Quarterly report pursuant to Section 13 or 15(d)

Segment Information - Revenues from Contracts with Customers (Details)

v3.19.1
Segment Information - Revenues from Contracts with Customers (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Time charter, bareboat charter and rental income $ 61,154 $ 50,539
Operating Revenues 209,524 184,824
Voyage Charters    
Revenues from contracts with customers 9,314 16,501
Contracts of Affreightment    
Revenues from contracts with customers 52,714 45,296
Tariff    
Revenues from contracts with customers 20,996 18,001
Unit Freight    
Revenues from contracts with customers 16,012 13,384
Terminal Operations    
Revenues from contracts with customers 5,480 5,746
Fleeting Operations    
Revenues from contracts with customers 4,070 4,211
Logistics Services    
Revenues from contracts with customers 3,538 2,815
Time and Material Contracts    
Revenues from contracts with customers 29,946 23,625
Retainer Contracts    
Revenues from contracts with customers 2,405 2,383
Product Sales    
Revenues from contracts with customers 1,310  
Other    
Revenues from contracts with customers 2,585 2,323
Product    
Cost of goods sold 1,100  
Ocean Services    
Operating Revenues 109,272 102,384
Inland Services    
Operating Revenues 65,602 55,921
Witt O'Brien's LLC    
Operating Revenues 32,845 26,403
Other Segments    
Operating Revenues 1,805 116
Operating Segments | Ocean Services    
Time charter, bareboat charter and rental income 58,286 48,640
Operating Revenues 109,272 102,384
Operating Segments | Ocean Services | Voyage Charters    
Revenues from contracts with customers 9,314 16,501
Operating Segments | Ocean Services | Contracts of Affreightment    
Revenues from contracts with customers 3,730 5,006
Operating Segments | Ocean Services | Tariff    
Revenues from contracts with customers 20,996 18,001
Operating Segments | Ocean Services | Unit Freight    
Revenues from contracts with customers 16,012 13,384
Operating Segments | Ocean Services | Terminal Operations    
Revenues from contracts with customers 0 0
Operating Segments | Ocean Services | Fleeting Operations    
Revenues from contracts with customers 0 0
Operating Segments | Ocean Services | Logistics Services    
Revenues from contracts with customers 0 0
Operating Segments | Ocean Services | Time and Material Contracts    
Revenues from contracts with customers 0 0
Operating Segments | Ocean Services | Retainer Contracts    
Revenues from contracts with customers 0 0
Operating Segments | Ocean Services | Product Sales    
Revenues from contracts with customers 0  
Operating Segments | Ocean Services | Other    
Revenues from contracts with customers 934 852
Operating Segments | Inland Services    
Time charter, bareboat charter and rental income 2,628 1,899
Operating Revenues 65,602 55,921
Operating Segments | Inland Services | Voyage Charters    
Revenues from contracts with customers 0 0
Operating Segments | Inland Services | Contracts of Affreightment    
Revenues from contracts with customers 48,984 40,290
Operating Segments | Inland Services | Tariff    
Revenues from contracts with customers 0 0
Operating Segments | Inland Services | Unit Freight    
Revenues from contracts with customers 0 0
Operating Segments | Inland Services | Terminal Operations    
Revenues from contracts with customers 5,480 5,746
Operating Segments | Inland Services | Fleeting Operations    
Revenues from contracts with customers 4,070 4,211
Operating Segments | Inland Services | Logistics Services    
Revenues from contracts with customers 3,538 2,815
Operating Segments | Inland Services | Time and Material Contracts    
Revenues from contracts with customers 0 0
Operating Segments | Inland Services | Retainer Contracts    
Revenues from contracts with customers 0 0
Operating Segments | Inland Services | Product Sales    
Revenues from contracts with customers 0  
Operating Segments | Inland Services | Other    
Revenues from contracts with customers 902 960
Operating Segments | Witt O'Brien's LLC    
Time charter, bareboat charter and rental income 0 0
Operating Revenues 32,943 26,432
Operating Segments | Witt O'Brien's LLC | Voyage Charters    
Revenues from contracts with customers 0 0
Operating Segments | Witt O'Brien's LLC | Contracts of Affreightment    
Revenues from contracts with customers 0 0
Operating Segments | Witt O'Brien's LLC | Tariff    
Revenues from contracts with customers 0 0
Operating Segments | Witt O'Brien's LLC | Unit Freight    
Revenues from contracts with customers 0 0
Operating Segments | Witt O'Brien's LLC | Terminal Operations    
Revenues from contracts with customers 0 0
Operating Segments | Witt O'Brien's LLC | Fleeting Operations    
Revenues from contracts with customers 0 0
Operating Segments | Witt O'Brien's LLC | Logistics Services    
Revenues from contracts with customers 0 0
Operating Segments | Witt O'Brien's LLC | Time and Material Contracts    
Revenues from contracts with customers 29,946 23,625
Operating Segments | Witt O'Brien's LLC | Retainer Contracts    
Revenues from contracts with customers 2,405 2,383
Operating Segments | Witt O'Brien's LLC | Product Sales    
Revenues from contracts with customers 0  
Operating Segments | Witt O'Brien's LLC | Other    
Revenues from contracts with customers 592 424
Operating Segments | Other Segments    
Time charter, bareboat charter and rental income 240 0
Operating Revenues 1,805 116
Operating Segments | Other Segments | Voyage Charters    
Revenues from contracts with customers 0 0
Operating Segments | Other Segments | Contracts of Affreightment    
Revenues from contracts with customers 0 0
Operating Segments | Other Segments | Tariff    
Revenues from contracts with customers 0 0
Operating Segments | Other Segments | Unit Freight    
Revenues from contracts with customers 0 0
Operating Segments | Other Segments | Terminal Operations    
Revenues from contracts with customers 0 0
Operating Segments | Other Segments | Fleeting Operations    
Revenues from contracts with customers 0 0
Operating Segments | Other Segments | Logistics Services    
Revenues from contracts with customers 0 0
Operating Segments | Other Segments | Time and Material Contracts    
Revenues from contracts with customers 0 0
Operating Segments | Other Segments | Retainer Contracts    
Revenues from contracts with customers 0 0
Operating Segments | Other Segments | Product Sales    
Revenues from contracts with customers 1,310  
Operating Segments | Other Segments | Other    
Revenues from contracts with customers 255 116
Corporate And Eliminations    
Time charter, bareboat charter and rental income 0 0
Operating Revenues (98) (29)
Corporate And Eliminations | Voyage Charters    
Revenues from contracts with customers 0 0
Corporate And Eliminations | Contracts of Affreightment    
Revenues from contracts with customers 0 0
Corporate And Eliminations | Tariff    
Revenues from contracts with customers 0 0
Corporate And Eliminations | Unit Freight    
Revenues from contracts with customers 0 0
Corporate And Eliminations | Terminal Operations    
Revenues from contracts with customers 0 0
Corporate And Eliminations | Fleeting Operations    
Revenues from contracts with customers 0 0
Corporate And Eliminations | Logistics Services    
Revenues from contracts with customers 0 0
Corporate And Eliminations | Time and Material Contracts    
Revenues from contracts with customers 0 0
Corporate And Eliminations | Retainer Contracts    
Revenues from contracts with customers 0 0
Corporate And Eliminations | Product Sales    
Revenues from contracts with customers 0  
Corporate And Eliminations | Other    
Revenues from contracts with customers $ (98) $ (29)