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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Summary of Significant Accounting Policies and Related Information - Inventory and Cost of Goods Sold (Details) - USD ($) $ in Millions	12 Months Ended
	Feb. 29, 2024	Feb. 28, 2023	Feb. 28, 2022
Summary of significant accounting policies
General and administrative expenses charged to inventory	$ 23.4	$ 22.9	$ 26.0
General and administrative expenses directly attributable to the procurement of inventory included in inventory balances	$ 8.9	$ 11.7
Cost of goods sold manufactured by vendors \| Supplier concentration risk \| Vendors in Far East
Summary of significant accounting policies
Concentration risk percentage	79.00%	87.00%	88.00%
Cost of goods sold manufactured by vendors \| Supplier concentration risk \| Top two manufacturers
Summary of significant accounting policies
Concentration risk percentage	19.00%	13.00%	16.00%
Cost of goods sold manufactured by vendors \| Supplier concentration risk \| Top five suppliers
Summary of significant accounting policies
Concentration risk percentage	33.00%	29.00%	36.00%
Cost of goods sold manufactured by vendors \| Supplier concentration risk \| Two Vendors Located in China
Summary of significant accounting policies
Concentration risk percentage		6.00%
Cost of goods sold manufactured by vendors \| Supplier concentration risk \| One Vendor Located in China
Summary of significant accounting policies
Concentration risk percentage			9.00%
Cost of goods sold manufactured by vendors \| Supplier concentration risk \| Vendor located in Mexico
Summary of significant accounting policies
Concentration risk percentage	12.00%	7.00%	7.00%
Cost of goods sold manufactured by vendors \| Supplier concentration risk \| Vendor One Located in China
Summary of significant accounting policies
Concentration risk percentage	7.00%
Cost of goods sold manufactured by vendors \| Supplier concentration risk \| Vendor Two Located in China
Summary of significant accounting policies
Concentration risk percentage	5.00%