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Revenue from Contracts with Customers - Schedule of Revenue, Remaining Performance Obligations (Details) $ in Thousands | Sep. 30, 2025 USD ($)
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Schedule of Remaining Performance Obligations [Line Items] |
Remaining performance obligations | $ 12,613,893
Remaining performance obligations, percent | 100.00%
UNITED STATES |
Schedule of Remaining Performance Obligations [Line Items] |
Remaining performance obligations | $ 12,402,065
Remaining performance obligations, percent | 98.00%
UNITED STATES | United States Electrical Construction And Facilities Services [Member] |
Schedule of Remaining Performance Obligations [Line Items] |
Remaining performance obligations | $ 4,497,521
Remaining performance obligations, percent | 35.00%
UNITED STATES | United States Mechanical Construction And Facilities Services [Member] |
Schedule of Remaining Performance Obligations [Line Items] |
Remaining performance obligations | $ 6,421,665
Remaining performance obligations, percent | 51.00%
UNITED STATES | United States Building Services [Member] |
Schedule of Remaining Performance Obligations [Line Items] |
Remaining performance obligations | $ 1,280,681
Remaining performance obligations, percent | 10.00%
UNITED STATES | United States Industrial Services [Member] |
Schedule of Remaining Performance Obligations [Line Items] |
Remaining performance obligations | $ 202,198
Remaining performance obligations, percent | 2.00%
UNITED KINGDOM | United Kingdom Building Services [Member] |
Schedule of Remaining Performance Obligations [Line Items] |
Remaining performance obligations | $ 211,828
Remaining performance obligations, percent | 2.00%

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- 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
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- Definition Percentage of remaining performance obligation to total remaining performance obligation not recognized as revenue. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (b)(1) -SubTopic 10 -Topic 606 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-13 + Details
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