Income Taxes (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019	Dec. 31, 2019
Income Tax Contingency [Line Items]
Income tax expense at U.S. federal statutory corporate tax rate	21.00%	21.00%
Decrease in effective tax rate	6.00%	9.00%
Decrease in effective tax rate for difference between deduction for tax purposes and compensation cost recognized from stock option exercises	7.00%	8.00%
Increase in reserves for income taxes, net of deferred tax benefit	$ 306
Interest and penalties included in reserve	155
Liability for uncertain tax positions	12,919
Reserve for income taxes classified as a noncurrent iability	11,891		$ 11,563
Reserve for income taxes classified an noncurrent deferred tax assets	1,028
Interest and penalties, gross	1,109
Minimum decrease in income tax expense due to release in reserves	1,300
Maximum decrease in income tax expense due to release in reserves	$ 1,400
Tax years open to examination by Internal Revenue Service	2016 through 2019
Tax years open to examination by various taxing authorities for other entities	2015 through 2019
Foreign Tax Authority | Revenue Commissioners, Ireland
Income Tax Contingency [Line Items]
Income tax expense at U.S. federal statutory corporate tax rate	12.50%
Foreign Tax Authority | State Administration of Taxation, China
Income Tax Contingency [Line Items]
Income tax expense at U.S. federal statutory corporate tax rate	25.00%
Domestic Tax Authority
Income Tax Contingency [Line Items]
Income tax expense at U.S. federal statutory corporate tax rate	21.00%