Fair Value Measurements (Details) - USD ($) $ in Thousands	Jan. 01, 2016	Jan. 02, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred compensation investments	$ 9,855	$ 11,144
Total assets measured at fair value	9,855	11,144
Fair value transfers of assets from level 1 to level 2	0	0
Fair value transfers of assets from level 2 to level 1	0	0
Fair value transfers of liabilities from level 1 to level 2	0	0
Fair value transfers of liabilities from level 2 to level 1	0	0
Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred compensation investments	400	353
Total assets measured at fair value	400	353
Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred compensation investments	9,455	10,791
Total assets measured at fair value	9,455	10,791
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	$ 0	$ 0