Fair Value Measurements (Details) - Recurring - USD ($) $ in Thousands	Oct. 07, 2018	Dec. 31, 2017
Financial assets
Derivatives		$ 190
Financial liabilities
Total	$ (9,873)	(12,324)
Deferred compensation plan
Financial liabilities
Other long-term liabilities	(19,951)	(18,938)
Deferred compensation plan investment in Sprouts
Financial assets
Other assets		2,387
Deferred compensation plan investment in Sprouts and other
Financial assets
Other assets	6,027
Cash and cash equivalents that fund supplemental executive retirement plan and deferred compensation plan
Financial assets
Other assets	546	540
Assets that fund supplemental executive retirement plan
Financial assets
Other assets	3,505	3,497
Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial liabilities
Total	7,525	4,156
Quoted Prices in Active Markets for Identical Assets (Level 1) | Deferred compensation plan
Financial liabilities
Other long-term liabilities	(2,553)	(2,268)
Quoted Prices in Active Markets for Identical Assets (Level 1) | Deferred compensation plan investment in Sprouts
Financial assets
Other assets		2,387
Quoted Prices in Active Markets for Identical Assets (Level 1) | Deferred compensation plan investment in Sprouts and other
Financial assets
Other assets	6,027
Quoted Prices in Active Markets for Identical Assets (Level 1) | Cash and cash equivalents that fund supplemental executive retirement plan and deferred compensation plan
Financial assets
Other assets	546	540
Quoted Prices in Active Markets for Identical Assets (Level 1) | Assets that fund supplemental executive retirement plan
Financial assets
Other assets	3,505	3,497
Significant Other Observable Inputs (Level 2)
Financial assets
Derivatives		190
Financial liabilities
Total	(17,398)	(16,480)
Significant Other Observable Inputs (Level 2) | Deferred compensation plan
Financial liabilities
Other long-term liabilities	$ (17,398)	$ (16,670)