v2.4.0.8
Income Taxes (Additional Information) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 28, 2014
Jun. 29, 2013
Jun. 28, 2014
Jun. 29, 2013
Income Taxes [Line Items]        
Increase (Decrease) in income tax expense $ 7,357   $ 23,325  
Income tax provision 26,737 34,094 50,387 27,062
Effective tax rate 12.80% 16.50% 14.30% 9.40%
Income Tax Reconciliation, Tax Credits, Research       6,301
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations $ 5,190 $ 9,957 $ 10,985 $ 26,493