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Income Taxes Income Taxes - Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Computed expected tax expense	$ 22,470	$ 42,888	$ 34,573
Change in valuation allowance	1,609	1,039	4,421
Deferred tax on unremitted foreign earnings	641	2,546	4,848
Sub-Part F income	6,284	6,159	4,923
Foreign rate differential	(8,292)	(9,982)	(5,653)
Biofuel tax incentives	0	(28,435)	(28,143)
Deferred tax effects	26,243	0	0
Deferred tax effects	(115,169)	2,169	0
Other, net	(2,940)	(1,069)	(1,468)
Income Tax Expense (Benefit)	$ (69,154)	$ 15,315	$ 13,501

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