Employee Benefit Plans (Narrative) (Details) (USD $) In Millions, except Share data, unless otherwise specified	9 Months Ended
	Sep. 28, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted, vesting term (in years)	4 years
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation	$ 13.2
Weighted-average period of recognition of stock based compensation (in days)	872 days
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation	$ 18.9
Weighted-average period of recognition of stock based compensation (in days)	1029 days
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares reserved for future grant (in shares)	210,000
Maximum Percentage of compensation contributed by employees (in percentage)	10.00%
Purchase percentage of stock at fair market value (in percentage)	85.00%
2006 Long Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares reserved for future grant (in shares)	2,025,976