Basis of Presentation	9 Months Ended
Nov. 30, 2017
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. We are a global provider of galvanizing services, welding solutions, specialty electrical equipment and highly engineered services to the power generation, transmission, distribution, refining and industrial markets. We have 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. As of March 1, 2017, our Galvanizing Segment was rebranded to the Metal Coatings Segment to more closely align the description of the segment with its current offerings and served markets. There have been no changes to the underlying information reported under this operating segment for prior periods, however, the new description will be included in the operating results for future filings and include the new powder coating offerings for the current and future periods. Presentation The accompanying condensed consolidated balance sheet as of February 28, 2017, 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, 2017, included in the Company’s Annual Report on Form 10-K/A 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, 2018 is referred to as fiscal 2018. 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 November 30, 2017, the results of its operations for the three and nine months ended November 30, 2017 and 2016, and cash flows for the nine months ended November 30, 2017 and 2016. These interim results are not necessarily indicative of results for a full year. Accounting Standards Recently Adopted In November 2015, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2015-17, Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes. ASU 2015-17 simplifies the presentation of deferred taxes in a classified statement of financial position and was adopted by the Company on March 1, 2017. As a result of the adoption, the Company is required to offset deferred tax liabilities and assets, as well as any related valuation allowance, and present as a single non-current amount. However, the Company shall not offset deferred tax liabilities and assets attributable to different tax-paying components of the entity or to different tax jurisdictions. The adoption was on a prospective basis and therefore had no impact on the prior year. Recently Issued Accounting Pronouncements In January 2017, the FASB issued ASU No. 2017-04, Intangibles-Goodwill and Other Topics (Topic 350)-Simplifying the Test for Goodwill Impairment. This guidance simplifies the measurement of goodwill by eliminating the Step 2 impairment test. The new guidance requires companies to perform the goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. The amendment is required to be adopted prospectively. Early adoption is permitted for goodwill impairment tests performed on testing dates after January 1, 2017. The Company elected to adopt the guidance early effective for its annual goodwill impairment test performed in the fourth quarter of fiscal year 2018 and the adoption did not have a material impact on its consolidated financial statements. In August 2016, the FASB issued 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 Company will adopt the new standard effective in the first quarter of fiscal year 2019 and the adoption is not expected to have a material impact on its consolidated statements of cash flows. In February 2016, the 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 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 selected a transition method, has not yet determined whether it will elect early adoption and is currently evaluating the impact of the adoption of this standard on its consolidated financial statements and related disclosures. In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers: Topic 606 ("ASU 2014-09") which supersedes the revenue recognition requirements in ASC 605, Revenue Recognition. The core principle of ASU 2014-09 is to recognize revenue when promised goods or services are transferred to customers in an amount that reflects the consideration that is expected to be received for those goods or services. The standard will be effective for the Company beginning in fiscal 2019 and provides the option to adopt the guidance on a full retrospective basis or a modified retrospective basis. The Company has substantially completed its assessment of the impacts that the standard will have on its financial statements, and determined that the adoption is not expected to have a significant impact on its results of operations, cash flows, or financial position. Based on the Company’s evaluation process completed and review of its contracts with customers, the timing and amount of revenue recognized under the new standard is generally consistent with its revenue recognition policy under previous guidance. For its Metal Coatings segment, the Company will recognize revenue over time as the metal coating is applied to the customer owned material while revenue was recognized at the completion of the service under the prior guidance. However, the change is not expected to significantly impact the timing of revenue recognition except for uncompleted jobs at the end of each quarter. For its Energy segment, the Company will recognize revenues for custom built products over time if the goods do not have an alternative use to the Company and the Company has an unconditional right to payment for work completed to date plus the applicable margin. This is generally consistent with the revenue recognition pattern under the prior guidance, however the Company continues to monitor its contracts to ensure that it has an unconditional right to payment and, in the circumstances when it does not, per the guidance, it will recognize revenues at a point-in-time upon transfer of the good to the customer. For bespoke services within its Energy segment, the Company will continue to recognize revenues over time as the services are rendered, and for off-the-shelf products, the Company will continue to recognize revenue at a point-in-time upon the transfer of the goods to the customer. The Company will adopt the new standard effective in the first quarter of fiscal year 2019, using the modified retrospective approach, and will expand its consolidated financial statement disclosures in order to comply with the new standard.

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. We are a global provider of galvanizing services, welding solutions, specialty electrical equipment and highly engineered services to the power generation, transmission, distribution, refining and industrial markets. We have 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.

As of March 1, 2017, our Galvanizing Segment was rebranded to the Metal Coatings Segment to more closely align the description of the segment with its current offerings and served markets. There have been no changes to the underlying information reported under this operating segment for prior periods, however, the new description will be included in the operating results for future filings and include the new powder coating offerings for the current and future periods.

Presentation

The accompanying condensed consolidated balance sheet as of February 28, 2017, 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, 2017, included in the Company’s Annual Report on Form 10-K/A 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, 2018 is referred to as fiscal 2018.

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 November 30, 2017, the results of its operations for the three and nine months ended November 30, 2017 and 2016, and cash flows for the nine months ended November 30, 2017 and 2016. These interim results are not necessarily indicative of results for a full year.

Accounting Standards Recently Adopted

In November 2015, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2015-17, Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes. ASU 2015-17 simplifies the presentation of deferred taxes in a classified statement of financial position and was adopted by the Company on March 1, 2017. As a result of the adoption, the Company is required to offset deferred tax liabilities and assets, as well as any related valuation allowance, and present as a single non-current amount. However, the Company shall not offset deferred tax liabilities and assets attributable to different tax-paying components of the entity or to different tax jurisdictions. The adoption was on a prospective basis and therefore had no impact on the prior year.

Recently Issued Accounting Pronouncements

In January 2017, the FASB issued ASU No. 2017-04, Intangibles-Goodwill and Other Topics (Topic 350)-Simplifying the Test for Goodwill Impairment. This guidance simplifies the measurement of goodwill by eliminating the Step 2 impairment test. The new guidance requires companies to perform the goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. The amendment is required to be adopted prospectively. Early adoption is permitted for goodwill impairment tests performed on testing dates after January 1, 2017. The Company elected to adopt the guidance early effective for its annual goodwill impairment test performed in the fourth quarter of fiscal year 2018 and the adoption did not have a material impact on its consolidated financial statements.

In August 2016, the FASB issued 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 Company will adopt the new standard effective in the first quarter of fiscal year 2019 and the adoption is not expected to have a material impact on its consolidated statements of cash flows.

In February 2016, the 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 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 selected a transition method, has not yet determined whether it will elect early adoption and is currently evaluating the impact of the adoption of this standard on its consolidated financial statements and related disclosures.

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers: Topic 606 ("ASU 2014-09") which supersedes the revenue recognition requirements in ASC 605, Revenue Recognition. The core principle of ASU 2014-09 is to recognize revenue when promised goods or services are transferred to customers in an amount that reflects the consideration that is expected to be received for those goods or services. The standard will be effective for the Company beginning in fiscal 2019 and provides the option to adopt the guidance on a full retrospective basis or a modified retrospective basis.

The Company has substantially completed its assessment of the impacts that the standard will have on its financial statements, and determined that the adoption is not expected to have a significant impact on its results of operations, cash flows, or financial position. Based on the Company’s evaluation process completed and review of its contracts with customers, the timing and amount of revenue recognized under the new standard is generally consistent with its revenue recognition policy under previous guidance. For its Metal Coatings segment, the Company will recognize revenue over time as the metal coating is applied to the customer owned material while revenue was recognized at the completion of the service under the prior guidance. However, the change is not expected to significantly impact the timing of revenue recognition except for uncompleted jobs at the end of each quarter. For its Energy segment, the Company will recognize revenues for custom built products over time if the goods do not have an alternative use to the Company and the Company has an unconditional right to payment for work completed to date plus the applicable margin. This is generally consistent with the revenue recognition pattern under the prior guidance, however the Company continues to monitor its contracts to ensure that it has an unconditional right to payment and, in the circumstances when it does not, per the guidance, it will recognize revenues at a point-in-time upon transfer of the good to the customer. For bespoke services within its Energy segment, the Company will continue to recognize revenues over time as the services are rendered, and for off-the-shelf products, the Company will continue to recognize revenue at a point-in-time upon the transfer of the goods to the customer. The Company will adopt the new standard effective in the first quarter of fiscal year 2019, using the modified retrospective approach, and will expand its consolidated financial statement disclosures in order to comply with the new standard.