v3.26.3
Form N-CSR Cover
12 Months Ended
Jul. 31, 2026
Shareholder Report [Line Items]  
Document Type N-CSR
Amendment Flag false
Registrant Name AMERICAN CENTURY GROWTH FUNDS, INC.
Entity Central Index Key 0001353176
Entity Investment Company Type N-1A
Document Period End Date Jul. 31, 2026
Shareholder Report Annual or Semi-Annual Annual Shareholder Report