Stockholders' Equity (Schedule of Reclassifications Out Of Accumulated Other Comprehensive Income) (Details) - Derivatives Designated As Hedging Instruments [Member] - Foreign Currency Forward Contracts [Member] - USD ($) $ in Thousands		3 Months Ended			6 Months Ended
		Jul. 03, 2016	Jun. 28, 2015		Jul. 03, 2016	Jun. 28, 2015
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]
Gain or (Loss) Reclassified from OCI into Income-Effective Portion		$ (275)	$ (600)		$ (431)	$ (771)
Derivative Instruments, Loss Reclassified from Accumulated OCI into Income, Effective Portion	[1]	(423)	(600)		(663)	(771)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax		148	0	[2]	232	0	[2]
Net Revenue [Member]
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]
Derivative Instruments, Loss Reclassified from Accumulated OCI into Income, Effective Portion	[1]	(407)	(775)		(719)	(922)
Cost Of Revenue [Member]
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]
Derivative Instruments, Loss Reclassified from Accumulated OCI into Income, Effective Portion	[1]	(2)
Derivative Instruments, Gain Reclassified from Accumulated OCI into Income, Effective Portion	[1]		5		0	4
Operating Expenses [Member]
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]
Derivative Instruments, Loss Reclassified from Accumulated OCI into Income, Effective Portion	[1]	$ (14)
Derivative Instruments, Gain Reclassified from Accumulated OCI into Income, Effective Portion	[1]		$ 170		$ 56	$ 147

[1] Refer to Note 8, Stockholders' Equity, which summarizes the accumulated other comprehensive income activity related to derivatives.

[2] Under the Company's 2015 tax structure, all hedging gains and losses from derivative contracts were ultimately borne by a legal entity in a jurisdiction with no income tax.