CLASS I [Member] Annual Total Returns |
12 Months Ended | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
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| CLASS I [Member] | NICHOLAS EQUITY INCOME FUND INC | CLASS I | ||||||||||||
| Prospectus [Line Items] | ||||||||||||
| Annual Return [Percent] | [1] | 9.95% | 7.87% | (6.88%) | 24.93% | 8.73% | 30.36% | (4.52%) | 12.41% | 12.60% | (3.69%) | |
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