XML 45 R35.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Contract Assets and Liabilities - Contracts in process (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Abstract] |  |
Costs and estimated earnings on uncompleted contracts | $ 4,850,508 | $ 4,130,621
Less: billings to date | 4,837,157 | 4,162,133
Net asset position for contracts in process | $ 13,351 | $ (31,512)

X
- Definition Represents the aggregate of costs incurred on uncompleted contracts and estimated earnings. + References No definition available. + Details
Name: | myrg_AggregateCostsIncurredOnUncompletedContractsAndEstimatedEarnings
Namespace Prefix: | myrg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represents the billings to date on uncompleted contracts accounted for under the percentage-of-completion method. + References No definition available. + Details
Name: | myrg_BillingsToDate
Namespace Prefix: | myrg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Represents the net costs and estimated earnings in excess of billings on uncompleted contracts accounted for under the percentage-of-completion method. + References No definition available. + Details
Name: | myrg_NetCostsAndEstimatedEarningsInExcessOfBillings
Namespace Prefix: | myrg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_ContractWithCustomerAssetAndLiabilityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration