Legacy Class [Member] Average Annual Total Returns - Legacy Class

12 Months Ended

60 Months Ended

120 Months Ended

383 Months Ended

Dec. 31, 2025

Dec. 31, 2025

Dec. 31, 2025

Dec. 31, 2025

Russell 2500® Index (reflects no deductions for fees, expenses or taxes)

Prospectus [Line Items]

Average Annual Return, Percent

^[1]

11.91%

7.26%

10.40%

Performance Inception Date

Feb. 10, 1994

Russell 2500® Value Index (reflects no deduction for fees, expenses or taxes)

Prospectus [Line Items]

Average Annual Return, Percent

^[1]

12.73%

10.02%

9.72%

Performance Inception Date

Feb. 10, 1994

Russell 3000® Index (reflects no deductions for fees, expenses or taxes)

Prospectus [Line Items]

Average Annual Return, Percent

^[2]

17.15%

13.15%

14.29%

Performance Inception Date

Feb. 10, 1994

Legacy Class

Prospectus [Line Items]

Average Annual Return, Percent

17.31%

8.68%

12.09%

Performance Inception Date

Feb. 10, 1994

Legacy Class | After Taxes on Distributions

Prospectus [Line Items]

Average Annual Return, Percent

13.99%

6.36%

9.71%

Performance Inception Date

Feb. 10, 1994

Legacy Class | After Taxes on Distributions and Sales

Prospectus [Line Items]

Average Annual Return, Percent

^[3]

12.35%

6.50%

9.37%

Performance Inception Date

Feb. 10, 1994

[1]	Additional index.
[2]	Broad-based securities market index.
[3]	The Fund’s returns after taxes on distributions and sale of Fund shares may be higher than its returns after taxes on distributions because it includes the effect of a tax benefit an investor may receive resulting from the capital losses that would have been incurred on the sale of the shares.