Taxes (Tables)

9 Months Ended

Sep. 29, 2019

Income Tax Disclosure [Abstract]

Reconciliation of United States Federal Statutory Corporate Tax Rate to Company's Effective Tax Rate, or Income Tax Provision

A reconciliation of the United States federal statutory corporate tax rate to the Company’s income tax expense, or effective tax rate, was as follows:

	Three-months Ended				Nine-months Ended
	September 29, 2019		September 30, 2018		September 29, 2019		September 30, 2018
Income tax expense at U.S. federal statutory corporate tax rate	21	%	21	%	21	%	21	%
State income taxes, net of federal benefit	1	%	1	%	1	%	1	%
Foreign tax rate differential	(7	)%	(7	)%	(7	)%	(7	)%
Tax credit	(1	)%	—	%	(1	)%	—	%
Discrete tax benefit related to Tax Act 2017	—	%	(9	)%	—	%	(4	)%
Discrete tax benefit related to stock options	(1	)%	(4	)%	(3	)%	(5	)%
Other discrete tax events	(3	)%	(2	)%	(1	)%	(1	)%
Other	2	%	1	%	2	%	1	%
Income tax expense	12	%	1	%	12	%	6	%