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Employee Benefit Plans (Schedule of Valuation and Expense Information) (Details)
3 Months Ended 9 Months Ended
Sep. 29, 2019
Sep. 30, 2018
Sep. 29, 2019
Sep. 30, 2018
Stock Options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Expected life (in years) 6 years 2 months 12 days 4 years 4 months 24 days 6 years 2 months 12 days 4 years 4 months 24 days
Risk-free interest rate 1.85% 2.79% 1.85% 2.36%
Expected volatility 33.90% 33.50% 33.90% 31.10%
Dividend yield 0.00% 0.00% 0.00%  
ESPP        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Expected life (in years) 6 months 6 months 6 months 6 months
Risk-free interest rate 1.83% 2.22% 2.06% 2.00%
Expected volatility 44.50% 38.80% 43.90% 37.90%
Dividend yield 0.00% 0.00% 0.00% 0.00%