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

12 Months Ended

60 Months Ended

120 Months Ended

251 Months Ended

Dec. 31, 2025

Dec. 31, 2025

Dec. 31, 2025

Dec. 31, 2025

S&P 500® Index (reflects no deduction for fees, expenses, or taxes)

Prospectus [Line Items]

Average Annual Return, Percent

^[1]

17.88%

14.42%

14.82%

Performance Inception Date

^[1]

Jan. 31, 2005

Cboe S&P 500 BuyWrite Index (BXM)

Prospectus [Line Items]

Average Annual Return, Percent

^[2]

8.91%

9.33%

7.31%

Performance Inception Date

^[2]

Jan. 31, 2005

Prospectus [Line Items]

Average Annual Return, Percent

6.54%

6.58%

13.53%

Performance Inception Date

Jan. 31, 2005

Legacy Class | After Taxes on Distributions

Prospectus [Line Items]

Average Annual Return, Percent

4.81%

3.38%

10.12%

Performance Inception Date

Jan. 31, 2005

Legacy Class | After Taxes on Distributions and Sales

Prospectus [Line Items]

Average Annual Return, Percent

^[3]

5.08%

4.20%

10.07%

Performance Inception Date

^[3]

Jan. 31, 2005

[1]	Broad-based securities market index.
[2]	Additional 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.