Quarterly report pursuant to Section 13 or 15(d)

Discontinued Operations (Details)

v3.8.0.1
Discontinued Operations (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Costs and Expenses [Abstract]    
Total costs and expenses $ 177,181 $ 132,714
Gains (Losses) on Asset Dispositions and Impairments, Net $ 7,045 (188)
Net Income (Loss)   (5,448)
Offshore Marine Services [Member]    
Operating Revenues   34,304
Costs and Expenses [Abstract]    
Operating   33,379
Administrative and general   11,826
Depreciation and amortization   12,503
Total costs and expenses   57,708
Gains (Losses) on Asset Dispositions and Impairments, Net   4,819
Operating Income (Loss)   (18,585)
Other Income (Expense), Net   7,126
Income Tax Expense (Benefit)   (3,422)
Equity in Earnings (Losses) of 50% or Less Owned Companies   438
Net Income (Loss)   (7,599)
Net Income (Loss) Attributable to Noncontrolling Interests   (204)
Illinois Corn Processing LLC [Member]    
Operating Revenues   38,385
Costs and Expenses [Abstract]    
Operating   36,101
Administrative and general   746
Depreciation and amortization   1,175
Total costs and expenses   38,022
Operating Income (Loss)   363
Other Income (Expense), Net   1,848
Income Tax Expense (Benefit)   735
Net Income (Loss)   1,476
Net Income (Loss) Attributable to Noncontrolling Interests   376
Intersegment Eliminations [Member]    
Operating Revenues   (656)
Costs and Expenses [Abstract]    
Operating   (728)
Administrative and general   (23)
Total costs and expenses   (751)
Operating Income (Loss)   95
Other Income (Expense), Net   943
Income Tax Expense (Benefit)   363
Net Income (Loss)   $ 675