XML 93 R61.htm IDEA: XBRL DOCUMENT
v3.25.0.1

REVENUE FROM CUSTOMERS - Backlog By Segment (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023 | Nov. 30, 2022
--- | --- | --- | ---
Segment Reporting Information [Line Items] |  |  |
Total RPOs | $ 1,693,223 |  |
Consolidated ownership percentage | 50.00% |  | 50.00%
RHB |  |  |
Segment Reporting Information [Line Items] |  |  |
Total RPOs | $ 491,255 |  |
Total Assets |  |  |
Segment Reporting Information [Line Items] |  |  |
Total RPOs |  | $ 2,067,016 |
E-Infrastructure Solutions | Total Assets |  |  |
Segment Reporting Information [Line Items] |  |  |
Total RPOs | 1,032,109 | 813,729 |
Transportation Solutions | Total Assets |  |  |
Segment Reporting Information [Line Items] |  |  |
Total RPOs | 622,085 | 1,184,496 |
Building Solutions | Total Assets |  |  |
Segment Reporting Information [Line Items] |  |  |
Total RPOs | $ 39,029 | $ 68,791 |

X
- Definition Consolidated Entities, Ownership Percentage + References No definition available. + Details
Name: | strl_ConsolidatedEntitiesOwnershipPercentage
Namespace Prefix: | strl_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of transaction price allocated to performance obligation that has not been recognized as revenue. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (a) -SubTopic 10 -Topic 606 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-13 + Details
Name: | us-gaap_RevenueRemainingPerformanceObligation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=strl_RoadAndHighwayBuildersLLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementOperatingActivitiesSegmentAxis=us-gaap_SegmentContinuingOperationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=strl_EInfrastructureSolutionsSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=strl_TransportationSolutionsSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=strl_BuildingSolutionsSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |