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Inventory (Details) - USD ($)
$ in Thousands
Sep. 30, 2019
Dec. 31, 2018
Inventory [Line Items]    
Inventory $ 17,295 $ 21,447
Supplies, embryos and other production materials    
Inventory [Line Items]    
Inventory 3,461 4,729
Work in process    
Inventory [Line Items]    
Inventory 4,656 4,391
Livestock    
Inventory [Line Items]    
Inventory 6,505 10,167
Feed    
Inventory [Line Items]    
Inventory $ 2,673 $ 2,160