Income Taxes Income Taxes - Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Computed expected tax expense	$ 24,775	$ 22,470	$ 42,888
Change in valuation allowance	9,700	1,609	1,039
Deferred tax on unremitted foreign earnings	(31)	641	2,546
Sub-Part F income	3,361	6,284	6,159
Foreign rate differential	658	(8,292)	(9,982)
Change in uncertain tax positions	3,419	(1,080)	0
Biofuel tax incentives	(18,489)	0	(28,435)
Deferred tax effects	(1,654)	26,243	0
Deferred tax effects	(8,363)	(115,169)	2,169
Other, net	(1,345)	(1,860)	(1,069)
Income Tax Expense (Benefit)	$ 12,031	$ (69,154)	$ 15,315