- Costs Net of Billings By Balance Sheet Location (Details) (USD $) In Thousands, unless otherwise specified	Feb. 28, 2015	Feb. 28, 2014
Contractors [Abstract]
Cost and estimated earnings in excess of billings on uncompleted contracts	$ 33,676	$ 27,222
Billings in excess of costs and estimated earnings on uncompleted contracts	(4,674)us-gaap_BillingsInExcessOfCost	(3,018)us-gaap_BillingsInExcessOfCost
Total costs net of billings	$ 29,002azz_CostsInExcessOfBillingsNet	$ 24,204azz_CostsInExcessOfBillingsNet

Amount of receivable reflecting the cost incurred on uncompleted contracts in excess of related billings.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 605

-SubTopic 35

-Section 45

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6802688&loc=d3e57807-111642

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 605

-SubTopic 35

-Section 45

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=6802688&loc=d3e57795-111642

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.3(c)(3))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 912

-SubTopic 310

-Section 45

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-URI http://asc.fasb.org/extlink&oid=6471842&loc=d3e55302-109406

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 3

-Subparagraph c(2), c(3), c(4)

-Article 5

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