Harris Oakmark International Portfolio Performance Management - Harris Oakmark International Portfolio |
Dec. 31, 2025 |
|---|---|
| Prospectus [Line Items] | |
| Bar Chart and Performance Table [Heading] | <span style="color:#000000;font-family:Times New Roman;font-size:11.5pt;font-weight:bold;">Past Performance</span> |
| Performance Narrative [Text Block] | The information below provides some indication of the risks of investing in the Portfolio by showing changes in the Portfolio’s performance from year to year and how the Portfolio’s average annual returns over time compare with those of a broad-based securities market index.Note that the results in the bar chart and table do not include the effect of Contract charges. If these Contract charges had been included, performance would have been lower. As with all mutual funds, past returns are not a prediction of future returns. |
| Performance Past Does Not Indicate Future [Text] | <span style="color:#000000;font-family:Times New Roman;font-size:11.5pt;"> As with all mutual funds, past returns are </span><span style="color:#000000;font-family:Times New Roman;font-size:11.5pt;">not a prediction of future returns.</span> |
| Performance Information Illustrates Variability of Returns [Text] | <span style="color:#000000;font-family:Times New Roman;font-size:11.5pt;">The information below provides some indication of the risks of investing in the Portfolio by showing changes in the Portfolio’s performance from year to year and how the Portfolio’s average annual returns over time compare with those of a broad-based securities market index.</span> |
| Bar Chart Does Not Reflect Sales Loads [Text] | <span style="color:#000000;font-family:Times New Roman;font-size:11.5pt;">Note that the results in the bar chart and table do not include the effect of Contract charges. If these Contract charges had been included, performance would have been lower.</span> |
| Bar Chart [Heading] | <span style="font-family:Times New Roman;font-size:10pt;font-weight:bold;">Year-by-Year Total Return for Class A Shares as of</span> <br/><span style="font-family:Times New Roman;font-size:10pt;font-weight:bold;">December 31 of Each Year</span> |
| Bar Chart Closing [Text Block] | Highest QuarterQ4 202031.48%Lowest QuarterQ1 2020-37.03% |
| Performance Table Heading | <span style="font-family:Times New Roman;font-size:10pt;font-weight:bold;">Average Annual Total Return as of December 31, 2025</span> |
| Class A | |
| Prospectus [Line Items] | |
| Highest Quarterly Return, Label [Optional Text] | <span style="color:#000000;font-family:Times New Roman;font-size:8pt;margin-left:0.0pt;">Highest Quarter</span> |
| Highest Quarterly Return | 31.48% |
| Highest Quarterly Return, Date | Dec. 31, 2020 |
| Lowest Quarterly Return, Label [Optional Text] | <span style="color:#000000;font-family:Times New Roman;font-size:8pt;margin-left:0.0pt;">Lowest Quarter</span> |
| Lowest Quarterly Return | (37.03%) |
| Lowest Quarterly Return, Date | Mar. 31, 2020 |