Effects of New Accounting Pronouncements	12 Months Ended
Mar. 31, 2018
New Accounting Standards [Abstract]
Effects of New Accounting Pronouncements	Effects of New Accounting Pronouncements In March 2018, the FASB issued ASU No. 2018-05, "Income Taxes (Topic 740): Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118." This ASU adds guidance to ASC 740, Income Taxes, that contain SEC guidance related to SAB 118 (codified as SEC SAB Topic 5.EE, “Income Tax Accounting Implications of the Tax Cuts and Jobs Act”). The standard is effective upon issuance. Refer to Note 16 for further information regarding the impact of the standard. In February 2018, the FASB issued ASU No. 2018-02, "Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income." This ASU amends ASC 220, Income Statement — Reporting Comprehensive Income, to allow a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act. In addition, under the ASU, an entity will be required to provide certain disclosures regarding stranded tax effects. The ASU is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018, with early adoption permitted. We are currently evaluating the impact the standard will have on our consolidated financial statements. In May 2014, the FASB issued ASU No. 2014-09, "Revenue from Contracts with Customers (Topic 606)." ASU 2014-09 outlines a new, single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance, including industry-specific guidance. This new revenue recognition model provides a five-step analysis in determining when and how revenue is recognized. The new model will require revenue recognition to depict the transfer of promised goods or services to customers in an amount that reflects the consideration a company expects to receive in exchange for those goods or services. In August 2015, the FASB issued Accounting Standards Update No. 2015-14, “Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date,” which delays the effective date of ASU 2014-09 by one year. This ASU and various other amendments below which clarify the new revenue standard are effective for fiscal years, and interim periods within those years, beginning after December 15, 2017. In March 2016, the FASB issued ASU 2016-08, "Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net)." This ASU amends the principal-versus-agent implementation guidance and illustrations in the FASB’s new revenue standard (ASC 606). The FASB issued the ASU in response to concerns identified by stakeholders, including those related to (1) determining the appropriate unit of account under the revenue standard’s principal-versus-agent guidance and (2) applying the indicators of whether an entity is a principal or an agent in accordance with the revenue standard’s control principle. The ASU is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017, with early adoption permitted. In May 2016, the FASB issued ASU No. 2016-12, "Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients." ASU 2016-12 provides for amendments to ASU No. 2014-09, Revenue from Contracts with Customers, amending the guidance on transition, collectability, noncash consideration and the presentation of sales and other similar taxes. Specifically, ASU 2016-12 clarifies that, for a contract to be considered completed at transition, all (or substantially all) of the revenue must have been recognized under legacy GAAP. In addition, ASU 2016-12 clarifies how an entity should evaluate the collectability threshold and when an entity can recognize nonrefundable consideration received as revenue if an arrangement does not meet the standard’s contract criteria. In November 2017, the FASB issued ASU No. 2017-14, "Income Statement - Reporting Comprehensive Income (Topic 220), Revenue Recognition (Topic 605), and Revenue From Contracts With Customers (Topic 606)." The standard amends various paragraphs in ASC 220, ASC 605, and ASC 606 that contains SEC guidance, specifically Staff Accounting Bulletin No. 116 (SAB 116). The ASU is effective for fiscal years beginning after December 15, 2017, with early adoption permitted. The new revenue standard is effective for the Company on April 1, 2018 and the Company plans to adopt using the modified retrospective method whereas prior periods are not restated. We have evaluated revenue from contracts with customers and have concluded that the new standard will not have a material impact on the Company's financial statements at transition. Therefore, we do not expect to record a material cumulative catch up adjustment to retained earnings for revenue differences identified due to the timing or amount of revenue. We have updated our policies and internal control framework and implemented additional controls to facilitate accounting for certain projects under the new standard, specifically for certain rail and road and other custom projects in the EMEA region. Lastly, the Company is still evaluating the impact of certain disclosures which are required under the new standard during the first quarter in fiscal 2019. In August 2017, the FASB issued ASU No. 2017-12, "Targeted Improvements to Accounting for Hedging Activities (Topic 815)." The standard better aligns an entity’s financial reporting for hedging relationships with risk management activities and reduces the complexity for the application of hedge accounting. Changes include the ability to elect to perform subsequent effectiveness assessments qualitatively and the elimination of the concept of recognizing periodic hedge ineffectiveness for cash flow hedges. The ASU is effective for fiscal years beginning after December 15, 2018, with early adoption permitted. We are currently evaluating the impact the standard will have on our consolidated financial statements. In May 2017, the FASB issued ASU No. 2017-10, "Service Concession Arrangements (Topic 853)." The standard clarifies how an operating entity determines the customer of the operation services for transactions within the scope of ASC 853 by clarifying that the grantor is the customer of the operation services in all cases for those arrangements. The effective date is aligned with that of ASC 606, "Revenue from Contracts with Customers," which is April 1, 2018 for the Company. We do not anticipate that this standard will have a material effect on the consolidated financial statements. In May 2017, the FASB issued ASU No. 2017-09, "Compensation - Stock Compensation (Topic 718)." The standard provides guidance on the types of changes to the terms or conditions of share-based payment awards to which an entity would be required to apply modification accounting under ASC 718. Specifically, an entity would not apply modification accounting if the fair value, vesting conditions, and classification of the awards are the same immediately before and after the modification. The ASU is effective for fiscal years beginning after December 15, 2017 and interim periods within the fiscal year, with early adoption permitted. The Company does not expect that the adoption of this standard will have a material effect on the consolidated financial statements. In January 2017, the FASB issued ASU No. 2017-04, "Simplifying the Test for Goodwill Impairment (Topic 350)." The standard removes the requirement to compare the implied fair value of goodwill with its carrying value amount as part of step 2 of the goodwill test. Therefore, the impairment charge is the amount by which the carrying value is greater than the reporting unit's fair value. The ASU is effective prospectively for fiscal years beginning after December 15, 2019, with early adoption permitted for interim and annual goodwill impairment tests performed after January 1, 2017. The Company has adopted this standard effective April 1, 2017. The adoption of this standard did not have a material impact on the consolidated financial statements. In October 2016, the FASB issued ASU No. 2016-17, "Interest Held Through Related Parties That Are Under Common Control." The standard requires that a single decision maker consider indirect interests held by related parties under common control on a proportionate basis in a manner consistent with its evaluation of indirect interests held through other related parties. The ASU is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2016, with early adoption permitted. The adoption of this standard did not have a material impact on the consolidated financial statements. In March 2016, the FASB issued ASU No. 2016-09, "Compensation—Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting." This ASU makes several modifications to Topic 718 related to the accounting for forfeitures, employer tax withholding on share-based compensation and the financial statement presentation of excess tax benefits or deficiencies. ASU 2016-09 also clarifies the statement of cash flows presentation for certain components of share-based awards. The Company adopted this standard effective April 1, 2017. Refer to Note 14 for further information regarding the impact of the standard in fiscal 2018. In February 2016, the FASB issued ASU No. 2016-02, "Leases (Topic 842)." This standard will require all leases with durations greater than twelve months to be recognized on the balance sheet. This ASU is effective for interim and annual reporting periods beginning after December 15, 2018, although early adoption is permitted. We are currently evaluating the impact that the standard will have on our consolidated financial statements and internal control framework and have started gathering lease agreements in order to compile a complete list. Information about our undiscounted future lease payments and the timing of those payments is included in Note 17.

Effects of New Accounting Pronouncements

In March 2018, the FASB issued ASU No. 2018-05, "Income Taxes (Topic 740): Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118." This ASU adds guidance to ASC 740, Income Taxes, that contain SEC guidance related to SAB 118 (codified as SEC SAB Topic 5.EE, “Income Tax Accounting Implications of the Tax Cuts and Jobs Act”). The standard is effective upon issuance. Refer to Note 16 for further information regarding the impact of the standard.

In February 2018, the FASB issued ASU No. 2018-02, "Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income." This ASU amends ASC 220, Income Statement — Reporting Comprehensive Income, to allow a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act. In addition, under the ASU, an entity will be required to provide certain disclosures regarding stranded tax effects. The ASU is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018, with early adoption permitted. We are currently evaluating the impact the standard will have on our consolidated financial statements.

In May 2014, the FASB issued ASU No. 2014-09, "Revenue from Contracts with Customers (Topic 606)." ASU 2014-09 outlines a new, single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance, including industry-specific guidance. This new revenue recognition model provides a five-step analysis in determining when and how revenue is recognized. The new model will require revenue recognition to depict the transfer of promised goods or services to customers in an amount that reflects the consideration a company expects to receive in exchange for those goods or services. In August 2015, the FASB issued Accounting Standards Update No. 2015-14, “Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date,” which delays the effective date of ASU 2014-09 by one year. This ASU and various other amendments below which clarify the new revenue standard are effective for fiscal years, and interim periods within those years, beginning after December 15, 2017.

In March 2016, the FASB issued ASU 2016-08, "Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net)." This ASU amends the principal-versus-agent implementation guidance and illustrations in the FASB’s new revenue standard (ASC 606). The FASB issued the ASU in response to concerns identified by stakeholders, including those related to (1) determining the appropriate unit of account under the revenue standard’s principal-versus-agent guidance and (2) applying the indicators of whether an entity is a principal or an agent in accordance with the revenue standard’s control principle. The ASU is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017, with early adoption permitted.

In May 2016, the FASB issued ASU No. 2016-12, "Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients." ASU 2016-12 provides for amendments to ASU No. 2014-09, Revenue from Contracts with Customers, amending the guidance on transition, collectability, noncash consideration and the presentation of sales and other similar taxes. Specifically, ASU 2016-12 clarifies that, for a contract to be considered completed at transition, all (or substantially all) of the revenue must have been recognized under legacy GAAP. In addition, ASU 2016-12 clarifies how an entity should evaluate the collectability threshold and when an entity can recognize nonrefundable consideration received as revenue if an arrangement does not meet the standard’s contract criteria.

In November 2017, the FASB issued ASU No. 2017-14, "Income Statement - Reporting Comprehensive Income (Topic 220), Revenue Recognition (Topic 605), and Revenue From Contracts With Customers (Topic 606)." The standard amends various paragraphs in ASC 220, ASC 605, and ASC 606 that contains SEC guidance, specifically Staff Accounting Bulletin No. 116 (SAB 116). The ASU is effective for fiscal years beginning after December 15, 2017, with early adoption permitted.

The new revenue standard is effective for the Company on April 1, 2018 and the Company plans to adopt using the modified retrospective method whereas prior periods are not restated. We have evaluated revenue from contracts with customers and have concluded that the new standard will not have a material impact on the Company's financial statements at transition. Therefore, we do not expect to record a material cumulative catch up adjustment to retained earnings for revenue differences identified due to the timing or amount of revenue. We have updated our policies and internal control framework and implemented additional controls to facilitate accounting for certain projects under the new standard, specifically for certain rail and road and other custom projects in the EMEA region. Lastly, the Company is still evaluating the impact of certain disclosures which are required under the new standard during the first quarter in fiscal 2019.

In August 2017, the FASB issued ASU No. 2017-12, "Targeted Improvements to Accounting for Hedging Activities (Topic 815)." The standard better aligns an entity’s financial reporting for hedging relationships with risk management activities and reduces the complexity for the application of hedge accounting. Changes include the ability to elect to perform subsequent effectiveness assessments qualitatively and the elimination of the concept of recognizing periodic hedge ineffectiveness for cash flow hedges. The ASU is effective for fiscal years beginning after December 15, 2018, with early adoption permitted. We are currently evaluating the impact the standard will have on our consolidated financial statements.

In May 2017, the FASB issued ASU No. 2017-10, "Service Concession Arrangements (Topic 853)." The standard clarifies how an operating entity determines the customer of the operation services for transactions within the scope of ASC 853 by clarifying that the grantor is the customer of the operation services in all cases for those arrangements. The effective date is aligned with that of ASC 606, "Revenue from Contracts with Customers," which is April 1, 2018 for the Company. We do not anticipate that this standard will have a material effect on the consolidated financial statements.

In May 2017, the FASB issued ASU No. 2017-09, "Compensation - Stock Compensation (Topic 718)." The standard provides guidance on the types of changes to the terms or conditions of share-based payment awards to which an entity would be required to apply modification accounting under ASC 718. Specifically, an entity would not apply modification accounting if the fair value, vesting conditions, and classification of the awards are the same immediately before and after the modification. The ASU is effective for fiscal years beginning after December 15, 2017 and interim periods within the fiscal year, with early adoption permitted. The Company does not expect that the adoption of this standard will have a material effect on the consolidated financial statements.

In January 2017, the FASB issued ASU No. 2017-04, "Simplifying the Test for Goodwill Impairment (Topic 350)." The standard removes the requirement to compare the implied fair value of goodwill with its carrying value amount as part of step 2 of the goodwill test. Therefore, the impairment charge is the amount by which the carrying value is greater than the reporting unit's fair value. The ASU is effective prospectively for fiscal years beginning after December 15, 2019, with early adoption permitted for interim and annual goodwill impairment tests performed after January 1, 2017. The Company has adopted this standard effective April 1, 2017. The adoption of this standard did not have a material impact on the consolidated financial statements.

In October 2016, the FASB issued ASU No. 2016-17, "Interest Held Through Related Parties That Are Under Common Control." The standard requires that a single decision maker consider indirect interests held by related parties under common control on a proportionate basis in a manner consistent with its evaluation of indirect interests held through other related parties. The ASU is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2016, with early adoption permitted. The adoption of this standard did not have a material impact on the consolidated financial statements.

In March 2016, the FASB issued ASU No. 2016-09, "Compensation—Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting." This ASU makes several modifications to Topic 718 related to the accounting for forfeitures, employer tax withholding on share-based compensation and the financial statement presentation of excess tax benefits or deficiencies. ASU 2016-09 also clarifies the statement of cash flows presentation for certain components of share-based awards. The Company adopted this standard effective April 1, 2017. Refer to Note 14 for further information regarding the impact of the standard in fiscal 2018.

In February 2016, the FASB issued ASU No. 2016-02, "Leases (Topic 842)." This standard will require all leases with durations greater than twelve months to be recognized on the balance sheet. This ASU is effective for interim and annual reporting periods beginning after December 15, 2018, although early adoption is permitted. We are currently evaluating the impact that the standard will have on our consolidated financial statements and internal control framework and have started gathering lease agreements in order to compile a complete list. Information about our undiscounted future lease payments and the timing of those payments is included in Note 17.