Schedule of Reconciliation of Effective Tax Rate (Detail)	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
Income Tax Disclosure [Line Items]
US statutory federal tax rate	21.00%	21.00%
Foreign taxes	(5.70%)	(3.10%)
Tax credits	(1.90%)	(3.00%)
Discrete benefit related to equity compensation	(4.10%)	(4.10%)
Discrete benefit related to release of reserves for uncertain tax positions	0.00%	(27.60%)
Other, net	1.30%	0.70%
Effective tax rate	10.60%	(16.10%)