v3.25.4
Expense Example
Feb. 25, 2026
USD ($)
T. Rowe Price Blue Chip Growth Fund, Inc. - Investor Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 72
Expense Example, with Redemption, 3 Years 224
Expense Example, with Redemption, 5 Years 390
Expense Example, with Redemption, 10 Years 871
T. Rowe Price Blue Chip Growth Fund, Inc. - I Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 58
Expense Example, with Redemption, 3 Years 183
Expense Example, with Redemption, 5 Years 318
Expense Example, with Redemption, 10 Years 714
T. Rowe Price Blue Chip Growth Fund, Inc. - Advisor Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 98
Expense Example, with Redemption, 3 Years 306
Expense Example, with Redemption, 5 Years 531
Expense Example, with Redemption, 10 Years 1,178
T. Rowe Price Blue Chip Growth Fund, Inc. - R Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 123
Expense Example, with Redemption, 3 Years 384
Expense Example, with Redemption, 5 Years 665
Expense Example, with Redemption, 10 Years 1,466
T. Rowe Price Blue Chip Growth Fund, Inc. - Z Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 0
Expense Example, with Redemption, 3 Years 0
Expense Example, with Redemption, 5 Years 0
Expense Example, with Redemption, 10 Years $ 0