Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jan. 02, 2016	Jan. 03, 2015
Statement of Financial Position [Abstract]
Accounts receivable, allowance	$ 917	$ 1,778
Common stock, par value	$ 0.833	$ 0.833
Common stock, shares authorized	110,000,000	110,000,000
Common stock, shares outstanding	70,968,054	70,406,086
Preferred stock, par value	$ 1	$ 1
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares outstanding	0	0