v3.26.1
Nationwide Bailard International Equities Fund Performance Management - Nationwide Bailard International Equities Fund
Oct. 31, 2025
Prospectus [Line Items]  
Bar Chart and Performance Table [Heading] <span style="color:#000000;font-family:Arial;font-size:12pt;font-weight:bold;">Performance</span>
Performance Narrative [Text Block] The following bar chart and table can help you evaluate the Fund’s potential risks. The bar chart shows how the Fund’s annual total returns have varied from year to year. The table compares the Fund’s average annual total returns to the returns of a broad-based securities market index. Remember, however, that past performance (before and after taxes) is not necessarily indicative of how the Fund will perform in the future. Updated performance information is available at no cost by visiting nationwide.com/mutualfundsor by calling 800-848-0920. Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.
Performance Past Does Not Indicate Future [Text] <span style="color:#000000;font-family:Arial;font-size:10pt;">Remember, however, that past performance (before and </span><span style="color:#000000;font-family:Arial;font-size:10pt;">after taxes) is not necessarily indicative of how the Fund will perform in the future.</span>
Performance Information Illustrates Variability of Returns [Text] <span style="color:#000000;font-family:Arial;font-size:10pt;">The bar chart shows how the Fund’s </span><span style="color:#000000;font-family:Arial;font-size:10pt;">annual total returns have varied from year to year. The table compares the Fund’s average annual total returns to the returns of a broad-based securities market index. </span>
Bar Chart Does Not Reflect Sales Loads [Text] <span style="color:#000000;font-family:Arial;font-size:10pt;">Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.</span>
Bar Chart [Heading] <span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;">Annual Total Returns</span><span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;margin-left:2.5pt;">– Class A Shares</span> <br/><span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;">(Years Ended December 31,)</span>
Bar Chart Closing [Text Block] Highest Quarter:16.89%Q4 2022Lowest Quarter:-23.17%Q1 2020Year-to-date total return:14.93%June 30, 2026
Performance Table Heading <span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;">Average Annual Total Returns</span> <br/><span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;">(For the Periods Ended December 31, 2025)</span>
Performance Table Narrative After-tax returns are shown for Class A shares only and will vary for other classes. After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect state and local taxes. Your actual after-tax return depends on your personal tax situation and may differ from what is shown here. After-tax returns are not relevant to investors in tax-advantaged arrangements, such as individual retirement accounts, 401(k) plans or certain other employer-sponsored retirement plans.
Performance Table Uses Highest Federal Rate <span style="color:#000000;font-family:Arial;font-size:10pt;">After-tax returns are calculated using </span><span style="color:#000000;font-family:Arial;font-size:10pt;">the historical highest individual federal marginal income tax rates and do not reflect state and local taxes.</span>
Performance Table Not Relevant to Tax Deferred <span style="color:#000000;font-family:Arial;font-size:10pt;">After-tax returns are </span><span style="color:#000000;font-family:Arial;font-size:10pt;">not relevant to investors in tax-advantaged arrangements, such as individual retirement accounts, 401(k) plans or certain other employer-sponsored retirement plans.</span>
Performance Table One Class of after Tax Shown [Text] <span style="color:#000000;font-family:Arial;font-size:10pt;">After-tax returns are shown for Class A shares only and will vary for other classes. </span>
Performance Availability Website Address [Text] <span style="color:#000000;font-family:Arial;font-size:10pt;">nationwide.com/mutualfunds</span>
Performance Availability Phone [Text] <span style="color:#000000;font-family:Arial;font-size:10pt;">800-848-0920</span>
Class A Shares  
Prospectus [Line Items]  
Year to Date Return, Label [Optional Text] <span style="font-family:Arial;font-size:10pt;font-weight:bold;margin-left:0.0pt;">Year-to-date total return:</span>
Bar Chart, Year to Date Return 14.93%
Bar Chart, Year to Date Return, Date Jun. 30, 2026
Highest Quarterly Return, Label [Optional Text] <span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;margin-left:0.0pt;">Highest Quarter:</span>
Highest Quarterly Return 16.89%
Highest Quarterly Return, Date Dec. 31, 2022
Lowest Quarterly Return, Label [Optional Text] <span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;margin-left:0.0pt;">Lowest Quarter:</span>
Lowest Quarterly Return (23.17%)
Lowest Quarterly Return, Date Mar. 31, 2020