Quarterly report pursuant to Section 13 or 15(d)

Segment Information - Revenues from Contracts with Customers (Details)

v3.20.1
Segment Information - Revenues from Contracts with Customers (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Time charter, bareboat charter and rental income $ 48,701 $ 61,154
Operating Revenues 192,296 209,524
Voyage Charters    
Revenues from contracts with customers 16,037 9,314
Contracts of Affreightment    
Revenues from contracts with customers 48,199 52,714
Tariff    
Revenues from contracts with customers 22,571 20,996
Unit Freight    
Revenues from contracts with customers 16,448 16,012
Terminal Operations    
Revenues from contracts with customers 5,724 5,480
Fleeting Operations    
Revenues from contracts with customers 4,354 4,070
Logistics Services    
Revenues from contracts with customers 3,287 3,538
Time and Material Contracts    
Revenues from contracts with customers 19,206 29,946
Retainer Contracts    
Revenues from contracts with customers 2,554 2,405
Product Sales    
Revenues from contracts with customers 1,657 1,310
Other    
Revenues from contracts with customers 3,558 2,585
Ocean Services    
Operating Revenues 106,115 109,272
Inland Services    
Operating Revenues 61,311 65,602
Witt O'Brien's LLC    
Operating Revenues 22,471 32,845
Other Segment    
Operating Revenues 2,399 1,805
Operating Segments | Ocean Services    
Time charter, bareboat charter and rental income 45,613 58,286
Operating Revenues 106,115 109,272
Operating Segments | Ocean Services | Voyage Charters    
Revenues from contracts with customers 16,037 9,314
Operating Segments | Ocean Services | Contracts of Affreightment    
Revenues from contracts with customers 4,496 3,730
Operating Segments | Ocean Services | Tariff    
Revenues from contracts with customers 22,571 20,996
Operating Segments | Ocean Services | Unit Freight    
Revenues from contracts with customers 16,448 16,012
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 0
Operating Segments | Ocean Services | Other    
Revenues from contracts with customers 950 934
Operating Segments | Inland Services    
Time charter, bareboat charter and rental income 2,986 2,628
Operating Revenues 61,311 65,602
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 43,703 48,984
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 5,724 5,480
Operating Segments | Inland Services | Fleeting Operations    
Revenues from contracts with customers 4,354 4,070
Operating Segments | Inland Services | Logistics Services    
Revenues from contracts with customers 3,287 3,538
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 0
Operating Segments | Inland Services | Other    
Revenues from contracts with customers 1,257 902
Operating Segments | Witt O'Brien's LLC    
Time charter, bareboat charter and rental income 0 0
Operating Revenues 22,506 32,943
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 19,206 29,946
Operating Segments | Witt O'Brien's LLC | Retainer Contracts    
Revenues from contracts with customers 2,554 2,405
Operating Segments | Witt O'Brien's LLC | Product Sales    
Revenues from contracts with customers 0 0
Operating Segments | Witt O'Brien's LLC | Other    
Revenues from contracts with customers 746 592
Operating Segments | Other Segment    
Time charter, bareboat charter and rental income 102 240
Operating Revenues 2,399 1,805
Operating Segments | Other Segment | Voyage Charters    
Revenues from contracts with customers 0 0
Operating Segments | Other Segment | Contracts of Affreightment    
Revenues from contracts with customers 0 0
Operating Segments | Other Segment | Tariff    
Revenues from contracts with customers 0 0
Operating Segments | Other Segment | Unit Freight    
Revenues from contracts with customers 0 0
Operating Segments | Other Segment | Terminal Operations    
Revenues from contracts with customers 0 0
Operating Segments | Other Segment | Fleeting Operations    
Revenues from contracts with customers 0 0
Operating Segments | Other Segment | Logistics Services    
Revenues from contracts with customers 0 0
Operating Segments | Other Segment | Time and Material Contracts    
Revenues from contracts with customers 0 0
Operating Segments | Other Segment | Retainer Contracts    
Revenues from contracts with customers 0 0
Operating Segments | Other Segment | Product Sales    
Revenues from contracts with customers 1,657 1,310
Cost of goods sold 1,400 1,100
Operating Segments | Other Segment | Other    
Revenues from contracts with customers 640 255
Corporate And Eliminations    
Time charter, bareboat charter and rental income 0 0
Operating Revenues (35) (98)
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 0
Corporate And Eliminations | Other    
Revenues from contracts with customers $ (35) $ (98)