| Shareholder Report, Line Graph (Details) - USD ($) | 11 Months Ended | 12 Months Ended | 23 Months Ended | 35 Months Ended | 47 Months Ended | 59 Months Ended | 71 Months Ended | |
|---|---|---|---|---|---|---|---|---|
| Sep. 26, 2019 | Aug. 31, 2020 | Aug. 31, 2025 | Aug. 31, 2021 | Aug. 31, 2022 | Aug. 31, 2023 | Aug. 31, 2024 | Aug. 31, 2025 | |
| C000214506 [Member] | ||||||||
| Account Value [Line Items] | ||||||||
| Line Graph and Table Measure Name | Institutional Shares | |||||||
| Accumulated Value | $ 10,000 | $ 10,629 | $ 11,497 | $ 9,932 | $ 10,671 | $ 12,044 | $ 12,917 | |
| C000214509 [Member] | ||||||||
| Account Value [Line Items] | ||||||||
| Line Graph and Table Measure Name | Class R6 Shares | |||||||
| Accumulated Value | 10,000 | 10,629 | 11,496 | 9,930 | 10,686 | 12,066 | 12,945 | |
| Bloomberg Global Aggregate Index [Member] | ||||||||
| Account Value [Line Items] | ||||||||
| Line Graph and Table Measure Name | Bloomberg Global Aggregate Index | |||||||
| Accumulated Value | 10,000 | 10,653.547 | 10,708.84317 | 8,822.859539 | 8,814.626929 | 9,422.714545 | 9,749.722315 | |
| ICE BofA Global High Yield Constrained USD Hedged Index [Member] | ||||||||
| Account Value [Line Items] | ||||||||
| Line Graph and Table Measure Name | ICE BofA Global High Yield Constrained USD Hedged Index | |||||||
| Accumulated Value | 10,000 | 10,381.757 | 11,370.01514 | 9,924.466659 | 10,657.06399 | 12,084.39548 | 13,117.43728 | |
| Lipper Global High Yield Funds [Member] | ||||||||
| Account Value [Line Items] | ||||||||
| Line Graph and Table Measure Name | Lipper Global High Yield Funds | |||||||
| Accumulated Value | $ 10,000 | $ 10,159.15 | $ 11,172.27123 | $ 9,909.704034 | $ 10,587.7458 | $ 11,872.13466 | $ 12,785.26802 |