Concentrations of Risk (Details)	3 Months Ended
	Jun. 30, 2014 brand	Jun. 30, 2013
Concentration Risk [Line Items]
Number of third-party manufacturers	61	50
Sales | Product Concentration Risk
Concentration Risk [Line Items]
Concentration risk, percentage	42.00%	44.40%
Number of highest selling brands comprising group against which concentration risk is measured	5
Sales | Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk, percentage	19.20%	12.50%
Number of customers exceeding concentration risk benchmark	1	1
Sales | Supplier Concentration Risk
Concentration Risk [Line Items]
Concentration risk, percentage	84.50%	79.60%
Number of third-party manufacturers with long-term contracts	27	21
Accounts Receivable | Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk, percentage	22.40%