Stock-Based Compensation (Details 1) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jul. 02, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Compensation Cost	$ 6,456
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Compensation Cost	208
Weighted Average Remaining Amortization Periods	1.6
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Compensation Cost	6,248
Weighted Average Remaining Amortization Periods	1.9
Phantom Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Compensation Cost	$ 0
Weighted Average Remaining Amortization Periods	0