Commitments and Contingencies Commitment and Contingencies Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Capital Leases, Future Minimum Payments Due, Next Twelve Months	$ 4,590
Capital Leases, Future Minimum Payments Due in Two Years	4,205
Capital Leases, Future Minimum Payments Due in Three Years	3,333
Capital Leases, Future Minimum Payments Due in Four Years	989
Capital Leases, Future Minimum Payments Due in Five Years	244
Capital Leases, Future Minimum Payments Due Thereafter	0
Capital Leases, Future Minimum Payments Due	13,361
Capital Leases, Future Minimum Payments, Interest Included in Payments	(1,265)
Capital Lease Obligations	12,096	$ 14,530
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Operating Leases, Future Minimum Payments Due, Next Twelve Months	3,002
Operating Leases, Future Minimum Payments, Due in Two Years	2,533
Operating Leases, Future Minimum Payments, Due in Three Years	2,121
Operating Leases, Future Minimum Payments, Due in Four Years	1,667
Operating Leases, Future Minimum Payments, Due in Five Years	882
Operating Leases, Future Minimum Payments, Due Thereafter	3,155
Operating Leases, Future Minimum Payments Due	13,360
Operating Leases, Rent Expense, Net [Abstract]
Operating Leases, Rent Expense	4,453	3,687	$ 3,575
Leases, Capital [Abstract]
Capital Leased Assets, Gross	22,400	25,250
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation	$ 7,866	$ 8,300