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v2.4.1.9

Segment Information (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Contract revenues: | $ 250,979 us-gaap_SalesRevenueServicesNet | $ 248,473 us-gaap_SalesRevenueServicesNet | $ 228,877 us-gaap_SalesRevenueServicesNet | $ 215,638 us-gaap_SalesRevenueServicesNet | $ 254,581 us-gaap_SalesRevenueServicesNet | $ 232,890 us-gaap_SalesRevenueServicesNet | $ 213,916 us-gaap_SalesRevenueServicesNet | $ 201,342 us-gaap_SalesRevenueServicesNet | $ 943,967 us-gaap_SalesRevenueServicesNet | $ 902,729 us-gaap_SalesRevenueServicesNet | $ 998,959 us-gaap_SalesRevenueServicesNet
Income from operations |  |  |  |  |  |  |  |  | 58,404 us-gaap_OperatingIncomeLoss | 55,617 us-gaap_OperatingIncomeLoss | 55,762 us-gaap_OperatingIncomeLoss
T&D [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Contract revenues: |  |  |  |  |  |  |  |  | 699,595 us-gaap_SalesRevenueServicesNet / us-gaap_StatementBusinessSegmentsAxis = myrg_TdMember | 722,387 us-gaap_SalesRevenueServicesNet / us-gaap_StatementBusinessSegmentsAxis = myrg_TdMember | 828,711 us-gaap_SalesRevenueServicesNet / us-gaap_StatementBusinessSegmentsAxis = myrg_TdMember
Income from operations |  |  |  |  |  |  |  |  | 75,439 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = myrg_TdMember | 81,413 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = myrg_TdMember | 80,460 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = myrg_TdMember
C&I [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Contract revenues: |  |  |  |  |  |  |  |  | 244,372 us-gaap_SalesRevenueServicesNet / us-gaap_StatementBusinessSegmentsAxis = myrg_CiMember | 180,342 us-gaap_SalesRevenueServicesNet / us-gaap_StatementBusinessSegmentsAxis = myrg_CiMember | 170,248 us-gaap_SalesRevenueServicesNet / us-gaap_StatementBusinessSegmentsAxis = myrg_CiMember
Income from operations |  |  |  |  |  |  |  |  | 16,542 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = myrg_CiMember | 10,423 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = myrg_CiMember | 7,647 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = myrg_CiMember
General Corporate [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Income from operations |  |  |  |  |  |  |  |  | $ (33,577)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | $ (36,219)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | $ (32,345)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember

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- Definition Aggregate revenue during the period from services rendered in the normal course of business, after deducting allowances and discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(d)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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