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Summary of Significant Accounting Policies and Related Information - Revenue Recognition and Costs and Expenses (Details) - USD ($)
$ in Thousands
12 Months Ended
Feb. 29, 2024
Feb. 28, 2023
Feb. 28, 2022
Product Liability Contingency [Line Items]      
Customer incentives in SG&A $ 44,700 $ 40,200 $ 39,000
Advertising costs in SG&A 106,800 98,500 96,400
Research and development expenses 56,500 47,800 54,000
Shipping and handling expenses in SG&A $ 1,056,390 1,173,316 1,270,168
Minimum      
Product Liability Contingency [Line Items]      
Term of allowable sales returns 1 year    
Maximum      
Product Liability Contingency [Line Items]      
Term of allowable sales returns 5 years    
Shipping and Handling      
Product Liability Contingency [Line Items]      
Shipping and handling expenses in SG&A $ 156,700 $ 162,000 $ 173,400