Income Taxes - Additional Information (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 28, 2014	Sep. 29, 2013	Sep. 28, 2014	Sep. 29, 2013	Dec. 31, 2013
Income Taxes [Line Items]
Effective tax rate	18.00%	21.00%	16.00%	14.00%
U.S. statutory federal tax rate			35.00%
Uncertain tax positions	$ 31.6		$ 31.6		$ 21.2
Net increase in uncertain tax positions			10.4
Decrease in uncertain tax position resulting from expiration of statutes of limitations			2.8
Tax savings due to the tax holiday			$ 12.3
Tax savings due to the tax holiday, per share			$ 0.05
Tax holiday expiration date			December 31, 2015