Income Taxes Income Tax Expense (benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016
Income Tax Disclosure [Abstract]
Document Fiscal Year Focus	2017
Current:
Federal	$ 19,153	$ 21,634	$ 7,272
State	4,046	5,289	3,870
Current Income Tax Expense	23,199	26,923	11,142
Deferred:
Federal	2,734	(105)	13,567
State	28	(2,302)	202
Deferred Income Tax Expense	2,762	(2,407)	13,769
Income Tax Expense	$ 25,961	$ 24,516	$ 24,911