Quarterly report pursuant to Section 13 or 15(d)

Operating Segments - Additional Information (Details)

v3.20.2
Operating Segments - Additional Information (Details)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2019
Vechicle
Jun. 30, 2020
segment
Vechicle
Jun. 30, 2019
Vechicle
Dec. 31, 2019
segment
Segment Reporting Information [Line Items]        
Number of operating segments   2   3
Number of corporate non-operating segments   1   1
Forty-Vehicle Ferry        
Segment Reporting Information [Line Items]        
Number of vehicle ferry projects | Vechicle 2 2 2