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Inventories - Additional Information (Detail) - USD ($) $ in Millions | 12 Months Ended
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Feb. 28, 2023 | Feb. 28, 2022 | Feb. 28, 2021
Inventory Disclosure [Abstract] |  |  |
Excess of current costs at FIFO over LIFO stated values | $ 6.7 | $ 5.9 |
Amount of valuation reserve for excess and obsolete inventory | 1.6 | 1.5 |
Decrease in cost of sales | $ 0.3 | $ 0.9 | $ 0.1

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- Definition Decrease in cost of sales as result of liquidation of LIFO inventory quantities. + References No definition available. + Details
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- Definition Inventory valuation reserves for excess and obsolete inventory. + References No definition available. + Details
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- Definition The excess of replacement or current cost over the stated LIFO (last in first out) inventory value when the LIFO inventory method is utilized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(c)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- References No definition available. + Details
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