v3.25.2
Shareholder Report, Average Annual Return (Details)
 12 Months Ended 60 Months Ended 96 Months Ended 120 Months Ended
May 31, 2025
May 31, 2025
May 31, 2025
May 31, 2025
Without Sales Load [Member] | C000065113        
Average Annual Return [Line Items]        
Average Annual Return, Percent 4.41% (2.17%)   1.02%
Without Sales Load [Member] | C000065111        
Average Annual Return [Line Items]        
Average Annual Return, Percent 7.16% 7.26%   6.01%
Without Sales Load [Member] | C000112018        
Average Annual Return [Line Items]        
Average Annual Return, Percent 6.50% 6.37%   4.78%
Without Sales Load [Member] | C000012974        
Average Annual Return [Line Items]        
Average Annual Return, Percent 13.35% 13.41%   11.86%
Without Sales Load [Member] | C000188907        
Average Annual Return [Line Items]        
Average Annual Return, Percent 13.59% 13.68% 14.23%  
Without Sales Load [Member] | C000065110        
Average Annual Return [Line Items]        
Average Annual Return, Percent 3.34% 9.57%   7.49%
Without Sales Load [Member] | C000188908        
Average Annual Return [Line Items]        
Average Annual Return, Percent 3.54% 9.80% 8.91%  
Without Sales Load [Member] | C000065112        
Average Annual Return [Line Items]        
Average Annual Return, Percent 4.91% 1.13%   1.52%
Without Sales Load [Member] | C000153268        
Average Annual Return [Line Items]        
Average Annual Return, Percent 3.84% 1.00%   1.59%
Without Sales Load [Member] | C000153267        
Average Annual Return [Line Items]        
Average Annual Return, Percent 6.57% 8.68%   7.94%
Bloomberg US Aggregate Bond Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 7.03% (1.35%)   0.94%
Bloomberg Developed Markets Large & Mid Cap Total Return        
Average Annual Return [Line Items]        
Average Annual Return, Percent 14.20% 13.31%   10.44%
Bloomberg Developed Markets Large & Mid Cap Total Return        
Average Annual Return [Line Items]        
Average Annual Return, Percent 14.20% 13.31%   10.44%
Bloomberg US Large Cap Total Return Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 14.18% 15.84%   12.95%
S&P 500 Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 13.52% 15.94% 13.61%  
Bloomberg Developed Markets ex US Large & Mid Cap Total Return Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 4.85% 0.95%   0.47%
Bloomberg Developed Markets ex US Large & Mid Cap Total Return Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 4.85% 0.95% 0.59%  
Bloomberg US Aggregate Bond Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 7.03% (1.35%)   0.94%
Bloomberg US Aggregate Bond Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 7.03% (1.35%)   0.94%
Bloomberg World Large & Mid Cap Total Return Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 14.04% 12.26%   9.67%
Bloomberg Global Equity/Fixed Income 60/40 Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 11.42% 8.15%   6.80%
Dow Jones Moderate US Portfolio Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 9.82% 7.09%   5.92%
Bloomberg Global Equity/Fixed Income 50/50 Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 10.71% 6.55%   5.85%
S&P Global 1200 Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 13.92% 14.60%   10.45%
Bloomberg 1000 Growth Total Return Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 16.02% 16.02%   14.69%
S&P 500 Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 13.52% 15.94%   12.86%
Bloomberg 1000 Growth Total Return Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 16.02% 16.02% 15.94%  
Bloomberg US Large Cap Total Return Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 14.18% 15.84% 13.82%  
MSCI EAFE Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 13.92% 11.98%   6.49%
MSCI EAFE Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 13.92% 11.98% 7.19%  
Bloomberg US Aggregate 1-3 Year Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 5.86% 1.47%   1.76%
FTSE World BIG Bond Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 6.86% (1.61%)   0.87%
S&P Global 1200 Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 13.92% 14.60%   10.45%