Business acquisition amount of certain liabilities and payoff of notes payable.

No definition available.

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Namespace Prefix:	azz_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Business acquisition amount of maximum additional payment under purchase agreement.

+ References

No definition available.

+ Details

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Namespace Prefix:	azz_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Business Acquisition Amount of Payment Due at Close under Purchase Agreement

+ References

No definition available.

+ Details

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Namespace Prefix:	azz_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Goodwill, Portion Deductible

+ References

No definition available.

+ Details

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Namespace Prefix:	azz_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	duration

- Details

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Balance Type:	na
Period Type:	duration

- 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://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 25

-Paragraph 23

-URI http://asc.fasb.org/extlink&oid=34752592&loc=d3e1043-128460

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (c)(3)

-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of assets acquired at the acquisition date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4845-128472

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of liabilities assumed at the acquisition date.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 13

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

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Namespace Prefix:
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- Details

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- Details

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Namespace Prefix:
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- Details

Name:	us-gaap_BusinessAcquisitionAxis=azz_NuclearLogisticsIncorporatedMember
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- Details

Name:	us-gaap_BusinessAcquisitionAxis=azz_ZalkSteelMember
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- Details

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- Details

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- Details

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Acquisitions (Details Textual) (USD $)	12 Months Ended			0 Months Ended
Acquisitions (Details Textual) (USD $)	Feb. 28, 2015	Feb. 28, 2014	Feb. 28, 2013	Jun. 30, 2014	Mar. 29, 2013	Jun. 01, 2012	Oct. 01, 2012	Jun. 02, 2012	Jan. 02, 2013
Business Acquisition [Line Items]
Liabilities assumed				$ 300,000
Goodwill	279,074,000us-gaap_Goodwill	278,556,000us-gaap_Goodwill	171,886,000us-gaap_Goodwill
Purchase price of acquisition, net of cash	11,518,000	275,702,000	137,058,000
Zalk Steel [Member]
Business Acquisition [Line Items]
Goodwill				3,300,000
Purchase price of acquisition				10,500,000
Intangible assets acquired				3,400,000
Aquilex [Member]
Business Acquisition [Line Items]
Assets acquired								303,229,000
Goodwill								109,636,000
Acquisition related costs		5,400,000
Additional payment on performance					3,900,000
Purchase price of acquisition					275,700,000
Business Acquisition Amount of Payment Due at Close under Purchase Agreement					271,800,000
Intangible assets acquired								87,100,000
G3 Galvananizing Limited [Member]
Business Acquisition [Line Items]
Assets acquired									12,000,000
Liabilities assumed									3,100,000
Goodwill									4,200,000
Acquisition related costs		500,000
Nuclear Logistics Incorporated [Member]
Business Acquisition [Line Items]
Future contingent consideration		9,100,000						20,000,000
Assets acquired								107,298,000
Goodwill								32,323,000
Acquisition related costs			900,000
Certain liabilities payoff								3,800,000
Purchase price of acquisition						77,000,000
Intangible assets acquired								50,600,000
Galvcast Manufacturing Inc [Member]
Business Acquisition [Line Items]
Assets acquired							48,000,000
Liabilities assumed							900,000
Goodwill							15,700,000
Acquisition related costs		$ 300,000
Goodwill, deductible							75.00%
Customer Relationships [Member] \| Zalk Steel [Member]
Business Acquisition [Line Items]
Weighted average useful life	19 years
Customer Related Intangibles [Member] \| Aquilex [Member]
Business Acquisition [Line Items]
Weighted average useful life		14 years
Trade Names [Member] \| Zalk Steel [Member]
Business Acquisition [Line Items]
Weighted average useful life	19 years
Trade Names [Member] \| Aquilex [Member]
Business Acquisition [Line Items]
Weighted average useful life		19 years
Noncompete Agreements [Member] \| Zalk Steel [Member]
Business Acquisition [Line Items]
Weighted average useful life	5 years
Minimum [Member] \| Technology [Member] \| Aquilex [Member]
Business Acquisition [Line Items]
Weighted average useful life		3 years
Maximum [Member] \| Technology [Member] \| Aquilex [Member]
Business Acquisition [Line Items]
Weighted average useful life		9 years