S000010797 [Member] Average Annual Total Returns	12 Months Ended	15 Months Ended	60 Months Ended	106 Months Ended	110 Months Ended	120 Months Ended	145 Months Ended	336 Months Ended
S000010797 [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	Dec. 31, 2025
Russell 1000® Growth Index (reflects no deductions for fees, expenses or taxes)
Prospectus [Line Items]
Average Annual Return, Percent	18.56%		15.32%			18.13%
Russell 1000® Index (reflects no deductions for fees, expenses or taxes)
Prospectus [Line Items]
Average Annual Return, Percent	17.37%		13.59%			14.59%
C000175686 [Member]
Prospectus [Line Items]
Average Annual Return, Percent	14.99%		9.26%			13.76%
Performance Inception Date					Oct. 26, 2016
C000253707 [Member]
Prospectus [Line Items]
Average Annual Return, Percent	15.57%		9.60%			14.08%
Performance Inception Date		Oct. 02, 2024
C000029874 [Member]
Prospectus [Line Items]
Average Annual Return, Percent	8.65%		8.24%			13.37%
Performance Inception Date								Dec. 31, 1997
C000029874 [Member] \| After Taxes on Distributions
Prospectus [Line Items]
Average Annual Return, Percent	6.99%		4.86%			10.23%
Performance Inception Date								Dec. 31, 1997
C000029874 [Member] \| After Taxes on Distributions and Sales
Prospectus [Line Items]
Average Annual Return, Percent	6.15%		5.58%			10.03%
Performance Inception Date								Dec. 31, 1997
C000029877 [Member]
Prospectus [Line Items]
Average Annual Return, Percent	15.57%		9.81%			14.33%
Performance Inception Date								Dec. 31, 1997
C000136868 [Member]
Prospectus [Line Items]
Average Annual Return, Percent	15.61%		9.87%			14.40%
Performance Inception Date							Dec. 11, 2013
C000171353 [Member]
Prospectus [Line Items]
Average Annual Return, Percent	15.65%		9.93%			14.41%
Performance Inception Date				Mar. 01, 2017