Restructuring, Integration, and Other Charges (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 28, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring, integration, and other charges		$ 13,288	$ 89,785	$ 60,361
Other Charges		532	66,893	29,146
Restructuring Charges From Current Period [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, integration, and other charges		13,389	22,256	23,698
Restructuring Charges From Prior Periods [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, integration, and other charges		$ (633)	636	7,517
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Acquisition-related Charges				10,236
Relocation and other centralization charges			8,959	$ 11,188
Severance Costs [Member] | Expense Reduction Program [Member]
Restructuring Cost and Reserve [Line Items]
Other Charges	$ 30,906
Employee Severance [Member] | Expense Reduction Program [Member]
Restructuring Cost and Reserve [Line Items]
Other Charges			$ 45,951