Other Comprehensive Income (Schedule of OCI) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2016	Jul. 04, 2015	Jul. 02, 2016	Jul. 04, 2015
Before-Tax Amount:
Amortization of prior service cost	$ 7	$ (20)	$ 14	$ (40)
Amortization of actuarial loss	1,166	1,284	2,334	2,569
Amortization of settlement	(123)	0	(123)	0
Total defined benefit pension plans	1,050	1,264	2,225	2,529
Loss activity recognized in other comprehensive loss	2,900		3,200
Other Comprehensive income (loss)	(4,952)	6,541	52,600	(85,447)
Tax (Expense) or Benefit:
Amortization of prior service cost	(2)	10	(5)	20
Amortization of actuarial loss	(445)	(496)	(891)	(1,002)
Amortization of settlement	48	0	48	0
Total defined benefit pension plans	(399)	(486)	(848)	(982)
Loss activity recognized in other comprehensive loss	1,100	(700)	1,200	(600)
Other Comprehensive income (loss)	(1,178)	355	(1,179)	(165)
Net-of-Tax Amount:
Amortization of prior service cost	5	(10)	9	(20)
Amortization of actuarial loss	721	788	1,443	1,567
Amortization of settlement	(75)	0	(75)	0
Total defined benefit pension plans	651	778	1,377	1,547
Loss activity recognized in other comprehensive loss		(1,800)		(1,500)
Foreign currency translation	(8,008)	7,443	49,523	(85,872)
Net current-period other comprehensive income	(6,130)	6,896	51,421	(85,612)
Corn Option [Member]
Before-Tax Amount:
Loss reclassified to net income	(869)	(347)	(2,343)	(581)
Loss activity recognized in other comprehensive loss	2,875	(1,819)	3,195	(1,523)
Total swap derivatives	2,006	(2,166)	852	(2,104)
Tax (Expense) or Benefit:
Loss reclassified to net income	337	134	909	225
Loss activity recognized in other comprehensive loss	(1,116)	707	(1,240)	592
Total swap derivatives	(779)	841	(331)	817
Net-of-Tax Amount:
Loss reclassified to net income	(532)	(213)	(1,434)	(356)
Loss activity recognized in other comprehensive loss	1,759	(1,112)	1,955	(931)
Total swap derivatives	1,227	(1,325)	521	(1,287)
Accumulated Other Comprehensive Income (Loss) [Member]
Before-Tax Amount:
Foreign currency translation	(8,008)	7,443	49,523	(85,872)
Tax (Expense) or Benefit:
Foreign currency translation	0	0	0	0
Net-of-Tax Amount:
Foreign currency translation	$ (8,008)	$ 7,443	$ 49,523	$ (85,872)