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Inventory - Schedule of Inventory (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Inventory [Line Items]    
Inventory $ 25,789us-gaap_InventoryGross $ 0us-gaap_InventoryGross
Supplies, semen and embryos    
Inventory [Line Items]    
Inventory 1,184us-gaap_InventoryGross
/ us-gaap_PublicUtilitiesInventoryAxis
= xon_SuppliesSemenAndEmbryosMember		  
Work in process    
Inventory [Line Items]    
Inventory 5,637us-gaap_InventoryGross
/ us-gaap_PublicUtilitiesInventoryAxis
= xon_WorkInProcessMember		  
Livestock    
Inventory [Line Items]    
Inventory 16,996us-gaap_InventoryGross
/ us-gaap_PublicUtilitiesInventoryAxis
= xon_LivestockMember		  
Feed    
Inventory [Line Items]    
Inventory $ 1,972us-gaap_InventoryGross
/ us-gaap_PublicUtilitiesInventoryAxis
= xon_FeedMember