Inventory (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Inventory [Line Items]
Inventory	$ 19,146	$ 21,139
Supplies, embryos and other production materials
Inventory [Line Items]
Inventory	2,112	1,835
Work in process
Inventory [Line Items]
Inventory	4,883	5,466
Livestock
Inventory [Line Items]
Inventory	10,850	11,752
Feed
Inventory [Line Items]
Inventory	$ 1,301	$ 2,086