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Inventories (Tables)
9 Months Ended
Sep. 30, 2017
Inventory, Net [Abstract]  
Classes of inventories
Major classes of inventories are as follows:
(in thousands)
September 30,
2017
 
December 31,
2016
 
September 30,
2016
Grain
$
342,837

 
$
495,139

 
$
262,165

Ethanol and co-products
12,502

 
10,887

 
7,734

Plant nutrients and cob products
114,131

 
150,259

 
126,922

Retail merchandise
718

 
20,678

 
24,985

Railcar repair parts
5,414

 
5,784

 
5,948

 
$
475,602

 
$
682,747

 
$
427,754