Investor A C Institutional Class R [Member] Annual Total Returns |
12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
|
| Investor A, C, Institutional and Class R | BLACKROCK CAPITAL APPRECIATION FUND, INC. | Investor A Shares | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 31.53% | 48.85% | (37.84%) | 20.69% | 40.09% | 31.85% | 1.74% | 32.59% | (0.36%) | 6.86% |