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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
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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

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