Reportable Segments - Narrative (Details) - Segment sales - Customer concentration |
3 Months Ended | |
|---|---|---|
Oct. 31, 2020 |
Oct. 31, 2019 |
|
| Two customers | Life Sciences | ||
| Information as to operating segments | ||
| Concentration risk within segment (as a percent) | 48.30% | 45.70% |
| Three customers | Dental | ||
| Information as to operating segments | ||
| Concentration risk within segment (as a percent) | 41.20% | 43.50% |
| Three customers | Dialysis | ||
| Information as to operating segments | ||
| Concentration risk within segment (as a percent) | 50.80% | 46.10% |