Basis of Presentation (Notes)	6 Months Ended
Aug. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	The Company and Basis of Presentation AZZ Inc. (“AZZ”, the “Company”, "our" or “we”) was established in 1956 and incorporated under the laws of the state of Texas. The Company is a global provider of metal coating services, welding solutions, specialty electrical equipment and highly engineered services to the power generation, transmission, distribution, refining and industrial markets. The Company has two distinct operating segments: the Energy segment and Metal Coatings segment. AZZ Energy is dedicated to delivering safe and reliable transmission of power from generation sources to end customers, and automated weld overlay solutions for corrosion and erosion mitigation to critical infrastructure in the energy markets worldwide. AZZ Metal Coatings is a leading provider of metal finishing solutions for corrosion protection, including hot dip galvanizing to the North American steel fabrication industry. Presentation The accompanying condensed consolidated balance sheet as of February 28, 2018, which was derived from audited financial statements, and the unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial information and in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete consolidated financial statements. These financial statements should be read in conjunction with the audited financial statements and related notes for the fiscal year ended February 28, 2018, included in the Company’s Annual Report on Form 10-K covering such period. Our fiscal year ends on the last day of February and is identified as the fiscal year for the calendar year in which it ends. For example, the fiscal year ended February 28, 2019 is referred to as fiscal 2019. In the opinion of management, the accompanying unaudited consolidated financial statements include all adjustments, consisting only of normal recurring adjustments, which are necessary to present fairly the financial position of the Company as of August 31, 2018, the results of its operations for the three and six months ended August 31, 2018 and 2017, and cash flows for the six months ended August 31, 2018 and 2017. These interim results are not necessarily indicative of results for a full year. Accounting Standards Recently Adopted On March 1, 2018, the Company adopted Accounting Standards Update ("ASU") No. 2014-09, Revenue from Contracts with Customers (Topic 606) and the related amendments ("ASC 606") using the modified retrospective method applied to those contracts which were not completed as of February 28, 2018. Results for operating periods beginning on or after March 1, 2018 are presented under ASC 606, while prior period amounts have not been adjusted and continue to be reported in accordance with the accounting standards in effect for those periods. However, for the three and six months ended August 31, 2018, the impact of applying ASC 606 as opposed to applying legacy accounting guidance did not result in a significant change to reported revenues or costs of revenues. Accordingly, no reconciliation has been provided to show the difference between applying ASC 606 and legacy guidance for the three and six months ended August 31, 2018. In addition, there was no cumulative effect adjustment to the beginning retained earnings on March 1, 2018 related to the adoption. See Note 2 for a description of the Company's accounting policy resulting from the adoption of ASC 606. On March 1, 2018, the Company adopted ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments, which clarifies the presentation and classification of certain cash receipts and cash payments in the statement of cash flows. The adoption did not have a material impact on the Company's consolidated statements of cash flows. Recently Issued Accounting Pronouncements In February 2016, the Financial Accounting Standards Board ("FASB") issued ASU 2016-02, Leases (Topic 842). Under the new guidance, a lessee will be required to recognize assets and liabilities for all leases with lease terms of more than 12 months. Consistent with current GAAP, the recognition, measurement, and presentation of expenses and cash flows arising from a lease by a lessee primarily will depend on its classification as a finance or operating lease. This ASU will be effective for the Company in the first quarter of its fiscal year 2020 and early adoption is permitted. The ASU requires adoption based upon a modified retrospective transition approach. The Company has not yet determined whether it will elect early adoption and is currently evaluating the impact of the adoption of this standard to its consolidated financial statements and related disclosures. In particular, the Company has made progress in assessing its portfolio of leases for accounting and disclosure purposes. To address the new standard's requirements, the Company is also in the process of assessing the design of the future lease accounting procedures and related internal controls, selecting and implementing lease accounting software, and finalizing policies, including the election of any practical expedients permitted by the standard. While the Company has not yet completed its evaluation of the financial statement impact of the new lease accounting standard, the Company expects to recognize right of use assets and lease liabilities for its operating leases in its consolidated balance sheets upon adoption and thereafter.

The Company and Basis of Presentation

AZZ Inc. (“AZZ”, the “Company”, "our" or “we”) was established in 1956 and incorporated under the laws of the state of Texas. The Company is a global provider of metal coating services, welding solutions, specialty electrical equipment and highly engineered services to the power generation, transmission, distribution, refining and industrial markets. The Company has two distinct operating segments: the Energy segment and Metal Coatings segment. AZZ Energy is dedicated to delivering safe and reliable transmission of power from generation sources to end customers, and automated weld overlay solutions for corrosion and erosion mitigation to critical infrastructure in the energy markets worldwide. AZZ Metal Coatings is a leading provider of metal finishing solutions for corrosion protection, including hot dip galvanizing to the North American steel fabrication industry.

Presentation

The accompanying condensed consolidated balance sheet as of February 28, 2018, which was derived from audited financial statements, and the unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial information and in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete consolidated financial statements. These financial statements should be read in conjunction with the audited financial statements and related notes for the fiscal year ended February 28, 2018, included in the Company’s Annual Report on Form 10-K covering such period.

Our fiscal year ends on the last day of February and is identified as the fiscal year for the calendar year in which it ends. For example, the fiscal year ended February 28, 2019 is referred to as fiscal 2019.

In the opinion of management, the accompanying unaudited consolidated financial statements include all adjustments, consisting only of normal recurring adjustments, which are necessary to present fairly the financial position of the Company as of August 31, 2018, the results of its operations for the three and six months ended August 31, 2018 and 2017, and cash flows for the six months ended August 31, 2018 and 2017. These interim results are not necessarily indicative of results for a full year.

Accounting Standards Recently Adopted

On March 1, 2018, the Company adopted Accounting Standards Update ("ASU") No. 2014-09, Revenue from Contracts with Customers (Topic 606) and the related amendments ("ASC 606") using the modified retrospective method applied to those contracts which were not completed as of February 28, 2018. Results for operating periods beginning on or after March 1, 2018 are presented under ASC 606, while prior period amounts have not been adjusted and continue to be reported in accordance with the accounting standards in effect for those periods. However, for the three and six months ended August 31, 2018, the impact of applying ASC 606 as opposed to applying legacy accounting guidance did not result in a significant change to reported revenues or costs of revenues. Accordingly, no reconciliation has been provided to show the difference between applying ASC 606 and legacy guidance for the three and six months ended August 31, 2018. In addition, there was no cumulative effect adjustment to the beginning retained earnings on March 1, 2018 related to the adoption. See Note 2 for a description of the Company's accounting policy resulting from the adoption of ASC 606.

On March 1, 2018, the Company adopted ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments, which clarifies the presentation and classification of certain cash receipts and cash payments in the statement of cash flows. The adoption did not have a material impact on the Company's consolidated statements of cash flows.

Recently Issued Accounting Pronouncements

In February 2016, the Financial Accounting Standards Board ("FASB") issued ASU 2016-02, Leases (Topic 842). Under the new guidance, a lessee will be required to recognize assets and liabilities for all leases with lease terms of more than 12 months. Consistent with current GAAP, the recognition, measurement, and presentation of expenses and cash flows arising from a lease by a lessee primarily will depend on its classification as a finance or operating lease. This ASU will be effective for the Company in the first quarter of its fiscal year 2020 and early adoption is permitted. The ASU requires adoption based upon a modified retrospective transition approach. The Company has not yet determined whether it will elect early adoption and is currently evaluating the impact of the adoption of this standard to its consolidated financial statements and related disclosures. In particular, the Company has made progress in assessing its portfolio of leases for accounting and disclosure purposes. To address the new standard's requirements, the Company is also in the process of assessing the design of the future lease accounting procedures and related internal controls, selecting and implementing lease accounting software, and finalizing policies, including the election of any practical expedients permitted by the standard. While the Company has not yet completed its evaluation of the financial statement impact of the new lease accounting standard, the Company expects to recognize right of use assets and lease liabilities for its operating leases in its consolidated balance sheets upon adoption and thereafter.