v3.25.4
Shareholder Report, Average Annual Return (Details)
 12 Months Ended 58 Months Ended 60 Months Ended 120 Months Ended
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Without Sales Load [Member] | C000005435        
Average Annual Return [Line Items]        
Average Annual Return, Percent 14.66%   10.85% 12.65%
Without Sales Load [Member] | C000012104        
Average Annual Return [Line Items]        
Average Annual Return, Percent 14.38%   10.56% 12.36%
Without Sales Load [Member] | C000166314        
Average Annual Return [Line Items]        
Average Annual Return, Percent 14.83%   11.00% 12.80%
Without Sales Load [Member] | C000225815        
Average Annual Return [Line Items]        
Average Annual Return, Percent 15.40% 11.58%    
Russell 3000 Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 17.15%   13.15% 14.29%
Russell 3000 Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 17.15%   13.15% 14.29%
Russell 3000 Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 17.15%   13.15% 14.29%
Russell 3000 Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 17.15% 12.52%    
S&P 500 Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 17.88%   14.42% 14.82%
S&P 500 Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 17.88%   14.42% 14.82%
S&P 500 Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 17.88%   14.42% 14.82%
S&P 500 Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent 17.88% 14.09%