XML 64 R53.htm IDEA: XBRL DOCUMENT v3.21.1
Revenue - Schedule of Construction Segment Revenue (Details) - Infrastructure
$ in Millions
Mar. 31, 2021
USD ($)
Segment Reporting Information [Line Items]  
Remaining performance obligations $ 513.8
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01 | Revenue, Remaining Performance Obligation, Period One  
Segment Reporting Information [Line Items]  
Remaining performance obligations $ 511.5
Remaining performance obligation period 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01 | Revenue, Remaining Performance Obligation, Period Two  
Segment Reporting Information [Line Items]  
Remaining performance obligations $ 2.3
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-04-01 | Revenue, Remaining Performance Obligation, Period Two  
Segment Reporting Information [Line Items]  
Remaining performance obligation period 5 years
Commercial  
Segment Reporting Information [Line Items]  
Remaining performance obligations $ 159.1
Commercial | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01 | Revenue, Remaining Performance Obligation, Period One  
Segment Reporting Information [Line Items]  
Remaining performance obligations $ 159.1
Remaining performance obligation period 1 year
Commercial | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01 | Revenue, Remaining Performance Obligation, Period Two  
Segment Reporting Information [Line Items]  
Remaining performance obligations $ 0.0
Commercial | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-04-01 | Revenue, Remaining Performance Obligation, Period Two  
Segment Reporting Information [Line Items]  
Remaining performance obligation period 5 years
Convention  
Segment Reporting Information [Line Items]  
Remaining performance obligations $ 67.3
Convention | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01 | Revenue, Remaining Performance Obligation, Period One  
Segment Reporting Information [Line Items]  
Remaining performance obligations $ 67.3
Remaining performance obligation period 1 year
Convention | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01 | Revenue, Remaining Performance Obligation, Period Two  
Segment Reporting Information [Line Items]  
Remaining performance obligations $ 0.0
Convention | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-04-01 | Revenue, Remaining Performance Obligation, Period Two  
Segment Reporting Information [Line Items]  
Remaining performance obligation period 5 years
Healthcare  
Segment Reporting Information [Line Items]  
Remaining performance obligations $ 33.8
Healthcare | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01 | Revenue, Remaining Performance Obligation, Period One  
Segment Reporting Information [Line Items]  
Remaining performance obligations $ 33.8
Remaining performance obligation period 1 year
Healthcare | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01 | Revenue, Remaining Performance Obligation, Period Two  
Segment Reporting Information [Line Items]  
Remaining performance obligations $ 0.0
Healthcare | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-04-01 | Revenue, Remaining Performance Obligation, Period Two  
Segment Reporting Information [Line Items]  
Remaining performance obligation period 5 years
Industrial  
Segment Reporting Information [Line Items]  
Remaining performance obligations $ 184.5
Industrial | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01 | Revenue, Remaining Performance Obligation, Period One  
Segment Reporting Information [Line Items]  
Remaining performance obligations $ 182.2
Remaining performance obligation period 1 year
Industrial | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01 | Revenue, Remaining Performance Obligation, Period Two  
Segment Reporting Information [Line Items]  
Remaining performance obligations $ 2.3
Industrial | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-04-01 | Revenue, Remaining Performance Obligation, Period Two  
Segment Reporting Information [Line Items]  
Remaining performance obligation period 5 years
Transportation  
Segment Reporting Information [Line Items]  
Remaining performance obligations $ 16.0
Transportation | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01 | Revenue, Remaining Performance Obligation, Period One  
Segment Reporting Information [Line Items]  
Remaining performance obligations $ 16.0
Remaining performance obligation period 1 year
Transportation | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01 | Revenue, Remaining Performance Obligation, Period Two  
Segment Reporting Information [Line Items]  
Remaining performance obligations $ 0.0
Transportation | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-04-01 | Revenue, Remaining Performance Obligation, Period Two  
Segment Reporting Information [Line Items]  
Remaining performance obligation period 5 years
Government  
Segment Reporting Information [Line Items]  
Remaining performance obligations $ 39.6
Government | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01 | Revenue, Remaining Performance Obligation, Period One  
Segment Reporting Information [Line Items]  
Remaining performance obligations 39.6
Government | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01 | Revenue, Remaining Performance Obligation, Period Two  
Segment Reporting Information [Line Items]  
Remaining performance obligations 0.0
Leisure  
Segment Reporting Information [Line Items]  
Remaining performance obligations 3.5
Leisure | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01 | Revenue, Remaining Performance Obligation, Period One  
Segment Reporting Information [Line Items]  
Remaining performance obligations $ 3.5
Remaining performance obligation period 1 year
Leisure | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01 | Revenue, Remaining Performance Obligation, Period Two  
Segment Reporting Information [Line Items]  
Remaining performance obligations $ 0.0
Leisure | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-04-01 | Revenue, Remaining Performance Obligation, Period Two  
Segment Reporting Information [Line Items]  
Remaining performance obligation period 5 years
Other  
Segment Reporting Information [Line Items]  
Remaining performance obligations $ 10.0
Other | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01 | Revenue, Remaining Performance Obligation, Period One  
Segment Reporting Information [Line Items]  
Remaining performance obligations $ 10.0
Remaining performance obligation period 1 year
Other | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01 | Revenue, Remaining Performance Obligation, Period Two  
Segment Reporting Information [Line Items]  
Remaining performance obligations $ 0.0
Other | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-04-01 | Revenue, Remaining Performance Obligation, Period Two  
Segment Reporting Information [Line Items]  
Remaining performance obligation period 5 years