Annual report pursuant to Section 13 and 15(d)

Revenue, Contract Assets and Liabilities and Other Contract Matters - Summary of Contract with Customer, Asset and Liability (Parenthetical) (Details)

v3.22.1
Revenue, Contract Assets and Liabilities and Other Contract Matters - Summary of Contract with Customer, Asset and Liability (Parenthetical) (Details)
$ in Millions
12 Months Ended
Dec. 31, 2021
USD ($)
Vechicle
Dec. 31, 2020
USD ($)
Vechicle
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]    
Contract with customer, asset, revenue recognized in excess of amounts billed, current $ 1.1 $ 2.3
Contract with customer, liability, revenue recognized 3.7 9.9
Contract with customer, liability, accrued contract losses, current $ 3.9 $ 5.4
Forty-Vehicle Ferry    
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]    
Number of vehicle ferry projects | Vechicle 2 2