S000010774 [Member] Average Annual Total Returns	12 Months Ended	15 Months Ended	60 Months Ended	120 Months Ended	151 Months Ended	239 Months Ended	351 Months Ended
S000010774 [Member] Average Annual Total Returns	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
Russell 3000® Index (reflects no deductions for fees, expenses or taxes)
Prospectus [Line Items]
Average Annual Return, Percent	17.15%		13.15%	14.29%
Bloomberg U.S. Aggregate Bond Index (reflects no deductions for fees, expenses or taxes)
Prospectus [Line Items]
Average Annual Return, Percent	7.30%		(0.36%)	2.01%
New Blended Benchmark [Member]
Prospectus [Line Items]
Average Annual Return, Percent	15.85%		7.61%	9.21%
Former Blended Benchmark [Member]
Prospectus [Line Items]
Average Annual Return, Percent	16.06%		7.94%	9.48%
C000129843 [Member]
Prospectus [Line Items]
Average Annual Return, Percent	17.29%		7.79%	8.97%
Performance Inception Date					Jun. 13, 2013
C000251871 [Member]
Prospectus [Line Items]
Average Annual Return, Percent	17.14%		7.50%	8.61%
Performance Inception Date		Oct. 02, 2024
C000029775 [Member]
Prospectus [Line Items]
Average Annual Return, Percent	10.18%		6.18%	7.94%
Performance Inception Date							Oct. 15, 1996
C000029775 [Member] \| After Taxes on Distributions
Prospectus [Line Items]
Average Annual Return, Percent	7.83%		3.96%	5.83%
Performance Inception Date							Oct. 15, 1996
C000029775 [Member] \| After Taxes on Distributions and Sales
Prospectus [Line Items]
Average Annual Return, Percent	7.03%		4.26%	5.74%
Performance Inception Date							Oct. 15, 1996
C000029777 [Member]
Prospectus [Line Items]
Average Annual Return, Percent	15.05%		6.64%	7.78%
Performance Inception Date							Oct. 15, 1996
C000029778 [Member]
Prospectus [Line Items]
Average Annual Return, Percent	16.61%		7.16%	8.33%
Performance Inception Date						Jan. 23, 2006
C000029779 [Member]
Prospectus [Line Items]
Average Annual Return, Percent	17.23%		7.72%	8.87%
Performance Inception Date							Oct. 15, 1996