Share-Based Compensation Share-based Compensation (Details) - USD ($)	12 Months Ended
	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number	575,015	896,687	1,179,770	1,678,468
Common Stock, Capital Shares Reserved for Future Issuance	10,300,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	620,488	1,091,078	1,699,886	2,516,731
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	0	0	208,834
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price	$ 0.00	$ 0.00	$ 11.70
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 0.00	$ 0.00	$ 4.08
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	(106,783)	(236,052)	(649,305)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price	$ 10.69	$ 7.14	$ 6.79
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Weighted Average Grant Date Fair Value	$ 4.18	$ 2.54	$ 2.48
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period	(17,823)	(47,924)	(61,763)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price	$ 11.19	$ 10.96	$ 10.75
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Grant Date Fair Value	$ 4.09	$ 4.12	$ 4.15
Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period	(345,984)	(324,832)	(314,611)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price	$ 11.12	$ 19.86	$ 14.52
Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period, Weighted Average Grant Date Fair Value	4.49	11.39	9.19
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	10.88	10.95	12.13	$ 11.05
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Grant Date Fair Value	$ 4.26	$ 4.32	$ 5.43	5.21
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value	$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value	$ 100,000	$ 1,000,000	$ 3,400,000
Common Stock, Capital Shares Available For Future Issuance	1,509,900
Share-based Compensation	$ 2,787,000	3,109,000	3,207,000
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition	5 months 1 day
Tax Benefit from Stock Options Exercised	$ 0	200,000	807,000
Excess Tax Benefit from Share-based Compensation, Operating Activities	0	217,000	1,240,000
Excess Tax Benefit from Share-based Compensation, Financing Activities	$ 0	$ 217,000	$ 1,240,000
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Exercisable Options, Weighted Average Exercise Price	$ 10.82	$ 10.87	$ 12.63	$ 11.25
Non-Qualified Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation	$ 300,000	$ 800,000	$ 1,500,000
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized	$ 100,000
NQSO grants 2006 - Associates [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	4 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Expiration Period	5 years
NQSO grants 2007 - 2010 Associates [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Expiration Period	5 years
NQSO grants 2011 - 2013 Associates [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Expiration Period	7 years
NQSO grants prior to 2011, Non-employee Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	6 months
Share-based Compensation Arrangement by Share-based Payment Award, Award Expiration Period	5 years
NQSO grants 2011, Non-employee Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	6 months
Share-based Compensation Arrangement by Share-based Payment Award, Award Expiration Period	7 years
NQSO grants 2012 - 2013, Non-employee Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	1 year
Share-based Compensation Arrangement by Share-based Payment Award, Award Expiration Period	7 years