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Acquisitions (Details Textual) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Feb. 29, 2020 | Feb. 29, 2020 | Feb. 29, 2020 | Feb. 28, 2019 | Feb. 28, 2018 | Apr. 30, 2019
Business Acquisition [Line Items] |  |  |  |  |  |
Proceeds from Divestiture of Businesses, Net of Cash Divested |  |  | $ 23,584 | $ 0 | $ 0 |
Gain (Loss) on Disposition of Business |  | $ (18,600) | (18,632) | 0 | 0 |
Payments to Acquire Businesses, Net of Cash Acquired |  |  | 60,628 | 8,000 | 44,785 |
Acquisition related costs |  |  | 800 | $ 200 | $ 300 |
K2 [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Maximum Contingent Consideration, Liability |  |  |  |  |  | $ 2,000
2020 Acquisitions [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual |  |  | 27,900 |  |  |
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual |  |  | $ 2,600 |  |  |
Nuclear Logistics Business [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Proceeds from Divestiture of Businesses, Net of Cash Divested | $ 23,600 |  |  |  |  |
Gain (Loss) on Disposition of Business | $ (18,600) |  |  |  |  |

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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=116868678&loc=d3e1043-128460 + Details
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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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