Shareholder Report, Line Graph (Details) - USD ($) |
8 Months Ended | 12 Months Ended | 20 Months Ended | 32 Months Ended | 44 Months Ended | 56 Months Ended | 68 Months Ended | 80 Months Ended | 92 Months Ended | 104 Months Ended | 116 Months Ended | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Oct. 05, 2015 |
May 31, 2016 |
May 31, 2025 |
May 31, 2017 |
May 31, 2018 |
May 31, 2019 |
May 31, 2020 |
May 31, 2021 |
May 31, 2022 |
May 31, 2023 |
May 31, 2024 |
May 31, 2025 |
|
| C000160936 [Member] | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | Institutional Shares | |||||||||||
| Accumulated Value | $ 10,000 | $ 10,558 | $ 12,496 | $ 14,588 | $ 14,931 | $ 16,759 | $ 24,389 | $ 23,687 | $ 24,013 | $ 31,042 | $ 34,721 | |
| C000160934 [Member] | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | Investor A Shares (with sales charge) | |||||||||||
| C000160935 [Member] | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | Investor C Shares (with sales charge) | |||||||||||
| C000166019 [Member] | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | Class K Shares | |||||||||||
| Accumulated Value | 10,000 | 10,558 | 12,508 | 14,593 | 14,956 | 16,792 | 24,444 | 23,761 | 24,101 | 31,163 | 34,871 | |
| Russell 1000 Index [Member] | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | Russell 1000® Index | |||||||||||
| Accumulated Value | $ 10,000 | $ 10,648 | $ 12,509 | $ 14,334 | $ 14,831 | $ 16,691 | $ 23,811 | $ 23,167 | $ 23,734 | $ 30,381 | $ 34,553 |