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Restructuring and Impairment Charges (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Nov. 30, 2020 | Aug. 31, 2020 | Nov. 30, 2020 | Nov. 30, 2019
Restructuring Cost and Reserve [Line Items] |  |  |  |
Proceeds from sale of subsidiaries, net |  |  | $ 12,444 | $ 0
Loss on disposal of business |  |  | 3,050 | $ 0
Write down of excess inventory |  |  | 2,511 |
Operating Segments | Infrastructure Solutions |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Loss on disposal of business |  |  | 1,859 |
Write down of excess inventory |  |  | 2,511 |
Galvabar |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Proceeds from sale of subsidiaries, net |  |  | 8,300 |
Loss on disposal of business |  |  | $ 1,200 |
Southern Mechanical Services |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Proceeds from sale of subsidiaries, net | $ 4,100 |  |  |
Loss on disposal of business | $ 1,900 |  |  |
Intangible impairment |  | $ 900 |  |

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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=118932676&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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