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Restructuring and Impairment Charges - Schedule of Restructuring Costs (Details) - USD ($) $ in Thousands | 12 Months Ended
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Feb. 28, 2022 | Feb. 28, 2021 | Feb. 29, 2020
Restructuring Cost and Reserve [Line Items] |  |  |
Write down of assets held for sale to estimated sales price |  | $ 6,752 |
Write down of assets expected to be abandoned |  | 6,923 |
Loss on sale of subsidiaries | $ 552 | 3,080 | $ 18,632
Write down of excess inventory | 0 | 2,511 | 0
Costs associated with assets held for sale |  | 733 |
Total charges | $ (1,797) | 19,999 | $ 18,632
Metal Coatings | Operating Segments |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Write down of assets held for sale to estimated sales price |  | 2,652 |
Write down of assets expected to be abandoned |  | 6,923 |
Loss on sale of subsidiaries |  | 1,221 |
Write down of excess inventory |  | 0 |
Costs associated with assets held for sale |  | 0 |
Total charges |  | 10,796 |
Infrastructure Solutions | Operating Segments |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Write down of assets held for sale to estimated sales price |  | 4,100 |
Write down of assets expected to be abandoned |  | 0 |
Loss on sale of subsidiaries |  | 1,859 |
Write down of excess inventory |  | 2,511 |
Costs associated with assets held for sale |  | 733 |
Total charges |  | $ 9,203 |

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- Definition Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4582445-111684 + Details
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- Definition The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109226691&loc=d3e2921-110230 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123351718&loc=d3e2420-110228 + Details
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- Definition Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=116847112&loc=d3e4542-108314 + Details
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- Definition Amount, after cash payment, of expenses associated with exit or disposal activities pursuant to an authorized plan and expenses resulting from the write-down of assets. Excludes expenses related to a business combination, a discontinued operation or an asset retirement obligation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details
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