v3.26.1
Summary of significant accounting policies - Schedule of Concentrations of Risk (Details) - Customer Concentration Risk
12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Revenue | Target      
Product Information [Line Items]      
Concentration risk percentage (as a percent) 18.00% 23.00% 25.00%
Revenue | Walmart      
Product Information [Line Items]      
Concentration risk percentage (as a percent) 13.00% 16.00% 17.00%
Revenue | Amazon      
Product Information [Line Items]      
Concentration risk percentage (as a percent) 11.00% 12.00%  
Revenue | Sephora      
Product Information [Line Items]      
Concentration risk percentage (as a percent) 10.00%    
Revenue | Ulta Beauty      
Product Information [Line Items]      
Concentration risk percentage (as a percent)   12.00% 16.00%
Accounts Receivable | Target      
Product Information [Line Items]      
Concentration risk percentage (as a percent) 30.00% 29.00%  
Accounts Receivable | Walmart      
Product Information [Line Items]      
Concentration risk percentage (as a percent) 17.00% 20.00%  
Accounts Receivable | Amazon      
Product Information [Line Items]      
Concentration risk percentage (as a percent) 14.00% 12.00%