Fair Value Measurements - Narrative (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 27, 2019	Dec. 28, 2018	Dec. 29, 2017	Jun. 28, 2019	Feb. 26, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Proceeds from sale of assets held-for-sale	$ 61.0
Gain on disposal of property, plant and equipment, net	19.8
Asset impairment charges	8.1	$ 35.1	$ 3.7
Goodwill	423.7	423.4	261.9
Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	1.3	85.7
Nonrecurring | United States
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets		45.4
Nonrecurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	1.3	85.7
Nonrecurring | Significant Unobservable Inputs (Level 3) | United States
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets		45.4
Nonrecurring | Underutilized assets | Central America
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset impairment charges		2.2
Assets		6.5
Nonrecurring | Underutilized assets | Significant Unobservable Inputs (Level 3) | Central America
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets		6.5
Nonrecurring | Trademarks and Trade Names | Significant Unobservable Inputs (Level 3) | Europe, Middle East, North Africa and United Kingdom [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset impairment charges		11.3
Assets		31.9
Mann Packing
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill	162.0
Subsidiary | Mann Packing
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Percentage of voting interests acquired					25.00%
Contract termination costs | Philippines
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset impairment charges		1.9
Fresh and Value-Added Products
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill	359.3	358.9	$ 197.2
Fresh and Value-Added Products | Underutilized assets | Central America
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset impairment charges		0.5
Fresh and Value-Added Products | Underutilized assets | United States
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset impairment charges		1.0
Property, Plant and Equipment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets held-for-sale	7.6	45.4
Property, Plant and Equipment | Saudi Arabia
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets held-for-sale	5.1
Property, Plant and Equipment | Chile
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets held-for-sale	1.7
Property, Plant and Equipment | Nicaragua
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets held-for-sale	0.8
Reported Value Measurement | Nonrecurring | Underutilized assets | Central America
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets		$ 8.7
Equity Investment | Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	1.3
Equity Investment | Nonrecurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset impairment charges	2.9
Assets	$ 1.3			$ 1.3
Equity Investment | Reported Value Measurement | Nonrecurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets				$ 4.2