Goldman Sachs Small Cap Equity Insights Fund Performance Management - Service Shares [Member] - Goldman Sachs Small Cap Equity Insights Fund	Dec. 31, 2025
Prospectus [Line Items]
Bar Chart and Performance Table [Heading]	<span style="color:#FFFFFF;font-family:Arial;font-size:7.5pt;margin-left:0.0pt;text-transform:uppercase;">Performance</span>
Performance Narrative [Text Block]	The bar chart and table below provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s Service Shares from year to year; and (b) how the average annual total returns of the Fund’s Service Shares compare to those of a regulatorily required broad-based securities market index (Russell 3000® Index) (the “Regulatory Benchmark”) and the Russell 2000® Index (the “Performance Benchmark”). The Performance Benchmark is generally more representative of the market sectors and/or types of investments in which the Fund invests or to which the Fund has exposure and which the Investment Adviser uses to measure the Fund’s performance. The Fund has included in the table below the performance of the Regulatory Benchmark, which represents a broader measure of market performance, to comply with regulatory requirements. For additional information about these benchmark indices, please see “Additional Performance and Benchmark Information” on page 6 of the Prospectus. The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. Performance reflects applicable fee waivers and/or expense limitations in effect during the periods shown. In addition, performance reflects Fund level expenses but does not reflect the fees and expenses associated with any variable annuity contract or variable life insurance policy that uses the Fund as an investment option for any contract or policy. Had performance reflected all of those fees and expenses, performance would have been reduced. Updated performance information is available at no cost at am.gs.com or by calling the phone number on the back cover of the Prospectus.
Performance Past Does Not Indicate Future [Text]	<span style="font-family:Times New Roman;font-size:9pt;">The Fund’s </span><span style="font-family:Times New Roman;font-size:9pt;">past performance is not necessarily an indication of how the Fund will perform in the future.</span>
Performance Information Illustrates Variability of Returns [Text]	<span style="font-family:Times New Roman;font-size:9pt;">The bar chart and table below provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s Service Shares from year to year; and (b) how the average annual total returns of the Fund’s Service Shares compare to those of a regulatorily required broad-based securities market index (Russell 3000</span><span style="font-family:Times New Roman;font-size:5.5pt;position:relative;top:-3.75pt;">®</span><span style="font-family:Times New Roman;font-size:9pt;"> Index) (the “Regulatory Benchmark”) and the Russell 2000</span><span style="font-family:Times New Roman;font-size:5.5pt;position:relative;top:-3.75pt;">®</span><span style="font-family:Times New Roman;font-size:9pt;"> Index (the “Performance Benchmark”). The Performance Benchmark is generally more representative of the market sectors and/or types of investments in which the Fund invests or to which the Fund has exposure and which the Investment Adviser uses to measure the Fund’s performance. The Fund has included in the table below the performance of the Regulatory Benchmark, which represents a broader measure of market performance, to comply with regulatory requirements. For additional information about these benchmark indices, please see “Additional Performance and Benchmark Information” on page 6 of the Prospectus. </span>
Bar Chart [Heading]	<span style="font-family:Arial;font-size:9pt;font-weight:bold;margin-left:24%;">CALENDAR YEAR</span>
Bar Chart Closing [Text Block]	During the periods shown in the chart above:ReturnsQuarter endedBest Quarter Return25.52%December 31, 2020Worst Quarter Return-32.85%March 31, 2020
Performance Table Heading	<span style="color:#FFFFFF;font-family:Arial;font-size:7.5pt;margin-left:6pt;text-transform:uppercase;">AVERAGE ANNUAL TOTAL RETURN</span><span style="font-family:Arial Narrow;font-size:6.5pt;font-weight:bold;margin-left:0.0pt;">For the period ended December 31, 2025</span>
Performance Table Narrative	Benchmark returns do not reflect any deductions for fees or expenses.
Index No Deduction for Fees, Expenses, or Taxes [Text]	<span style="color:#000000;font-family:Times New Roman;font-size:7.5pt;font-style:italic;">Benchmark returns do not reflect any deductions for fees or expenses.</span>
Performance Availability Website Address [Text]	<span style="font-family:Times New Roman;font-size:9pt;">am.gs.com</span>
Service Shares
Prospectus [Line Items]
Highest Quarterly Return, Label [Optional Text]	<span style="color:#000000;font-family:Arial Narrow;font-size:7.5pt;margin-left:0.0pt;">Best Quarter Return</span>
Highest Quarterly Return	25.52%
Highest Quarterly Return, Date	Dec. 31, 2020
Lowest Quarterly Return, Label [Optional Text]	<span style="color:#000000;font-family:Arial Narrow;font-size:7.5pt;margin-left:0.0pt;">Worst Quarter Return</span>
Lowest Quarterly Return	(32.85%)
Lowest Quarterly Return, Date	Mar. 31, 2020