Shareholder Report, Line Graph (Details) - USD ($) |
2 Months Ended | 14 Months Ended | 26 Months Ended | 38 Months Ended | 50 Months Ended | 62 Months Ended | 74 Months Ended | 86 Months Ended | |
|---|---|---|---|---|---|---|---|---|---|
Mar. 01, 2019 |
Apr. 30, 2019 |
Apr. 30, 2020 |
Apr. 30, 2021 |
Apr. 30, 2022 |
Apr. 30, 2023 |
Apr. 30, 2024 |
Apr. 30, 2025 |
Apr. 30, 2026 |
|
| Preferred Securities and Income SMA Shares | |||||||||
| Account Value [Line Items] | |||||||||
| Accumulated Value | $ 10,000 | $ 10,239 | $ 10,552 | $ 12,498 | $ 11,882 | $ 11,126 | $ 12,737 | $ 13,959 | $ 15,504 |
| ICE BofA U.S. All Capital Securities Index | |||||||||
| Account Value [Line Items] | |||||||||
| Line Graph and Table Measure Name | ICE BofA U.S. All Capital Securities Index | ||||||||
| Accumulated Value | 10,000 | 10,236 | 10,525 | 11,981 | 11,014 | 10,780 | 11,705 | 12,479 | $ 13,557 |
| Blended Benchmark | |||||||||
| Account Value [Line Items] | |||||||||
| Line Graph and Table Measure Name | Blended Benchmark1 | ||||||||
| Accumulated Value | $ 10,000 | $ 10,292 | $ 10,737 | $ 12,271 | $ 11,523 | $ 11,140 | $ 12,383 | $ 13,454 | $ 14,735 |