad-based securities market index that represents the overall market applicable to the Portfolio. The Portfolio will retain the Russell Midcap Growth Index as its additional benchmark for performance comparison.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns <span style="font-family:Arial;font-size:10pt;">The bar chart and table provide some indication of the risks of investing in the Portfolio by showing changes in the Portfolio's performance from year to year and by showing how the Portfolio's average annual returns for 1, 5, and 10 years compare with those of a broad-based securities market index that reflects the performance of the overall market applicable to the Portfolio.</span>
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture <span style="font-family:Arial;font-size:10pt;">Past performance does not mean that the Portfolio will achieve similar results in the future.</span>
Bar Chart [Heading] rr_BarChartHeading Annual Total Returns (Class I Shares)
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads <span style="color:#000000;font-family:Arial;font-size:10pt;">The annual returns and average annual returns shown in the chart and table are after deduction of expenses and do not include Contract charges. If Contract charges were included, the returns shown would have been lower than those shown.</span>
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock Best Quarter:Worst Quarter:32.28%2nd Quarter 2020-20.69%2nd Quarter 2022
Performance Table Heading rr_PerformanceTableHeading <span style="font-family:Arial Narrow;font-size:8pt;font-weight:bold;margin-left:3pt;">Average Annual Total Returns (For the periods ended December 31, 2023)</span>
PSF Mid-Cap Growth Portfolio | Risk Lose Money [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock The relative significance of the risks summarized below may change over time. All investments have risks to some degree, and it is possible that you could lose money by investing in the Portfolio.
PSF Mid-Cap Growth Portfolio | Risk Not Insured Depository Institution [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock An investment in the Portfolio is not a deposit with a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
PSF Mid-Cap Growth Portfolio | Equity Securities Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Equity Securities Risk. The value of a particular stock or equity-related security held by the Portfolio could fluctuate, perhaps greatly, in response to a number of factors, such as changes in the issuer’s financial condition or the value of the equity markets or a sector of those markets. Such events may result in losses to the Portfolio. In addition, due to decreases in liquidity, the Portfolio may be unable to sell its securities holdings within a reasonable time at the price it values the security or at any price.
PSF Mid-Cap Growth Portfolio | Mid Sized Company Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Mid-Sized Company Risk. The shares of mid-sized companies tend to trade less frequently than those of larger, more established companies, which can have an adverse effect on the pricing and volatility of these securities and on the Portfolio’s ability to sell the securities.
PSF Mid-Cap Growth Portfolio | Investment Style Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Investment Style Risk. Securities held by the Portfolio as a result of a particular investment style, such as growth or value, tend to perform differently (i.e., better or worse than other segments of, or the overall, stock market) depending on market and economic conditions and investor sentiment. At times when the investment style is out of favor, the Portfolio may underperform other funds that invest in similar asset classes but use different investment styles.
PSF Mid-Cap Growth Portfolio | Economic And Market Events Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Economic and Market Events Risk. Economic and market events risk is the risk that one or more markets in which the Portfolio invests will decline in value, including the possibility that the markets will decline sharply and unpredictably. While a Portfolio’s Manager or Subadviser(s) may make efforts to control the risks associated with market changes, and may attempt to identify changes as they occur, market environment changes can be sudden and extreme. Significant shocks to or disruptions of the financial markets or the economy, including those relating to general economic, political, or financial market conditions; significant or unexpected failures, near-failures or credit downgrades of key institutions; investor sentiment and market perceptions; unexpected changes in the prices of key commodities; government actions; geopolitical events or changes; and factors related to a specific issuer, geography, industry or sector, could adversely affect the liquidity and volatility of securities held by the Portfolio. In periods of market volatility and/or declines, the Portfolio may experience high levels of shareholder redemptions, and may have to sell securities at times when it would otherwise not do so, and at unfavorable prices.
PSF Mid-Cap Growth Portfolio | Expense Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Expense Risk. The actual cost of investing in the Portfolio may be higher than the expenses shown in the “Annual Portfolio Operating Expenses” table above for a variety of reasons, including, for example, if the Portfolio’s average net assets decrease.
PSF Mid-Cap Growth Portfolio | Leverage Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Leverage Risk. Borrowings, certain derivatives and other trading strategies can create leverage (i.e., a Portfolio’s investment exposures exceed its net asset value), which may amplify the Portfolio’s gains and losses and cause the Portfolio to be more volatile and riskier than if it had not been leveraged.
PSF Mid-Cap Growth Portfolio | Liquidity And Valuation Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Liquidity and Valuation Risk. The Portfolio may hold one or more securities for which there are no or few buyers and sellers or the securities are subject to limitations on transfer. The Portfolio may be unable to sell those portfolio holdings at the desired time or price, and may have difficulty determining the value of such securities for the purpose of determining the Portfolio’s net asset value. In such cases, investments owned by the Portfolio may be valued at fair value pursuant to policies and procedures adopted and implemented by the Manager. No assurance can be given that the fair value prices accurately reflect the value of the security. The Portfolio is subject to a liquidity risk management program, which limits the ability of the Portfolio to invest in illiquid investments.
PSF Mid-Cap Growth Portfolio | Market And Management Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Market and Management Risk. Markets in which the Portfolio invests may experience volatility and go down in value, and possibly sharply and unpredictably in short periods of time. Investment techniques, risk analyses, and investment strategies, which may include quantitative models or methods, used by a subadviser in making investment decisions for the Portfolio are subject to human error and may not produce the intended or desired results. The value of the Portfolio’s investments may be negatively affected by the occurrence of domestic or global events, including war, terrorism, environmental disasters, natural disasters, sanctions, cybersecurity events, supply chain disruptions,political or civil instability, and public health emergencies, among others. Such events may reduce consumer demand or economic output, result in market closures, travel restrictions or quarantines, and significantly adversely impact the economy. There is no guarantee that the investment objective of the Portfolio will be achieved.
PSF Mid-Cap Growth Portfolio | Regulatory Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Regulatory Risk. The Portfolio is subject to a variety of laws and regulations which govern its operations. The Portfolio is subject to regulation by the Securities and Exchange Commission (the SEC), and depending on the Portfolio, the Commodity Futures Trading Commission (the CFTC). Similarly, the businesses and other issuers of the securities and other instruments in which the Portfolio invests are also subject to considerable regulation. Changes in laws and regulations may materially impact the Portfolio, a security, business, sector, or market.
PSF Mid-Cap Growth Portfolio | Class I  
Risk Return Abstract rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.60% [1]
+ Distribution and/or Service Fees (12b-1 Fees) rr_DistributionAndService12b1FeesOverAssets [1]
+ Administration Fees rr_Component1OtherExpensesOverAssets [1]
+ Other Expenses rr_OtherExpensesOverAssets 0.06% [1]
= Total Annual Portfolio Operating Expenses rr_ExpensesOverAssets 0.66% [1]
1 Year rr_ExpenseExampleYear01 $ 67
3 Years rr_ExpenseExampleYear03 211
5 Years rr_ExpenseExampleYear05 368
10 Years rr_ExpenseExampleYear10 822
1 Year rr_ExpenseExampleNoRedemptionYear01 67
3 Years rr_ExpenseExampleNoRedemptionYear03 211
5 Years rr_ExpenseExampleNoRedemptionYear05 368
10 Years rr_ExpenseExampleNoRedemptionYear10 $ 822
2014 rr_AnnualReturn2014 9.51%
2015 rr_AnnualReturn2015 (2.36%)
2016 rr_AnnualReturn2016 4.32%
2017 rr_AnnualReturn2017 22.43%
2018 rr_AnnualReturn2018 (7.84%)
2019 rr_AnnualReturn2019 37.71%
2020 rr_AnnualReturn2020 47.47%
2021 rr_AnnualReturn2021 10.69%
2022 rr_AnnualReturn2022 (26.96%)
2023 rr_AnnualReturn2023 23.55%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel <span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;margin-left:0.00pt;">Best Quarter:</span>
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2020
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 32.28%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel <span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;margin-left:0.00pt;">Worst Quarter:</span>
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Jun. 30, 2022
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (20.69%)
One Year rr_AverageAnnualReturnYear01 23.55%
Five Years rr_AverageAnnualReturnYear05 15.20%
Ten Years rr_AverageAnnualReturnYear10 9.83%
PSF Mid-Cap Growth Portfolio | Class II  
Risk Return Abstract rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.60% [1]
+ Distribution and/or Service Fees (12b-1 Fees) rr_DistributionAndService12b1FeesOverAssets 0.25% [1]
+ Administration Fees rr_Component1OtherExpensesOverAssets 0.15% [1]
+ Other Expenses rr_OtherExpensesOverAssets 0.06% [1]
= Total Annual Portfolio Operating Expenses rr_ExpensesOverAssets 1.06% [1]
1 Year rr_ExpenseExampleYear01 $ 108
3 Years rr_ExpenseExampleYear03 337
5 Years rr_ExpenseExampleYear05 585
10 Years rr_ExpenseExampleYear10 1,294
1 Year rr_ExpenseExampleNoRedemptionYear01 108
3 Years rr_ExpenseExampleNoRedemptionYear03 337
5 Years rr_ExpenseExampleNoRedemptionYear05 585
10 Years rr_ExpenseExampleNoRedemptionYear10 $ 1,294
One Year rr_AverageAnnualReturnYear01 23.04%
Five Years rr_AverageAnnualReturnYear05 14.74%
Ten Years rr_AverageAnnualReturnYear10 9.39%
PSF Mid-Cap Growth Portfolio | Class III  
Risk Return Abstract rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.60% [1]
+ Distribution and/or Service Fees (12b-1 Fees) rr_DistributionAndService12b1FeesOverAssets 0.25% [1]
+ Administration Fees rr_Component1OtherExpensesOverAssets [1]
+ Other Expenses rr_OtherExpensesOverAssets 0.06% [1]
= Total Annual Portfolio Operating Expenses rr_ExpensesOverAssets 0.91% [1]
1 Year rr_ExpenseExampleYear01 $ 93
3 Years rr_ExpenseExampleYear03 290
5 Years rr_ExpenseExampleYear05 504
10 Years rr_ExpenseExampleYear10 1,120
1 Year rr_ExpenseExampleNoRedemptionYear01 93
3 Years rr_ExpenseExampleNoRedemptionYear03 290
5 Years rr_ExpenseExampleNoRedemptionYear05 504
10 Years rr_ExpenseExampleNoRedemptionYear10 $ 1,120
One Year rr_AverageAnnualReturnYear01 23.24%
Five Years rr_AverageAnnualReturnYear05
Ten Years rr_AverageAnnualReturnYear10
SinceInception rr_AverageAnnualReturnSinceInception (2.95%)
InceptionDate rr_AverageAnnualReturnInceptionDate Apr. 26, 2021
PSF Mid-Cap Growth Portfolio | Russell MidCap Growth Index (reflects no deduction for fees, expenses or taxes)  
Risk Return Abstract rr_RiskReturnAbstract  
One Year rr_AverageAnnualReturnYear01 25.87%
Five Years rr_AverageAnnualReturnYear05 13.81%
Ten Years rr_AverageAnnualReturnYear10 10.57%
SinceInception rr_AverageAnnualReturnSinceInception (0.38%) [2]
InceptionDate rr_AverageAnnualReturnInceptionDate
PSF Mid-Cap Growth Portfolio | Broad-Based Securities Market Index: S&P 500 Index (reflects no deduction for fees, expenses or taxes)  
Risk Return Abstract rr_RiskReturnAbstract  
One Year rr_AverageAnnualReturnYear01 26.29%
Five Years rr_AverageAnnualReturnYear05 15.69%
Ten Years rr_AverageAnnualReturnYear10 12.03%
SinceInception rr_AverageAnnualReturnSinceInception 6.74% [2]
InceptionDate rr_AverageAnnualReturnInceptionDate
PSF Mid-Cap Growth Portfolio | S&P MidCap 400 Index (former)(reflects no deduction for fees, expenses or taxes)  
Risk Return Abstract rr_RiskReturnAbstract  
One Year rr_AverageAnnualReturnYear01 16.44%
Five Years rr_AverageAnnualReturnYear05 12.62%
Ten Years rr_AverageAnnualReturnYear10 9.27%
SinceInception rr_AverageAnnualReturnSinceInception 2.39% [2]
InceptionDate rr_AverageAnnualReturnInceptionDate
[1] Any differences in total annual portfolio operating expenses shown in the table above and the expense ratio (after waivers and/or reimbursements) in the Portfolio’s Financial Highlights are attributable to changes in management fees, fee waivers and/or expense limitations occurring after the end of the most recent fiscal year.
[2] Since Inception returns for the Indexes are measured from the month-end closest to the inception date.