Severance, Restructuring, and Acquisition Integration Activities (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 29, 2019	Sep. 30, 2018	Sep. 29, 2019	Sep. 30, 2018
Restructuring Cost and Reserve [Line Items]
Severance, restructuring, and acquisition integration costs	$ 4,045	$ 11,688	$ 10,904	$ 57,010
Cost of sales
Restructuring Cost and Reserve [Line Items]
Severance, restructuring, and acquisition integration costs	792	4,820	1,777	21,482
Selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Severance, restructuring, and acquisition integration costs	3,253	6,341	8,364	30,287
Research and development expenses
Restructuring Cost and Reserve [Line Items]
Severance, restructuring, and acquisition integration costs	$ 0	$ 527	$ 763	$ 5,241