XML 82 R41.htm IDEA: XBRL DOCUMENT v2.4.0.8

Customer Contracts (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Business Acquisition [Line Items]
Provision for Loss on Contracts	$ 8.4	$ 3.7
SME [Member]
Business Acquisition [Line Items]
Record amount of claims	0.7	0.7
S.M. Electric Company [Member]
Business Acquisition [Line Items]
Contracts Receivable, Claims and Uncertain Amounts, Expected to be Collected in Next Rolling Twelve Months	$ 2.9	$ 2.9

X

- Definition

Business combination claim settlement receivables.

+ References

No definition available.

+ Details

Name:	mtrx_BusinessCombinationClaimSettlementReceivables
Namespace Prefix:	mtrx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_BusinessAcquisitionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of billed or unbilled claims or other similar items subject to uncertainty concerning their determination or ultimate realization under long-term contracts that are expected to be collected in the next rolling twelve months following the latest balance sheet presented.

+ References

No definition available.

+ Details

Name:	us-gaap_ContractsReceivableClaimsAndUncertainAmountsExpectedToBeCollectedInNextRollingTwelveMonths
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Losses recognized in the current period on contracts which are expected to generate losses, which are probable and can be reasonably estimated, in a future period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.2)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

+ Details

Name:	us-gaap_LossOnContracts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration