Acquisitions (Pro Forma Information) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended	6 Months Ended
Dec. 31, 2013	Dec. 31, 2013
Kvaerner NAC
Business Acquisition [Line Items]
Revenues	$ 395,600	$ 671,832
Net income attributable to Matrix Service Company	12,422	19,834
Basic earnings per common share	$ 0.47	$ 0.76
Diluted earnings per common share	$ 0.46	$ 0.74
Adjustment for Amortization Expense [Member] \| Matrix NAC
Business Acquisition [Line Items]
Net income attributable to Matrix Service Company	1,100	2,100
Adjustment for Depreciation Expense [Member] \| Matrix NAC
Business Acquisition [Line Items]
Net income attributable to Matrix Service Company	$ 600	$ 1,200

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The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(2)-(3)

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

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+ References

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+ References

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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