Average Annual Total Returns - NICHOLAS FUND INC |
12 Months Ended | 60 Months Ended | 120 Months Ended |
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
|
| Standard & Poor's 500 Index (reflects no deduction for fees, expenses or taxes) | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 17.88% | 14.42% | 14.82% |
| NICHOLAS FUND INC | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 4.47% | 11.14% | 12.13% |
| NICHOLAS FUND INC | After Taxes on Distributions | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 2.30% | 9.16% | 10.07% |
| NICHOLAS FUND INC | After Taxes on Distributions and Sales | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 4.14% | 8.58% | 9.47% |