Legal Proceedings - Additional Information (Detail)			6 Months Ended
	Jun. 18, 2017 Case	Sep. 19, 2013 Case	Jun. 30, 2017 Case Employee
Commitments And Contingencies Disclosure [Abstract]
Number of lawsuits filed			2
Number of banana plantation workers | Employee			2,700
Number of plaintiffs dismissed		14
Number of plaintiffs	57	22