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Income Taxes - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Apr. 03, 2015	Mar. 28, 2014
Income Tax Contingency [Line Items]
Effective income tax rate	9.70%us-gaap_EffectiveIncomeTaxRateContinuingOperations	24.20%us-gaap_EffectiveIncomeTaxRateContinuingOperations
Federal statutory income tax rate	35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
Unrecognized tax benefits that would impact the provision for income taxes	$ 16.3us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
Interest and possible penalties related to uncertain tax positions	0.6us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued
Potential decrease over the next twelve months for uncertain tax positions due to expiration of applicable statute of limitations	$ 1.0us-gaap_SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleEstimatedRangeOfChangeUpperBound
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.
Pro Forma [Member]
Income Tax Contingency [Line Items]
Federal statutory income tax rate	65.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate / us-gaap_StatementScenarioAxis = us-gaap_ProFormaMember

X

- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 12

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-Number 210

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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A description of the factual circumstances giving rise to an income tax exemption or special reduction received from a taxing jurisdiction.

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Amount of (increase) decrease reasonably possible in the estimated upper bound of the unrecognized tax benefit for a tax position taken or expected to be taken.

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Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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