Transactions with Related Parties Related Party Transaction Summary (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2017 USD ($)	Jan. 01, 2017 USD ($)	Jan. 03, 2016 USD ($)	Jan. 01, 2011 USD ($) ft²
QSCC
Related Party Transaction
Area of Real Estate Property | ft²				14,333
Annual Base Rental	$ 215			$ 176
QSCC | Patronage Dividends | Cost of Sales
Related Party Transaction
Related Party Transaction, Other Revenues from Transactions with Related Party	987	$ 890	$ 1,265
QSCC | Lease Income | General and Administrative Expense
Related Party Transaction
Related Party Transaction, Other Revenues from Transactions with Related Party	217	193	185
TimWen
Related Party Transaction
TimWen lease expense	12,360	11,602	11,843
TimWen | Cost of Sales
Related Party Transaction
TimWen lease expense	12,572	11,806	12,059
TimWen | General and Administrative Expense
Related Party Transaction
Related Party Transaction, Other Revenues from Transactions with Related Party	$ 212	$ 204	$ 216