Litigation (Detail) $ in Millions								3 Months Ended		12 Months Ended
	Oct. 21, 2014 plaintiff	Sep. 18, 2014 plaintiff	Jun. 01, 2012 plaintiff claim	Jan. 02, 2009 plaintiff subsidiary	Jun. 27, 2008 plaintiff	Oct. 14, 2004 plaintiff subsidiary	Sep. 25, 2003 USD ($)	Sep. 27, 2002 USD ($)	Sep. 28, 2001 USD ($)	Jan. 01, 2016 USD ($)	Dec. 26, 2014 USD ($)	Feb. 28, 2011 subsidiary	Dec. 31, 1980 subsidiary
Commitments and Contingencies Disclosure [Line Items]
Number of plaintiffs | plaintiff	2,400
DBCP Litigation
Commitments and Contingencies Disclosure [Line Items]
Number of subsidiaries involved in litigation | subsidiary						2
Number of plaintiffs | plaintiff	57		3,000
Actions filed | claim			8
Claims dismissed | plaintiff		6
DBCP Litigation | Costa Rican Residents
Commitments and Contingencies Disclosure [Line Items]
Number of subsidiaries involved in litigation | subsidiary				3
Number of plaintiffs | plaintiff				461	1,329	2,600
DBCP Litigation | Philippines Residents
Commitments and Contingencies Disclosure [Line Items]
Number of subsidiaries involved in litigation | subsidiary												2
Kunia Well Site
Commitments and Contingencies Disclosure [Line Items]
Number of subsidiaries involved in litigation | subsidiary													1
Kunia Well Site cleanup operation, estimated remediation costs associated with the cleanup								$ 26.1	$ 19.1
Accrual for environmental loss contingencies, estimated payment period							10 years
Kunia Well Site cleanup operation, charge for estimated expected future cleanup cost								$ 7.0	$ 15.0
Kunia Well Site cleanup operation, undiscounted estimated remediation costs associated with the cleanup											$ 15.7
Kunia Well Site cleanup operation, discount rate of accrual for the expected future clean-up costs											4.00%
Kunia Well Site cleanup operation, accrual expected to be paid in the next 12 months										$ 0.7
Kunia Well Site cleanup operation, accrual expected to be paid in the second year										1.7
Kunia Well Site cleanup operation, accrual expected to be paid in the third year										1.7
Kunia Well Site cleanup operation, accrual expected to be paid in the fourth year										0.7
Kunia Well Site cleanup operation, accrual expected to be paid in the fifth year										1.0
Kunia Well Site | Other noncurrent liabilities
Commitments and Contingencies Disclosure [Line Items]
Kunia Well Site cleanup operation, estimated remediation costs associated with the cleanup										13.0
Kunia Well Site | Accounts Payable and Accrued Expenses Current
Commitments and Contingencies Disclosure [Line Items]
Kunia Well Site cleanup operation, estimated remediation costs associated with the cleanup										0.7
Kunia Well Site | Minimum
Commitments and Contingencies Disclosure [Line Items]
Kunia Well Site cleanup operation, estimated remediation costs associated with the cleanup							$ 12.9
Kunia Well Site cleanup operation, undiscounted estimated remediation costs associated with the cleanup											$ 14.8
Kunia Well Site | Maximum
Commitments and Contingencies Disclosure [Line Items]
Kunia Well Site cleanup operation, estimated remediation costs associated with the cleanup							$ 25.4
Kunia Well Site cleanup operation, undiscounted estimated remediation costs associated with the cleanup											28.7
Other Fresh Produce | Discount Rate Adjustment
Commitments and Contingencies Disclosure [Line Items]
Other increase (decrease) in environmental liabilities											$ (1.4)
Other Fresh Produce | Hawaii | Discount Rate Adjustment
Commitments and Contingencies Disclosure [Line Items]
Other increase (decrease) in environmental liabilities										$ (0.8)