Income Taxes - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended			9 Months Ended
	Sep. 26, 2014	Jun. 27, 2014	Sep. 27, 2013	Sep. 26, 2014	Sep. 27, 2013
Income Tax Contingency [Line Items]
Federal statutory income tax rate				35.00%	35.00%
Valuation Allowance, Deferred Tax Asset, Change in Amount	$ 4.2	$ 24.5		$ 28.7
Net tax benefit associated with release of tax reserves for uncertain tax positions				8.5	38.4
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations	8.5		38.4
Unrecognized tax benefits that would impact the provision for income taxes	16.8			16.8
Interest and possible penalties related to uncertain tax positions	0.3			0.3
Potential decrease over the next twelve months for uncertain tax positions due to expiration of applicable statute of limitations	$ 0.6			$ 0.6
SWITZERLAND
Income Tax Contingency [Line Items]
Income Tax Holiday, Description				The Company's operations in Switzerland are subject to a reduced tax rate under the Switzerland tax holiday which requires various thresholds of investment and employment in Switzerland. The Company has met these various thresholds and the Switzerland tax holiday is effective through the end of 2018.