Basis of Presentation (Notes)	6 Months Ended
Dec. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation and Accounting Policies The condensed consolidated financial statements include the accounts of Matrix Service Company (“Matrix”, “we”, “our”, “us”, “its” or the “Company”) and its subsidiaries, unless otherwise indicated. Intercompany balances and transactions have been eliminated in consolidation. The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with Rule 10-01 of Regulation S-X for interim financial statements required to be filed with the Securities and Exchange Commission and do not include all information and footnotes required by generally accepted accounting principles for complete financial statements. However, the information furnished reflects all adjustments, consisting of normal recurring adjustments and other adjustments described herein, that are, in the opinion of management, necessary for a fair statement of the results of operations, cash flows and financial position for the interim periods presented. The accompanying condensed financial statements should be read in conjunction with the audited financial statements for the year ended June 30, 2014, included in the Company’s Annual Report on Form 10-K for the year then ended. Quarterly operating results can exhibit seasonal fluctuations, especially in our Oil Gas & Chemical segment, for a variety of reasons. Turnarounds and planned outages at customer facilities are typically scheduled in the spring and the fall when the demand for energy is lower. Within the Electrical Infrastructure segment, transmission and distribution work is generally scheduled by the public utilities when the demand for electricity is at its lowest. Therefore, revenue volume in the summer months is typically lower than in other periods throughout the year. Also, we typically see a lower level of operating activity relating to construction projects during the winter months and early in the calendar year because many of our customers’ capital budgets have not been finalized. Our business can also be affected, both positively and negatively, by seasonal factors such as energy demand or weather conditions including hurricanes, snowstorms, and abnormally low or high temperatures. Some of these seasonal factors may cause some of our offices and projects to close or reduce activities temporarily. Accordingly, results for any interim period may not necessarily be indicative of future operating results. Recently Issued Accounting Standards Accounting Standards Update 2014-09 (Topic 606), Revenue from Contracts with Customers On May 28, 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2014-09, "Revenue from Contracts with Customers." The standard outlines a 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. The core principle of the revenue model is that “an entity recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services.” In applying the revenue model to contracts within its scope, an entity: • Identifies the contract(s) with a customer (step 1). • Identifies the performance obligations in the contract (step 2). • Determines the transaction price (step 3). • Allocates the transaction price to the performance obligations in the contract (step 4). • Recognizes revenue when (or as) the entity satisfies a performance obligation (step 5). The ASU also requires entities to disclose both quantitative and qualitative information that enables users of financial statements to understand the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. The ASU’s disclosure requirements are significantly more comprehensive than those in existing revenue standards. The ASU applies to all contracts with customers except those that are within the scope of other topics in the FASB Accounting Standards Codification ("ASC"). For public entities, the ASU is effective for annual reporting periods (including interim reporting periods within those periods) beginning after December 15, 2016. Early application is not permitted. We expect to adopt this standard in fiscal 2018 and are currently evaluating its expected impact on our financial statements. Accounting Standards Update 2014-08 (Topics 205 and 360), Presentation of Financial Statements (Topic 205) and Property, Plant, and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity On April 10, 2014, the FASB issued ASU 2014-08, " Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity" which amends the definition of a discontinued operation in ASC 205-20 and requires entities to provide additional disclosures about discontinued operations as well as disposal transactions that do not meet the discontinued-operations criteria. The FASB issued the ASU to provide additional information and to make it more difficult for a disposal transaction to qualify as a discontinued operation (since the FASB believes that too many disposal transactions were qualifying as discontinued operations under the old definition). Under the previous guidance in ASC 205-20-45-1, the results of operations of a component of an entity were classified as a discontinued operation if all of the following conditions were met: • "The component “has been disposed of or is classified as held for sale.” • “The operations and cash flows of the component have been (or will be) eliminated from the ongoing operations of the entity as a result of the disposal transaction.” • “The entity will not have any significant continuing involvement in the operations of the component after the disposal transaction.” The new guidance eliminates the second and third criteria above and instead requires discontinued operations treatment for disposals of a component or group of components that represents a strategic shift that has or will have a major impact on an entity’s operations or financial results. The ASU also expands the scope of ASC 205-20 to disposals of equity method investments and businesses that, upon initial acquisition, qualify as held for sale.The ASU is effective prospectively for all disposals (except disposals classified as held for sale before the adoption date) or components initially classified as held for sale in periods beginning on or after December 15, 2014. The Company adopted this standard as of January 1, 2015. The adoption of this standard did not have a material impact on our consolidated financial statements. Accounting Standards Update 2014-15 (Subtopic 205-40)—Presentation of Financial Statements—Going Concern : Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern On August 27, 2014, the FASB issued ASU 2014-15, which provides guidance on determining when and how reporting entities must disclose going-concern uncertainties in their financial statements. The new standard requires management to perform interim and annual assessments of an entity’s ability to continue as a going concern within one year of the date of issuance of the entity’s financial statements. Further, an entity must provide certain disclosures if there is “substantial doubt about the entity’s ability to continue as a going concern.” The FASB believes that requiring management to perform the assessment will enhance the timeliness, clarity, and consistency of related disclosures and improve convergence with international financial reporting standards ("IFRSs") (which emphasize management’s responsibility for performing the going-concern assessment). However, the time horizon for the assessment (look-forward period) and the disclosure thresholds under U.S. GAAP and IFRSs will continue to differ. The ASU is effective for annual periods ending after December 15, 2016, and interim periods thereafter; early adoption is permitted. We expect to adopt this standard in fiscal 2017.

Basis of Presentation and Accounting Policies

The condensed consolidated financial statements include the accounts of Matrix Service Company (“Matrix”, “we”, “our”, “us”, “its” or the “Company”) and its subsidiaries, unless otherwise indicated. Intercompany balances and transactions have been eliminated in consolidation.

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with Rule 10-01 of Regulation S-X for interim financial statements required to be filed with the Securities and Exchange Commission and do not include all information and footnotes required by generally accepted accounting principles for complete financial statements. However, the information furnished reflects all adjustments, consisting of normal recurring adjustments and other adjustments described herein, that are, in the opinion of management, necessary for a fair statement of the results of operations, cash flows and financial position for the interim periods presented. The accompanying condensed financial statements should be read in conjunction with the audited financial statements for the year ended June 30, 2014, included in the Company’s Annual Report on Form 10-K for the year then ended.

Quarterly operating results can exhibit seasonal fluctuations, especially in our Oil Gas & Chemical segment, for a variety of reasons. Turnarounds and planned outages at customer facilities are typically scheduled in the spring and the fall when the demand for energy is lower. Within the Electrical Infrastructure segment, transmission and distribution work is generally scheduled by the public utilities when the demand for electricity is at its lowest. Therefore, revenue volume in the summer months is typically lower than in other periods throughout the year. Also, we typically see a lower level of operating activity relating to construction projects during the winter months and early in the calendar year because many of our customers’ capital budgets have not been finalized. Our business can also be affected, both positively and negatively, by seasonal factors such as energy demand or weather conditions including hurricanes, snowstorms, and abnormally low or high temperatures. Some of these seasonal factors may cause some of our offices and projects to close or reduce activities temporarily. Accordingly, results for any interim period may not necessarily be indicative of future operating results.

Recently Issued Accounting Standards

Accounting Standards Update 2014-09 (Topic 606), Revenue from Contracts with Customers

On May 28, 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2014-09, "Revenue from Contracts with Customers." The standard outlines a 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. The core principle of the revenue model is that “an entity recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services.” In applying the revenue model to contracts within its scope, an entity:

• Identifies the contract(s) with a customer (step 1).

• Identifies the performance obligations in the contract (step 2).

• Determines the transaction price (step 3).

• Allocates the transaction price to the performance obligations in the contract (step 4).

• Recognizes revenue when (or as) the entity satisfies a performance obligation (step 5).

The ASU also requires entities to disclose both quantitative and qualitative information that enables users of financial statements to understand the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. The ASU’s disclosure requirements are significantly more comprehensive than those in existing revenue standards. The ASU applies to all contracts with customers except those that are within the scope of other topics in the FASB Accounting Standards Codification ("ASC"). For public entities, the ASU is effective for annual reporting periods (including interim reporting periods within those periods) beginning after December 15, 2016. Early application is not permitted. We expect to adopt this standard in fiscal 2018 and are currently evaluating its expected impact on our financial statements.

Accounting Standards Update 2014-08 (Topics 205 and 360), Presentation of Financial Statements (Topic 205) and Property, Plant, and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity

On April 10, 2014, the FASB issued ASU 2014-08, " Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity" which amends the definition of a discontinued operation in ASC 205-20 and requires entities to provide additional disclosures about discontinued operations as well as disposal transactions that do not meet the discontinued-operations criteria. The FASB issued the ASU to provide additional information and to make it more difficult for a disposal transaction to qualify as a discontinued operation (since the FASB believes that too many disposal transactions were qualifying as discontinued operations under the old definition). Under the previous guidance in ASC 205-20-45-1, the results of operations of a component of an entity were classified as a discontinued operation if all of the following conditions were met:

• "The component “has been disposed of or is classified as held for sale.”

• “The operations and cash flows of the component have been (or will be) eliminated from the ongoing operations of the entity

as a result of the disposal transaction.”

• “The entity will not have any significant continuing involvement in the operations of the component after the disposal

transaction.”

The new guidance eliminates the second and third criteria above and instead requires discontinued operations treatment for disposals of a component or group of components that represents a strategic shift that has or will have a major impact on an entity’s operations or financial results. The ASU also expands the scope of ASC 205-20 to disposals of equity method investments and businesses that, upon initial acquisition, qualify as held for sale.The ASU is effective prospectively for all disposals (except disposals classified as held for sale before the adoption date) or components initially classified as held for sale in periods beginning on or after December 15, 2014. The Company adopted this standard as of January 1, 2015. The adoption of this standard did not have a material impact on our consolidated financial statements.

Accounting Standards Update 2014-15 (Subtopic 205-40)—Presentation of Financial Statements—Going Concern : Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern

On August 27, 2014, the FASB issued ASU 2014-15, which provides guidance on determining when and how reporting entities must disclose going-concern uncertainties in their financial statements. The new standard requires management to perform interim and annual assessments of an entity’s ability to continue as a going concern within one year of the date of issuance of the entity’s financial statements. Further, an entity must provide certain disclosures if there is “substantial doubt about the entity’s ability to continue as a going concern.” The FASB believes that requiring management to perform the assessment will enhance the timeliness, clarity, and consistency of related disclosures and improve convergence with international financial reporting standards ("IFRSs") (which emphasize management’s responsibility for performing the going-concern assessment). However, the time horizon for the assessment (look-forward period) and the disclosure thresholds under U.S. GAAP and IFRSs will continue to differ. The ASU is effective for annual periods ending after December 15, 2016, and interim periods thereafter;

early adoption is permitted. We expect to adopt this standard in fiscal 2017.