Discontinued Operations - Depreciation, Amortization, Capital Expenditures, and Significant Operating and Investing Noncash Items of the Discontinued Operations (Details) - USD ($) $ in Thousands		12 Months Ended
Sep. 30, 2022	Feb. 28, 2023	Feb. 28, 2022	Feb. 28, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on sale of property, plant and equipment		$ 1,032	$ (666)	$ (183)
Write down of assets held for sale to estimated sales price				3,591
Discontinued Operations, Disposed of by Sale \| AZZ Infrastructure Solutions
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Amortization and depreciation		7,279	12,584	12,508
Purchase of property, plant and equipment		4,831	4,815	9,901
Non-cash loss on disposal of discontinued operations	$ 159,900	159,910	0	0
Loss on disposal group held for sale		0	(1,797)	0
Loss on sale of property, plant and equipment		0	147	36
Write down of assets held for sale to estimated sales price		$ 0	$ 0	$ 3,161

Gain (Loss) on Disposal Group Held For Sale, Discontinued Operations

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- Definition

Purchase of Property, Plant and Equipment, Discontinued Operations

+ References

No definition available.

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- Definition

Amount of deprecation and amortization expense attributable to property, plant and equipment and intangible assets of discontinued operations.

+ References

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- Definition

Amount before tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

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- Definition

Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.

+ References

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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).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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