Summary Of Significant Accounting Policies (Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 29, 2014		Jun. 30, 2013		Jun. 29, 2014		Jun. 30, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cost of revenues - foreign currency revenue forecast contracts	$ (98,418)		$ (102,399)		$ (183,538)		$ (197,306)
Other Operating Income	0		(248)		0		(578)
Net earnings (loss) from continuing operations	9,854		897		9,725		(4,028)
Income taxes expense	1,777		600		2,997		600
Reclassification Out Of Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net of tax	(277)		(397)		(555)		(522)
Reclassification Out Of Accumulated Other Comprehensive Income (Loss) [Member] | Amortization of Pension Plan Items [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Actuarial loss	(386)	[1]	(386)	[1]	(771)	[1]	(775)	[1]
Prior service cost	(3)	[1]	0	[1]	(6)	[1]	(1)	[1]
Net earnings (loss) from continuing operations	(389)		(386)		(777)		(776)
Income taxes expense	112		113		222		221
Net of tax	(277)		(273)		(555)		(555)
Reclassification Out Of Accumulated Other Comprehensive Income (Loss) [Member] | Gains and Losses on Cash flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cost of revenues - foreign currency revenue forecast contracts	0		(4)		0		153
Net earnings (loss) from continuing operations	0		(4)		0		153
Income taxes expense	0				0
Net of tax	0		(4)		0		153
Reclassification Out Of Accumulated Other Comprehensive Income (Loss) [Member] | Non-controlling Interests
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Operating Income	0		120		0		120
Net earnings (loss) from continuing operations	0		(120)		0		(120)
Income taxes expense	0		0		0		0
Net of tax	$ 0		$ (120)		$ 0		$ (120)

[1] These accumulated other comprehensive income components are included in the computation of net periodic pension costs. Refer to Note 9 of the Consolidated Financial Statements.