Other Comprehensive Income (Schedule of OCI) (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2017	Apr. 02, 2016
Before-Tax Amount:
Amortization of prior service cost	$ 9	$ 7
Amortization of actuarial loss	1,203	1,168
Total defined benefit pension plans	1,212	1,175
Loss activity recognized in other comprehensive loss	(600)
Other Comprehensive income (loss)	15,091	57,552
Tax (Expense) or Benefit:
Amortization of prior service cost	(3)	(3)
Amortization of actuarial loss	(450)	(446)
Total defined benefit pension plans	(453)	(449)
Loss activity recognized in other comprehensive loss	(200)	100
Other Comprehensive income (loss)	245	(1)
Net-of-Tax Amount:
Amortization of prior service cost	6	4
Amortization of actuarial loss	753	722
Total defined benefit pension plans	759	726
Loss activity recognized in other comprehensive loss		300
Foreign currency translation	15,679	57,531
Net current-period other comprehensive income	15,336	57,551
Corn Option [Member]
Before-Tax Amount:
Loss reclassified to net income	(1,185)	(1,474)
Loss activity recognized in other comprehensive loss	(615)	320
Total swap derivatives	(1,800)	(1,154)
Tax (Expense) or Benefit:
Loss reclassified to net income	460	572
Loss activity recognized in other comprehensive loss	238	(124)
Total swap derivatives	698	448
Net-of-Tax Amount:
Loss reclassified to net income	(725)	(902)
Loss activity recognized in other comprehensive loss	(377)	196
Total swap derivatives	(1,102)	(706)
Accumulated Other Comprehensive Income (Loss) [Member]
Before-Tax Amount:
Foreign currency translation	15,679	57,531
Tax (Expense) or Benefit:
Foreign currency translation	0	0
Net-of-Tax Amount:
Foreign currency translation	$ 15,679	$ 57,531