Income Taxes - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Oct. 02, 2016	Oct. 04, 2015	Oct. 02, 2016	Oct. 04, 2015	Dec. 31, 2015
Income Taxes [Line Items]
Effective tax rate	(6.90%)	18.30%	3.70%	20.90%
U.S. statutory federal tax rate	35.00%	35.00%	35.00%	35.00%
Discrete tax benefits	$ 6.4	$ 3.3	$ 13.3	$ 5.0
Out-of-period adjustments	3.1		3.1
Discrete tax benefits related to tax credit carryforwards	1.6		1.6
Gains on non-taxable foreign exchange	0.7		4.1
Other discrete tax benefits	1.0	0.9	1.0	1.0
Tax reserve releases resulting from the settlement of a U.S. tax audit			2.6
Marketable securities			0.9
Discrete tax benefit attributable to a United States tax court opinion regarding intercompany cost sharing arrangements		1.8		1.8
Decrease in uncertain tax position resulting from expiration of statutes of limitations		$ 0.6	4.4	1.3
Discrete tax benefit related to disqualifying dispositions of incentive stock options and employee stock purchase plan shares				0.9
Uncertain tax positions	34.7		34.7		$ 33.7
Net Increase in uncertain tax positions			1.0
Accrued interest and penalties	$ 0.8		0.8		$ 0.5
Interest and penalties related to income tax			0.3	0.3
Tax savings due to the tax holiday			$ 25.2	$ 9.9
Tax savings due to the tax holiday, per share			$ 0.12	$ 0.05
Tax holiday expiration date			December 31, 2020