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Fair Value Fair Value (Details Textual)
$ in Millions
6 Months Ended
Jun. 27, 2020
USD ($)
2020 Acquisitions [Member]  
Fair Value Measurement Inputs and Valuation Techniques [Line Items]  
Finite-lived intangible assets acquired during period $ 101.3
Fair Value, Inputs, Level 3 [Member]  
Fair Value Measurement Inputs and Valuation Techniques [Line Items]  
Deferred revenue assumed in acquisitions during period $ 6.9
Fair Value, Inputs, Level 3 [Member] | ExpectedProfitMargin [Member]  
Fair Value Measurement Inputs and Valuation Techniques [Line Items]  
Valuation significant input, assumed profit margin 25.00%
Deferred revenue [Member] | Fair Value, Inputs, Level 3 [Member] | Measurement Input, Discount Rate [Member]  
Fair Value Measurement Inputs and Valuation Techniques [Line Items]  
Valuation significant input, discount rate 4.75%
Acquired Intangible Assets [Member] | Fair Value, Inputs, Level 3 [Member] | Measurement Input, Discount Rate [Member] | Minimum [Member]  
Fair Value Measurement Inputs and Valuation Techniques [Line Items]  
Valuation significant input, discount rate 9.00%
Acquired Intangible Assets [Member] | Fair Value, Inputs, Level 3 [Member] | Measurement Input, Discount Rate [Member] | Maximum [Member]  
Fair Value Measurement Inputs and Valuation Techniques [Line Items]  
Valuation significant input, discount rate 12.50%
Acquired Intangible Assets [Member] | Fair Value, Inputs, Level 3 [Member] | Measurement Input, Discount Rate [Member] | Weighted Average [Member]  
Fair Value Measurement Inputs and Valuation Techniques [Line Items]  
Valuation significant input, discount rate 10.30%