S000021575 [Member] Average Annual Total Returns	12 Months Ended	15 Months Ended	60 Months Ended	120 Months Ended	158 Months Ended	219 Months Ended	252 Months Ended	339 Months Ended
S000021575 [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%
C000122689 [Member]
Prospectus [Line Items]
Average Annual Return, Percent	10.99%		6.02%	12.45%
Performance Inception Date					Nov. 08, 2012
C000254317 [Member]
Prospectus [Line Items]
Average Annual Return, Percent	10.86%		5.87%	12.29%
Performance Inception Date		Oct. 02, 2024
C000061818 [Member]
Prospectus [Line Items]
Average Annual Return, Percent	4.27%		4.37%	11.35%
Performance Inception Date						Sep. 28, 2007
C000061818 [Member] \| After Taxes on Distributions
Prospectus [Line Items]
Average Annual Return, Percent	(4.26%)		(1.17%)	5.84%
Performance Inception Date						Sep. 28, 2007
C000061818 [Member] \| After Taxes on Distributions and Sales
Prospectus [Line Items]
Average Annual Return, Percent	8.19%		2.67%	7.94%
Performance Inception Date						Sep. 28, 2007
C000061820 [Member]
Prospectus [Line Items]
Average Annual Return, Percent	10.46%		5.37%	11.74%
Performance Inception Date							Dec. 31, 2004
C000061821 [Member]
Prospectus [Line Items]
Average Annual Return, Percent	10.86%		5.87%	12.29%
Performance Inception Date								Oct. 01, 1997
C000122688 [Member]
Prospectus [Line Items]
Average Annual Return, Percent	10.97%		5.97%	12.40%
Performance Inception Date					Nov. 08, 2012