NICHOLAS FUND INC [Member] Average Annual Total Returns - NICHOLAS FUND INC |
12 Months Ended | 60 Months Ended | 120 Months Ended |
|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2024 |
Dec. 31, 2024 |
|
| Standard & Poor's 500 Index (reflects no deduction for fees, expenses or taxes) | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 25.02% | 14.53% | 13.10% |
| NICHOLAS FUND INC | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 16.71% | 14.05% | 11.31% |
| NICHOLAS FUND INC | After Taxes on Distributions | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 14.42% | 12.11% | 9.34% |
| NICHOLAS FUND INC | After Taxes on Distributions and Sales | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 11.28% | 10.90% | 8.69% |