Basis of Presentation (Notes)	3 Months Ended
Sep. 30, 2015
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, 2015, included in the Company’s Annual Report on Form 10-K for the year then ended. 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. 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.” 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"). In July 2015, the FASB deferred the effective date of ASU 2014-09 by one year. With the deferral, this ASU is now effective for annual reporting periods beginning after December 15, 2017, with early adoption now permitted on a limited basis. Upon adoption, the Company may elect one of two application methods, a full retrospective application or a modified retrospective application. We expect to adopt this standard on July 1, 2018 and are currently evaluating its expected impact on our 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. Accounting Standards Update 2015-15—Interest—Imputation of Interest (Subtopic 835-30): Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements—Amendments to SEC Paragraphs Pursuant to Staff Announcement at June 18, 2015 EITF Meeting (SEC Update) On August 16, 2015, the FASB issued ASU 2015-15 to clarify the Securities and Exchange Commission ("SEC") staff’s position on presenting and measuring debt issuance costs incurred in connection with line-of-credit arrangements given the lack of guidance on this topic in ASU 2015-03. The SEC has announced that it would “not object to an entity deferring and presenting debt issuance costs as an asset and subsequently amortizing the deferred debt issuance costs ratably over the term of the line-of-credit arrangement.” For public business entities, the amendments in this Update are effective for financial statements issued for fiscal years beginning after December 15, 2015, and interim periods within those fiscal years. We expect to adopt this standard in fiscal 2017. The adoption of this standard will have no impact on the Company's presentation of debt issuance costs. Accounting Standards Update 2015-16—Business Combinations (Topic 805)—Simplifying the Accounting for Measurement-Period Adjustments On September 25, 2015, the FASB issued ASU 2015-16 to simplify the accounting for measurement-period adjustments. The ASU was issued in response to stakeholder feedback that restatements of prior periods to reflect adjustments made to provisional amounts recognized in a business combination increase the cost and complexity of financial reporting but do not significantly improve the usefulness of the information. Under the ASU, an acquirer must recognize adjustments to provisional amounts that are identified during the measurement period in the reporting period in which the adjustment amounts are determined. The ASU also requires acquirers to present separately on the face of the income statement, or disclose in the notes, the portion of the amount recorded in current-period earnings by line item that would have been recorded in previous reporting periods if the adjustment to the provisional amounts had been recognized as of the acquisition date. For public business entities, the ASU is effective for fiscal years beginning after December 15, 2015, including interim periods within those fiscal years. 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, 2015, included in the Company’s Annual Report on Form 10-K for the year then ended.

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. 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.” 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").

In July 2015, the FASB deferred the effective date of ASU 2014-09 by one year. With the deferral, this ASU is now effective for annual reporting periods beginning after December 15, 2017, with early adoption now permitted on a limited basis. Upon adoption, the Company may elect one of two application methods, a full retrospective application or a modified retrospective application. We expect to adopt this standard on July 1, 2018 and are currently evaluating its expected impact on our 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.

Accounting Standards Update 2015-15—Interest—Imputation of Interest (Subtopic 835-30): Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements—Amendments to SEC Paragraphs Pursuant to Staff Announcement at June 18, 2015 EITF Meeting (SEC Update)

On August 16, 2015, the FASB issued ASU 2015-15 to clarify the Securities and Exchange Commission ("SEC") staff’s position on presenting and measuring debt issuance costs incurred in connection with line-of-credit arrangements given the lack of guidance on this topic in ASU 2015-03. The SEC has announced that it would “not object to an entity deferring and presenting debt issuance costs as an asset and subsequently amortizing the deferred debt issuance costs ratably over the term of the line-of-credit arrangement.” For public business entities, the amendments in this Update are effective for financial statements issued for fiscal years beginning after December 15, 2015, and interim periods within those fiscal years. We expect to adopt this standard in fiscal 2017. The adoption of this standard will have no impact on the Company's presentation of debt issuance costs.

Accounting Standards Update 2015-16—Business Combinations (Topic 805)—Simplifying the Accounting for Measurement-Period Adjustments

On September 25, 2015, the FASB issued ASU 2015-16 to simplify the accounting for measurement-period adjustments. The ASU was issued in response to stakeholder feedback that restatements of prior periods to reflect adjustments made to provisional amounts recognized in a business combination increase the cost and complexity of financial reporting but do not significantly improve the usefulness of the information. Under the ASU, an acquirer must recognize adjustments to provisional amounts that are identified during the measurement period in the reporting period in which the adjustment amounts are determined. The ASU also requires acquirers to present separately on the face of the income statement, or disclose in the notes, the portion of the amount recorded in current-period earnings by line item that would have been recorded in previous reporting periods if the adjustment to the provisional amounts had been recognized as of the acquisition date. For public business entities, the ASU is effective for fiscal years beginning after December 15, 2015, including interim periods within those fiscal years. We expect to adopt this standard in fiscal 2017.