Concentrations of Risk (Narrative) (Details) - manufacturer |
3 Months Ended | 6 Months Ended | ||
---|---|---|---|---|
Sep. 30, 2018 |
Sep. 30, 2017 |
Sep. 30, 2018 |
Sep. 30, 2017 |
|
Concentration Risk [Line Items] | ||||
Number of third-party manufacturers | 110 | 110 | 110 | 110 |
Sales | Customer Concentration Risk | Walmart | ||||
Concentration Risk [Line Items] | ||||
Concentration risk, percentage (percent) | 23.60% | 25.30% | 24.10% | 25.40% |
Sales | Customer Concentration Risk | Walgreens | ||||
Concentration Risk [Line Items] | ||||
Concentration risk, percentage (percent) | 10.00% | 8.70% | 9.30% | 8.90% |
Sales | Supplier Concentration Risk | ||||
Concentration Risk [Line Items] | ||||
Concentration risk, percentage (percent) | 60.00% | 79.50% | ||
Number of third-party manufacturers with long-term contracts | 34 | 45 | ||
Top 5 brands | Sales | Product Concentration Risk | ||||
Concentration Risk [Line Items] | ||||
Concentration risk, percentage (percent) | 44.70% | 40.80% | 43.50% | 42.00% |