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Revenue - Schedule of Construction Segment Revenue (Details) - Infrastructure $ in Millions | Jun. 30, 2021 USD ($)
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Segment Reporting Information [Line Items] |
Remaining performance obligations | $ 1,624.4
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01 | Revenue, Remaining Performance Obligation, Period One |
Segment Reporting Information [Line Items] |
Remaining performance obligations | $ 987.0
Remaining performance obligation period | 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01 | Revenue, Remaining Performance Obligation, Period Two |
Segment Reporting Information [Line Items] |
Remaining performance obligations | $ 637.4
Remaining performance obligation period | 5 years
Commercial |
Segment Reporting Information [Line Items] |
Remaining performance obligations | $ 1,200.7
Commercial | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01 | Revenue, Remaining Performance Obligation, Period One |
Segment Reporting Information [Line Items] |
Remaining performance obligations | $ 580.5
Remaining performance obligation period | 1 year
Commercial | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01 | Revenue, Remaining Performance Obligation, Period Two |
Segment Reporting Information [Line Items] |
Remaining performance obligations | $ 620.2
Remaining performance obligation period | 5 years
Industrial |
Segment Reporting Information [Line Items] |
Remaining performance obligations | $ 201.3
Industrial | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01 | Revenue, Remaining Performance Obligation, Period One |
Segment Reporting Information [Line Items] |
Remaining performance obligations | $ 201.3
Remaining performance obligation period | 1 year
Industrial | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01 | Revenue, Remaining Performance Obligation, Period Two |
Segment Reporting Information [Line Items] |
Remaining performance obligations | $ 0.0
Remaining performance obligation period | 5 years
Transportation |
Segment Reporting Information [Line Items] |
Remaining performance obligations | $ 58.7
Transportation | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01 | Revenue, Remaining Performance Obligation, Period One |
Segment Reporting Information [Line Items] |
Remaining performance obligations | $ 41.5
Remaining performance obligation period | 1 year
Transportation | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01 | Revenue, Remaining Performance Obligation, Period Two |
Segment Reporting Information [Line Items] |
Remaining performance obligations | $ 17.2
Remaining performance obligation period | 5 years
Government |
Segment Reporting Information [Line Items] |
Remaining performance obligations | $ 47.3
Government | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01 | Revenue, Remaining Performance Obligation, Period One |
Segment Reporting Information [Line Items] |
Remaining performance obligations | $ 47.3
Remaining performance obligation period | 1 year
Government | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01 | Revenue, Remaining Performance Obligation, Period Two |
Segment Reporting Information [Line Items] |
Remaining performance obligations | $ 0.0
Remaining performance obligation period | 5 years
Leisure |
Segment Reporting Information [Line Items] |
Remaining performance obligations | $ 7.0
Leisure | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01 | Revenue, Remaining Performance Obligation, Period One |
Segment Reporting Information [Line Items] |
Remaining performance obligations | $ 7.0
Remaining performance obligation period | 1 year
Leisure | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01 | Revenue, Remaining Performance Obligation, Period Two |
Segment Reporting Information [Line Items] |
Remaining performance obligations | $ 0.0
Remaining performance obligation period | 5 years
Healthcare |
Segment Reporting Information [Line Items] |
Remaining performance obligations | $ 51.1
Healthcare | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01 | Revenue, Remaining Performance Obligation, Period One |
Segment Reporting Information [Line Items] |
Remaining performance obligations | $ 51.1
Remaining performance obligation period | 1 year
Healthcare | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01 | Revenue, Remaining Performance Obligation, Period Two |
Segment Reporting Information [Line Items] |
Remaining performance obligations | $ 0.0
Remaining performance obligation period | 5 years
Convention |
Segment Reporting Information [Line Items] |
Remaining performance obligations | $ 52.7
Convention | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01 | Revenue, Remaining Performance Obligation, Period One |
Segment Reporting Information [Line Items] |
Remaining performance obligations | $ 52.7
Remaining performance obligation period | 1 year
Convention | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01 | Revenue, Remaining Performance Obligation, Period Two |
Segment Reporting Information [Line Items] |
Remaining performance obligations | $ 0.0
Remaining performance obligation period | 5 years
Other |
Segment Reporting Information [Line Items] |
Remaining performance obligations | $ 5.6
Other | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01 | Revenue, Remaining Performance Obligation, Period One |
Segment Reporting Information [Line Items] |
Remaining performance obligations | $ 5.6
Remaining performance obligation period | 1 year
Other | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01 | Revenue, Remaining Performance Obligation, Period Two |
Segment Reporting Information [Line Items] |
Remaining performance obligations | $ 0.0
Remaining performance obligation period | 5 years

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