Income Taxes Income Taxes - Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Computed expected tax expense	$ 42,888	$ 34,573	$ 28,508
Change in valuation allowance	1,039	4,421	5,420
Deferred tax on unremitted foreign earnings	2,546	4,848	1,956
Sub-Part F income	6,159	4,923	3,786
Foreign rate differential	(9,982)	(5,653)	(9,754)
Biofuel tax incentives	(28,435)	(28,143)	(22,546)
Non-deductible transaction costs	0	0	4,107
Other, net	1,100	(1,468)	1,664
Income Tax Expense (Benefit)	$ 15,315	$ 13,501	$ 13,141