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NICHOLAS FUND INC [Member] Annual Fund Operating Expenses - NICHOLAS FUND INC - NICHOLAS FUND INC - NICHOLAS FUND INC
Mar. 31, 2025
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.65%
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.05%
Expenses (as a percentage of Assets) 0.70%