Shareholder Report, Average Annual Return (Details)	12 Months Ended	58 Months Ended	60 Months Ended	120 Months Ended
Shareholder Report, Average Annual Return (Details)	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
Without Sales Load [Member] \| C000005436
Average Annual Return [Line Items]
Average Annual Return, Percent	14.58%		11.31%	10.66%
Without Sales Load [Member] \| C000005437
Average Annual Return [Line Items]
Average Annual Return, Percent	14.19%		10.96%	10.32%
Without Sales Load [Member] \| C000005438
Average Annual Return [Line Items]
Average Annual Return, Percent	13.97%		10.69%	10.04%
Without Sales Load [Member] \| C000166330
Average Annual Return [Line Items]
Average Annual Return, Percent	14.72%		11.43%	10.78%
Without Sales Load [Member] \| C000225772
Average Annual Return [Line Items]
Average Annual Return, Percent	15.37%	10.71%
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%		13.15%	14.29%
Russell 3000 Index
Average Annual Return [Line Items]
Average Annual Return, Percent	17.15%	12.52%
Russell 1000 Value Index
Average Annual Return [Line Items]
Average Annual Return, Percent	15.91%		11.33%	10.53%
Russell 1000 Value Index
Average Annual Return [Line Items]
Average Annual Return, Percent	15.91%		11.33%	10.53%
Russell 1000 Value Index
Average Annual Return [Line Items]
Average Annual Return, Percent	15.91%		11.33%	10.53%
Russell 1000 Value Index
Average Annual Return [Line Items]
Average Annual Return, Percent	15.91%		11.33%	10.53%
Russell 1000 Value Index
Average Annual Return [Line Items]
Average Annual Return, Percent	15.91%	10.25%