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Employee Benefit Plans (Narrative) (Details) (USD $)
In Millions, except Share data, unless otherwise specified
9 Months Ended 3 Months Ended
Sep. 29, 2013
Stock Options [Member]
Sep. 29, 2013
Restricted Stock Units (RSUs) [Member]
Sep. 29, 2013
Employee Stock Purchase Plan [Member]
Sep. 29, 2013
2006 Long Term Incentive Plan [Member]
Jun. 30, 2013
2003 Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Options granted, vesting term (in years)       4 years  
Number of shares reserved for future grant (in shares)     307,500 1,272,871  
Number of Shares expired and retired due to plan termination (in shares)         62,791
Maximum Percentage of compensation contributed by employees (in percentage)     10.00%    
Purchase percentage of stock at fair market value (in percentage)     85.00%    
Total unrecognized compensation $ 19.9 $ 15.5      
Weighted-average period of recognition of stock based compensation (in days) 894 days 1175 days