INVENTORIES (Details) - USD ($) $ in Thousands	Dec. 25, 2016	Dec. 27, 2015
Inventory [Line Items]
Total inventories	$ 813,262	$ 801,357
Chicken inventories [Member]
Inventory [Line Items]
Total inventories	795,652	772,909
Live chicken and hens [Member]
Inventory [Line Items]
Total inventories	362,054	365,062
Feed, eggs and other [Member]
Inventory [Line Items]
Total inventories	250,680	215,859
Finished chicken products [Member]
Inventory [Line Items]
Total inventories	182,918	191,988
Commercial feed, table eggs and other [Member]
Inventory [Line Items]
Total inventories	$ 17,610	$ 28,448