Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended	3 Months Ended
Sep. 27, 2014	Sep. 28, 2013 Change due to enactment of American Taxpayer Relief Act [Member]	Sep. 28, 2013 Change in Israel Tax Rate [Member]
Income Taxes [Abstract]
Decrease in liabilities for unrecognized tax benefits	$ 1,432
Effect on Income Tax Expense (Benefit) [Line Items]
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability		$ 1,330	$ 2,867

Amount of income tax expense (benefit) from continuing operations attributable to an adjustment of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 9

-Subparagraph (g)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319

Name:	us-gaap_IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration