Annual report pursuant to Section 13 and 15(d)

Major Customers And Segment Information (Operating Results, Capital Expenditures And Assets By Reportable Segments) (Details)

v3.8.0.1
Major Customers And Segment Information (Operating Results, Capital Expenditures And Assets By Reportable Segments) (Details) - USD ($)
3 Months Ended 12 Months Ended
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Segment Reporting Information [Line Items]                      
Operating Revenues $ (185,515,000) $ (158,171,000) $ (115,791,000) $ (118,414,000) $ (126,196,000) $ (109,570,000) $ (99,647,000) $ (105,052,000) $ (577,891,000) $ (440,465,000) $ (521,987,000)
Administrative and general                 103,106,000 86,362,000 101,343,000
Depreciation and amortization                 75,058,000 62,565,000 60,356,000
Total costs and expenses                 539,045,000 424,182,000 493,307,000
(Gains) Losses on asset dispositions and impairments, net                 11,637,000 (25,983,000) 14,609,000
Operating Income (Loss) 22,983,000 $ 15,090,000 $ 8,993,000 $ 3,417,000 (21,950,000) 5,609,000 $ 1,802,000 $ 4,839,000 50,483,000 (9,700,000) 43,289,000
Derivative gains (losses), net                 19,727,000 (14,131,000) 1,921,000
Foreign currency gains (losses), net                 323,000 1,444,000 (4,725,000)
Other, net                 256,000 (18,716,000) 2,400,000
Income (Loss) from Equity Method Investments                 2,952,000 (21,040,000) (49,171,000)
Income Before Income Tax Expense (Benefit) and Equity in Earnings of 50% or Less Owned Companies                 35,205,000 (92,236,000) (1,751,000)
Payments to Acquire Property, Plant, and Equipment                 114,595,000 252,806,000 203,453,000
Property, Plant and Equipment, Gross 1,351,741,000       1,178,556,000       1,351,741,000 1,178,556,000  
Accumulated depreciation (502,544,000)       (444,559,000)       (502,544,000) (444,559,000)  
Construction in progress 28,728,000       246,010,000       28,728,000 246,010,000  
Net property and equipment 877,925,000       980,007,000       877,925,000 980,007,000  
Investments, at Equity, and Advances to 50% or Less Owned Companies 173,441,000       175,461,000       173,441,000 175,461,000  
Inventories 4,377,000       2,582,000       4,377,000 2,582,000  
Goodwill 32,761,000       32,758,000       32,761,000 32,758,000  
Intangible Assets 28,106,000       20,078,000       28,106,000 20,078,000  
Total Assets 1,613,336,000       2,862,321,000       1,613,336,000 2,862,321,000 3,185,419,000
Inland River Services [Member]                      
Segment Reporting Information [Line Items]                      
Operating Revenues                 (175,496,000) (167,543,000) (230,482,000)
Property, Plant and Equipment, Gross 445,293,000       419,714,000       445,293,000 419,714,000  
Net property and equipment 263,720,000       252,587,000       263,720,000 252,587,000  
Shipping Services [Member]                      
Segment Reporting Information [Line Items]                      
Operating Revenues                 (352,876,000) (229,643,000) (227,142,000)
Property, Plant and Equipment, Gross 875,090,000       727,602,000       875,090,000 727,602,000  
Net property and equipment 575,562,000       469,598,000       575,562,000 469,598,000  
Witt O'Brien's LLC [Member]                      
Segment Reporting Information [Line Items]                      
Operating Revenues                 (49,055,000) (42,797,000) (49,857,000)
Other Segments [Member]                      
Segment Reporting Information [Line Items]                      
Operating Revenues                 (464,000) (482,000) (14,506,000)
Corporate And Eliminations [Member]                      
Segment Reporting Information [Line Items]                      
Operating Revenues                 0 0 0
Operating Segments [Member]                      
Segment Reporting Information [Line Items]                      
Operating Revenues                 (577,891,000) (440,465,000) (521,987,000)
Operating Expenses                 360,881,000 275,255,000 331,608,000
Administrative and general                 103,106,000 86,362,000 101,343,000
Depreciation and amortization                 75,058,000 62,565,000 60,356,000
Total costs and expenses                 539,045,000 424,182,000 493,307,000
(Gains) Losses on asset dispositions and impairments, net                 11,637,000 (25,983,000) 14,609,000
Operating Income (Loss)                 50,483,000 (9,700,000) 43,289,000
Derivative gains (losses), net                 19,727,000 (14,131,000) 1,921,000
Foreign currency gains (losses), net                 323,000 1,444,000 (4,725,000)
Other, net                 256,000 (18,716,000) 2,400,000
Income (Loss) from Equity Method Investments                 2,952,000 (21,040,000) (49,171,000)
Payments to Acquire Property, Plant, and Equipment                 114,595,000 252,806,000 203,453,000
Property, Plant and Equipment, Gross 1,351,741,000       1,178,556,000       1,351,741,000 1,178,556,000 973,326,000
Accumulated depreciation (502,544,000)       (444,559,000)       (502,544,000) (444,559,000) (427,829,000)
Property, Plant and Equipment, Net In Service 849,197,000       733,997,000       849,197,000 733,997,000 545,497,000
Construction in progress 28,728,000       246,010,000       28,728,000 246,010,000 351,275,000
Net property and equipment 877,925,000       980,007,000       877,925,000 980,007,000 896,772,000
Investments, at Equity, and Advances to 50% or Less Owned Companies 173,441,000       175,461,000       173,441,000 175,461,000 201,093,000
Inventories 4,377,000       2,582,000       4,377,000 2,582,000 2,194,000
Goodwill 32,761,000       32,758,000       32,761,000 32,758,000 52,340,000
Intangible Assets 28,106,000       20,078,000       28,106,000 20,078,000 25,343,000
Other current and long-term assets, excluding cash and near cash assets 160,398,000       165,019,000       160,398,000 165,019,000 138,347,000
Operating Segments [Member] | Inland River Services [Member]                      
Segment Reporting Information [Line Items]                      
Operating Revenues                 (175,496,000) (167,543,000) (230,482,000)
Operating Expenses                 133,880,000 124,460,000 168,015,000
Administrative and general                 16,558,000 14,616,000 15,567,000
Depreciation and amortization                 25,852,000 26,327,000 28,632,000
Total costs and expenses                 176,290,000 165,403,000 212,214,000
(Gains) Losses on asset dispositions and impairments, net                 11,960,000 3,193,000 14,868,000
Operating Income (Loss)                 11,166,000 5,333,000 33,136,000
Derivative gains (losses), net                 0 0 294,000
Foreign currency gains (losses), net                 272,000 1,722,000 (3,726,000)
Other, net                 0 (4,000) 0
Income (Loss) from Equity Method Investments                 (5,191,000) (15,944,000) (31,200,000)
Segment Profit (Loss)                 6,247,000 (8,893,000) (1,496,000)
Payments to Acquire Property, Plant, and Equipment                 34,322,000 36,803,000 69,736,000
Property, Plant and Equipment, Gross 445,293,000       419,714,000       445,293,000 419,714,000 485,144,000
Accumulated depreciation (181,573,000)       (167,127,000)       (181,573,000) (167,127,000) (171,271,000)
Property, Plant and Equipment, Net In Service 263,720,000       252,587,000       263,720,000 252,587,000 313,873,000
Construction in progress 2,742,000       13,003,000       2,742,000 13,003,000 17,807,000
Net property and equipment 266,462,000       265,590,000       266,462,000 265,590,000 331,680,000
Investments, at Equity, and Advances to 50% or Less Owned Companies 66,479,000       69,181,000       66,479,000 69,181,000 81,363,000
Inventories 1,934,000       1,602,000       1,934,000 1,602,000 1,493,000
Goodwill 2,403,000       2,400,000       2,403,000 2,400,000 2,364,000
Intangible Assets 10,486,000       12,018,000       10,486,000 12,018,000 5,961,000
Other current and long-term assets, excluding cash and near cash assets 71,500,000       88,165,000       71,500,000 88,165,000 72,180,000
Total Assets 419,264,000       438,956,000       419,264,000 438,956,000 495,041,000
Operating Segments [Member] | Shipping Services [Member]                      
Segment Reporting Information [Line Items]                      
Operating Revenues                 (352,876,000) (229,643,000) (227,142,000)
Operating Expenses                 195,285,000 122,631,000 129,039,000
Administrative and general                 36,548,000 27,825,000 26,215,000
Depreciation and amortization                 46,073,000 31,162,000 26,296,000
Total costs and expenses                 277,906,000 181,618,000 181,550,000
(Gains) Losses on asset dispositions and impairments, net                 (323,000) 411,000 0
Operating Income (Loss)                 74,647,000 48,436,000 45,592,000
Derivative gains (losses), net                 0 0 0
Foreign currency gains (losses), net                 (130,000) (18,000) (30,000)
Other, net                 327,000 (6,224,000) 2,053,000
Income (Loss) from Equity Method Investments                 7,664,000 (4,697,000) (18,782,000)
Segment Profit (Loss)                 82,508,000 37,497,000 28,833,000
Payments to Acquire Property, Plant, and Equipment                 80,006,000 215,837,000 134,581,000
Property, Plant and Equipment, Gross 875,090,000       727,602,000       875,090,000 727,602,000 454,144,000
Accumulated depreciation (299,528,000)       (258,004,000)       (299,528,000) (258,004,000) (239,076,000)
Property, Plant and Equipment, Net In Service 575,562,000       469,598,000       575,562,000 469,598,000 215,068,000
Construction in progress 25,986,000       233,214,000       25,986,000 233,214,000 335,113,000
Net property and equipment 601,548,000       702,812,000       601,548,000 702,812,000 550,181,000
Investments, at Equity, and Advances to 50% or Less Owned Companies 52,003,000       51,620,000       52,003,000 51,620,000 64,499,000
Inventories 2,352,000       843,000       2,352,000 843,000 701,000
Goodwill 1,852,000       1,852,000       1,852,000 1,852,000 1,852,000
Intangible Assets 10,293,000       0       10,293,000 0 0
Other current and long-term assets, excluding cash and near cash assets 49,498,000       29,801,000       49,498,000 29,801,000 28,359,000
Total Assets 717,546,000       786,928,000       717,546,000 786,928,000 645,592,000
Operating Segments [Member] | Witt O'Brien's LLC [Member]                      
Segment Reporting Information [Line Items]                      
Operating Revenues                 (49,156,000) (42,916,000) (49,984,000)
Operating Expenses                 32,017,000 28,561,000 21,899,000
Administrative and general                 13,438,000 16,214,000 24,096,000
Depreciation and amortization                 819,000 1,539,000 1,711,000
Total costs and expenses                 46,274,000 46,314,000 47,706,000
(Gains) Losses on asset dispositions and impairments, net                 0 (29,587,000) (27,000)
Operating Income (Loss)                 2,882,000 (32,985,000) 2,251,000
Derivative gains (losses), net                 0 0 0
Foreign currency gains (losses), net                 50,000 (181,000) (36,000)
Other, net                 0 0 19,000
Income (Loss) from Equity Method Investments                 174,000 305,000 135,000
Segment Profit (Loss)                 3,106,000 (32,861,000) 2,369,000
Payments to Acquire Property, Plant, and Equipment                 60,000 2,000 409,000
Property, Plant and Equipment, Gross 1,227,000       1,559,000       1,227,000 1,559,000 3,338,000
Accumulated depreciation (938,000)       (1,244,000)       (938,000) (1,244,000) (2,834,000)
Property, Plant and Equipment, Net In Service 289,000       315,000       289,000 315,000 504,000
Construction in progress 0       0       0 0 0
Net property and equipment 289,000       315,000       289,000 315,000 504,000
Investments, at Equity, and Advances to 50% or Less Owned Companies 777,000       566,000       777,000 566,000 344,000
Inventories 91,000       137,000       91,000 137,000 0
Goodwill 28,506,000       28,506,000       28,506,000 28,506,000 48,124,000
Intangible Assets 7,327,000       8,060,000       7,327,000 8,060,000 19,382,000
Other current and long-term assets, excluding cash and near cash assets 28,398,000       14,284,000       28,398,000 14,284,000 14,780,000
Total Assets 65,388,000       51,868,000       65,388,000 51,868,000 83,134,000
Operating Segments [Member] | Other Segments [Member]                      
Segment Reporting Information [Line Items]                      
Operating Revenues                 (464,000) (482,000) (14,506,000)
Operating Expenses                 0 0 13,054,000
Administrative and general                 831,000 1,001,000 2,546,000
Depreciation and amortization                 0 0 5,000
Total costs and expenses                 831,000 1,001,000 15,605,000
(Gains) Losses on asset dispositions and impairments, net                 0 0 (232,000)
Operating Income (Loss)                 (367,000) (519,000) (1,331,000)
Derivative gains (losses), net                 0 0 (472,000)
Foreign currency gains (losses), net                 6,000 (1,000) (11,000)
Other, net                 (301,000) (12,608,000) 33,000
Income (Loss) from Equity Method Investments                 305,000 (704,000) 676,000
Segment Profit (Loss)                 (357,000) (13,832,000) (1,105,000)
Payments to Acquire Property, Plant, and Equipment                 0 0 0
Property, Plant and Equipment, Gross 0       0       0 0 0
Accumulated depreciation 0       0       0 0 0
Property, Plant and Equipment, Net In Service 0       0       0 0 0
Construction in progress 0       0       0 0 0
Net property and equipment 0       0       0 0 0
Investments, at Equity, and Advances to 50% or Less Owned Companies 54,182,000       54,094,000       54,182,000 54,094,000 54,887,000
Inventories 0       0       0 0 0
Goodwill 0       0       0 0 0
Intangible Assets 0       0       0 0 0
Other current and long-term assets, excluding cash and near cash assets 1,391,000       11,193,000       1,391,000 11,193,000 16,014,000
Total Assets 55,573,000       65,287,000       55,573,000 65,287,000 70,901,000
Operating Segments [Member] | Corporate And Eliminations [Member]                      
Segment Reporting Information [Line Items]                      
Operating Revenues                 101,000 119,000 127,000
Operating Expenses                 (301,000) (397,000) (399,000)
Administrative and general                 35,731,000 26,706,000 32,919,000
Depreciation and amortization                 2,314,000 3,537,000 3,712,000
Total costs and expenses                 37,744,000 29,846,000 36,232,000
(Gains) Losses on asset dispositions and impairments, net                 0 0 0
Operating Income (Loss)                 (37,845,000) (29,965,000) (36,359,000)
Derivative gains (losses), net                 19,727,000 (14,131,000) 2,099,000
Foreign currency gains (losses), net                 125,000 (78,000) (922,000)
Other, net                 230,000 120,000 295,000
Income (Loss) from Equity Method Investments                 0 0 0
Payments to Acquire Property, Plant, and Equipment                 207,000 164,000  
Property, Plant and Equipment, Gross 30,131,000       29,681,000       30,131,000 29,681,000 30,700,000
Accumulated depreciation (20,505,000)         (18,184,000)     (20,505,000)   14,648,000
Property, Plant and Equipment, Net In Service 9,626,000       11,497,000       9,626,000 11,497,000 16,052,000
Construction in progress 0       (207,000)       0 (207,000) (1,645,000)
Net property and equipment 9,626,000       11,290,000       9,626,000 11,290,000 14,407,000
Investments, at Equity, and Advances to 50% or Less Owned Companies 0       0       0 0 0
Inventories 0       0       0 0 0
Goodwill 0       0       0 0 0
Intangible Assets 0       0       0 0 0
Other current and long-term assets, excluding cash and near cash assets 9,611,000         $ 21,576,000     9,611,000   7,014,000
Intersegment Eliminations [Member]                      
Segment Reporting Information [Line Items]                      
Operating Revenues                 0 0 0
Intersegment Eliminations [Member] | Inland River Services [Member]                      
Segment Reporting Information [Line Items]                      
Operating Revenues                 0 0 0
Intersegment Eliminations [Member] | Shipping Services [Member]                      
Segment Reporting Information [Line Items]                      
Operating Revenues                 0 0 0
Intersegment Eliminations [Member] | Witt O'Brien's LLC [Member]                      
Segment Reporting Information [Line Items]                      
Operating Revenues                 101,000 (119,000) (127,000)
Intersegment Eliminations [Member] | Other Segments [Member]                      
Segment Reporting Information [Line Items]                      
Operating Revenues                 0 0 0
Intersegment Eliminations [Member] | Corporate And Eliminations [Member]                      
Segment Reporting Information [Line Items]                      
Operating Revenues                 (101,000) 119,000 127,000
Segment Reconciling Items [Member]                      
Segment Reporting Information [Line Items]                      
Other Income (Expense) not included in Segment Profit                 35,584,000 51,133,000 44,636,000
Less Equity Earnings included in Segment Profit                 (2,952,000) 21,040,000 49,171,000
Cash and near cash assets $ 336,328,000       $ 410,777,000       $ 336,328,000 $ 410,777,000 $ 582,633,000