Long-Term Debt (Details) - USD ($) $ in Thousands	Jan. 06, 2016	Jan. 02, 2016	Jan. 03, 2015
Long-term Debt, Current and Noncurrent [Abstract]
Long-term debt		$ 190,477	$ 197,791
Less: current portion		(5,477)	(55)
Long-term debt		185,000	197,736
Long-term Debt, by Maturity [Abstract]
2016		5,477
2017		35,000
2018		0
2019		0
2020		0
Thereafter		150,000
Variable rate long-term debt		40,000	48,000
Long-term debt, fair value		148,000	154,000
Notes Payable to Banks [Member]
Long-term Debt, Current and Noncurrent [Abstract]
Long-term debt		$ 40,300	$ 47,700
Long-term Debt, by Maturity [Abstract]
Notes payable effective interest rate		1.50%	1.80%
Senior Notes Due In 2016 [Member]
Long-term Debt, Current and Noncurrent [Abstract]
Long-term debt		$ 150,000	$ 150,000
Long-term Debt, by Maturity [Abstract]
Senior notes state interest rate		5.54%	5.54%
Other Notes and Amounts [Member]
Long-term Debt, Current and Noncurrent [Abstract]
Long-term debt		$ 177	$ 91
Subsequent Event [Member] | Revolving Credit Facility [Member]
Long-term Debt, by Maturity [Abstract]
Accordion feature	$ 150,000
Line of Credit Facility, Maximum Borrowing Capacity	$ 400,000