XML 71 R61.htm IDEA: XBRL DOCUMENT
v3.20.1

Commitments and Contingencies - Legal (Details) - USD ($) $ in Thousands |  | 3 Months Ended |
--- | --- | --- | ---
Feb. 25, 2015 | Mar. 31, 2020 | Mar. 31, 2019 | Dec. 31, 2019
Commitments and contingencies |  |  |  |
Revenue |  | $ 743,243 | $ 661,558 |
Gross Profit |  | $ 47,810 | $ 52,460 |
JCG | North Texas Tollway Authority v. James Construction Group, LLC |  |  |  |
Commitments and contingencies |  |  |  |
Expected remediation cost on settlement | $ 17,000 |  |  |
Percentage of expected costs second defendant would pay |  | 20.00% |  |
Percentage of expected costs Company would pay |  | 80.00% |  |
Remaining accrual balance |  | $ 6,500 |  |
Expected remediation cost | 22,400 |  |  |
Increase in liability |  | 500 |  |
Remediation costs |  | 2,500 |  |
JCG | North Texas Tollway Authority v. James Construction Group, LLC | Maximum |  |  |  |
Commitments and contingencies |  |  |  |
Agreed payments by second defendant in expected remediation costs toward settlement | $ 5,400 |  |  |
Bonding |  |  |  |
Commitments and contingencies |  |  |  |
Bid and completion bonds issued and outstanding |  | $ 829,000 |  | $ 648,600

X
- Definition Represents the amount of bonds issued and outstanding. + References No definition available. + Details
Name: | prim_BondsIssuedAndOutstanding
Namespace Prefix: | prim_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Represents the percentage of expected costs towards the settlement that the co-defendant would pay. + References No definition available. + Details
Name: | prim_LitigationCostsCodefendantPercentage
Namespace Prefix: | prim_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the percentage of expected costs towards the settlement that the Company would pay. + References No definition available. + Details
Name: | prim_LitigationCostsCompanyPercentage
Namespace Prefix: | prim_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the amount of total expected remediation costs. + References No definition available. + Details
Name: | prim_LitigationSettlementExpectedRemediationCost
Namespace Prefix: | prim_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of increase in liability. + References No definition available. + Details
Name: | prim_LitigationSettlementIncreaseInLiability
Namespace Prefix: | prim_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount provided by defendants in expected costs toward the settlement. + References No definition available. + Details
Name: | prim_LitigationSettlementPaymentsByDefendantsInExpectedCosts
Namespace Prefix: | prim_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of remaining accrual balance which is to be paid to third-party contractor + References No definition available. + Details
Name: | prim_LitigationSettlementRemainingAccrualBalance
Namespace Prefix: | prim_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of remediation expense incurred. + References No definition available. + Details
Name: | prim_LitigationSettlementRemediationExpense
Namespace Prefix: | prim_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1,2) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
Name: | us-gaap_GrossProfit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount awarded to other party in judgment or settlement of litigation. + References No definition available. + Details
Name: | us-gaap_LitigationSettlementAmountAwardedToOtherParty
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_LossContingenciesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 + Details
Name: | us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=prim_JamesConstructionGroupLLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_LitigationCaseAxis=prim_NorthTexasTollwayAuthorityVJamesConstructionGroupLLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LossContingenciesByNatureOfContingencyAxis=us-gaap_SuretyBondMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |