Financing Receivables - Allowance for Doubtful Accounts and Related Financing Receivables (Details) - Advances to Growers - USD ($) $ in Millions	12 Months Ended
	Dec. 27, 2019	Dec. 28, 2018
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for advances to growers and suppliers, beginning of period	$ 2.8	$ 2.9
Provision for uncollectible amounts	0.0	0.8
Deductions to allowance including recoveries	(0.7)	(0.9)
Allowance for advances to growers and suppliers, end of period	$ 2.1	$ 2.8