Quarterly report pursuant to Section 13 or 15(d)

Commitments And Contingencies (Details)

v3.19.1
Commitments And Contingencies (Details)
$ in Thousands
Apr. 22, 2019
claim
Dec. 15, 2010
claim
Apr. 23, 2019
USD ($)
Mar. 31, 2019
USD ($)
equipment
Aug. 02, 2016
Feb. 16, 2016
Loss Contingencies [Line Items]            
Unrecorded unconditional purchase obligation, due in remainder of fiscal year       $ 19,429    
Unrecorded unconditional purchase obligation, due within two years       9,427    
Unrecorded unconditional purchase obligation       $ 28,856    
Deepwater Horizon Oil Spill Multi District Litigation            
Loss Contingencies [Line Items]            
Claims filed | claim   1        
Pending claims         11 11
Subsequent Event            
Loss Contingencies [Line Items]            
Unrecorded unconditional purchase obligation     $ 1,500      
Subsequent Event | BELO/ORM            
Loss Contingencies [Line Items]            
Claims filed | claim 2,250          
Subsequent Event | BELO/NRC            
Loss Contingencies [Line Items]            
Claims filed | claim 210          
Foreign-flag Rail Ferries            
Loss Contingencies [Line Items]            
Number of equipment committed to purchase | equipment       2    
Inland River Towboat            
Loss Contingencies [Line Items]            
Number of equipment committed to purchase | equipment       2    
Ocean Services            
Loss Contingencies [Line Items]            
Unrecorded unconditional purchase obligation, due in remainder of fiscal year       $ 1,378    
Unrecorded unconditional purchase obligation, due within two years       8,388    
Unrecorded unconditional purchase obligation       9,766    
Inland Services            
Loss Contingencies [Line Items]            
Unrecorded unconditional purchase obligation, due in remainder of fiscal year       17,875    
Unrecorded unconditional purchase obligation, due within two years       1,039    
Unrecorded unconditional purchase obligation       18,914    
Other Segments            
Loss Contingencies [Line Items]            
Unrecorded unconditional purchase obligation, due in remainder of fiscal year       176    
Unrecorded unconditional purchase obligation, due within two years       0    
Unrecorded unconditional purchase obligation       $ 176