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Average Annual Total Returns
 24 Months Ended 42 Months Ended 72 Months Ended 104 Months Ended 129 Months Ended 132 Months Ended
Jun. 28, 2025
Dec. 31, 2024
Dec. 31, 2024
Dec. 31, 2024
Dec. 31, 2024
Dec. 31, 2024
Dec. 31, 2024
Russell Midcap® Value Index (reflects no deduction for fees, expenses or taxes)              
Prospectus [Line Items]              
Average Annual Return, Label [Optional Text] Russell Midcap® Value Index(reflects no deduction for fees, expenses or taxes)            
Average Annual Return, Percent   13.07%   8.59%   8.39% 8.10%
Performance Inception Date Mar. 31, 2014            
Russell 1000 Total Return (reflects no deduction for fees, expenses or taxes)              
Prospectus [Line Items]              
Average Annual Return, Label [Optional Text] Russell 1000 Index(reflects no deduction for fees, expenses or taxes)            
Average Annual Return, Percent   24.51%   14.28%   13.01% 12.87%
Russell 2000® Total Return Index (reflects no deduction for fees, expenses or taxes)              
Prospectus [Line Items]              
Average Annual Return, Label [Optional Text] Russell 2000® Index(reflects no deduction for fees, expenses or taxes)            
Average Annual Return, Percent   11.54%   7.40% 9.37%    
Performance Inception Date Apr. 27, 2016            
Russell 2000® Value Index (reflects no deduction for fees, expenses or taxes)              
Prospectus [Line Items]              
Average Annual Return, Label [Optional Text] Russell 2000® Value Index(reflects no deduction for fees, expenses or taxes)            
Average Annual Return, Percent   8.05%   7.29% 8.58%    
Performance Inception Date Apr. 27, 2016            
MSCI Emerging Markets Index (Net USD) (reflects no deduction for fees, expenses or taxes)              
Prospectus [Line Items]              
Average Annual Return, Label [Optional Text] MSCI Emerging Markets Index Net (USD)(reflects no deduction for fees, expenses or taxes)            
Average Annual Return, Percent   7.50%   1.70%   3.21% 3.64%
Performance Inception Date Mar. 31, 2014            
MSCI Emerging Markets Value (Net USD) (reflects no deduction for fees, expenses or taxes)              
Prospectus [Line Items]              
Average Annual Return, Label [Optional Text] MSCI Emerging Markets Value Net (USD)(reflects no deduction for fees, expenses or taxes)            
Average Annual Return, Percent   4.51%   1.96%   2.30% 2.81%
Performance Inception Date Mar. 31, 2014            
MSCI WORLD ex USA Small Cap Value Index Net (reflects no deduction for fees, expenses or taxes)              
Prospectus [Line Items]              
Average Annual Return, Label [Optional Text] MSCI WORLD ex USA Small Cap Value Index Net(reflects no deduction for fees, expenses or taxes)            
Average Annual Return, Percent   2.95% 3.48% 3.37%      
Performance Inception Date Jul. 02, 2018            
MSCI WORLD ex USA Small Cap Index (reflects no deduction for fees, expenses or taxes)              
Prospectus [Line Items]              
Average Annual Return, Label [Optional Text] MSCI WORLD ex USA Small Cap Index(reflects no deduction for fees, expenses or taxes)            
Average Annual Return, Percent   2.76% 3.10% 2.87%      
Performance Inception Date Jul. 02, 2018            
MSCI WORLD ex USA IMI Index Net (USD)
(reflects no deduction for fees, expenses or taxes)              
Prospectus [Line Items]              
Performance Inception Date Jul. 02, 2018            
MSCI WORLD ex USA IMI Index Gross (USD)
(reflects no deduction for fees, expenses or taxes)              
Prospectus [Line Items]              
Performance Inception Date Jul. 02, 2018            
MSCI EAFE Value Index Net (reflects no deduction for fees, expenses or taxes)              
Prospectus [Line Items]              
Average Annual Return, Label [Optional Text] MSCI EAFE Value Index Net (USD)(reflects no deduction for fees, expenses or taxes)            
Average Annual Return, Percent   5.68% 4.69%        
Performance Inception Date Jun. 28, 2021            
MSCI EAFE Index Net (reflects no deduction for fees, expenses or taxes)              
Prospectus [Line Items]              
Average Annual Return, Label [Optional Text] MSCI EAFE Index Net (USD)(reflects no deduction for fees, expenses or taxes)            
Average Annual Return, Percent   3.82% 1.74%        
Performance Inception Date Jun. 28, 2021            
Pzena Mid Cap Value Fund Institutional Class              
Prospectus [Line Items]              
Average Annual Return, Label [Optional Text] Return Before Taxes            
Average Annual Return, Percent   1.12%   10.16%   8.47% 8.60%
Performance Inception Date Mar. 31, 2014            
Pzena Mid Cap Value Fund Institutional Class | After Taxes on Distributions              
Prospectus [Line Items]              
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions            
Average Annual Return, Percent   (2.83%)   7.50%   6.82% 6.97%
Pzena Mid Cap Value Fund Institutional Class | After Taxes on Distributions and Sales              
Prospectus [Line Items]              
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Fund Shares            
Average Annual Return, Percent   3.38%   7.83%   6.65% 6.80%
Pzena Mid Cap Value Fund Investor Class              
Prospectus [Line Items]              
Average Annual Return, Label [Optional Text] Return Before Taxes            
Average Annual Return, Percent   0.72%   9.76%   8.11% 8.24%
Performance Inception Date Mar. 31, 2014            
Pzena Small Cap Value Fund Investor Class              
Prospectus [Line Items]              
Average Annual Return, Label [Optional Text] Return Before Taxes            
Average Annual Return, Percent   1.68%   9.12% 8.43%    
Performance Inception Date Apr. 27, 2016            
Pzena Small Cap Value Fund Institutional Class              
Prospectus [Line Items]              
Average Annual Return, Label [Optional Text] Return Before Taxes            
Average Annual Return, Percent   1.97%   9.42% 8.74%    
Performance Inception Date Apr. 27, 2016            
Pzena Small Cap Value Fund Institutional Class | After Taxes on Distributions              
Prospectus [Line Items]              
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions            
Average Annual Return, Percent   0.31%   8.11% 7.52%    
Pzena Small Cap Value Fund Institutional Class | After Taxes on Distributions and Sales              
Prospectus [Line Items]              
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Fund Shares            
Average Annual Return, Percent   2.33%   7.29% 6.77%    
Pzena Emerging Markets Value Fund Investor Class              
Prospectus [Line Items]              
Average Annual Return, Label [Optional Text] Return Before Taxes            
Average Annual Return, Percent   4.18%   6.25%   4.12% 5.66%
Performance Inception Date Mar. 31, 2014            
Pzena Emerging Markets Value Fund Institutional Class              
Prospectus [Line Items]              
Average Annual Return, Label [Optional Text] Return Before Taxes            
Average Annual Return, Percent   4.62%   6.62%   4.45% 5.99%
Performance Inception Date Mar. 31, 2014            
Pzena Emerging Markets Value Fund Institutional Class | After Taxes on Distributions              
Prospectus [Line Items]              
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions            
Average Annual Return, Percent   2.65%   5.68%   3.87% 5.37%
Pzena Emerging Markets Value Fund Institutional Class | After Taxes on Distributions and Sales              
Prospectus [Line Items]              
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Fund Shares            
Average Annual Return, Percent   3.70%   5.13%   3.53% 4.80%
Pzena International Small Cap Value Fund Institutional Class              
Prospectus [Line Items]              
Average Annual Return, Label [Optional Text] Return Before Taxes            
Average Annual Return, Percent   5.37% 5.20% 8.03%      
Performance Inception Date Jul. 02, 2018            
Pzena International Small Cap Value Fund Institutional Class | After Taxes on Distributions              
Prospectus [Line Items]              
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions            
Average Annual Return, Percent   3.00% 4.35% 7.08%      
Pzena International Small Cap Value Fund Institutional Class | After Taxes on Distributions and Sales              
Prospectus [Line Items]              
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Fund Shares            
Average Annual Return, Percent   5.13% 4.11% 6.40%      
Pzena International Small Cap Value Fund Investor Class              
Prospectus [Line Items]              
Average Annual Return, Label [Optional Text] Return Before Taxes            
Average Annual Return, Percent   5.15% 4.92% 7.73%      
Performance Inception Date Jul. 02, 2018            
Pzena International Value Class Instutitional Class              
Prospectus [Line Items]              
Average Annual Return, Label [Optional Text] Return Before Taxes            
Average Annual Return, Percent   6.40% 3.36%        
Performance Inception Date Jun. 28, 2021            
Pzena International Value Class Instutitional Class | After Taxes on Distributions              
Prospectus [Line Items]              
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions            
Average Annual Return, Percent   5.22% 2.86%        
Pzena International Value Class Instutitional Class | After Taxes on Distributions and Sales              
Prospectus [Line Items]              
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Fund Shares            
Average Annual Return, Percent   5.24% 2.79%        
Pzena International Value Fund Investor Class              
Prospectus [Line Items]              
Average Annual Return, Label [Optional Text] Return Before Taxes            
Average Annual Return, Percent   6.12% 3.11%        
Performance Inception Date Jun. 28, 2021