Investor A C Institutional And Class R [Member] Annual Total Returns |
12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2025 |
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 |
|
| Investor A, C, Institutional and Class R | BlackRock Mid-Cap Value Fund | Investor A | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 13.43% | 9.11% | 12.30% | (4.22%) | 26.07% | 6.85% | 29.24% | (9.74%) | 8.55% | 22.31% |