Summary Of Significant Accounting Policies (Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 28, 2014		Sep. 29, 2013		Sep. 28, 2014		Sep. 29, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cost of revenues - foreign currency revenue forecast contracts	$ (89,630)		$ (104,356)		$ (273,168)		$ (301,662)
Other Operating Income	0		0		0		(578)
Net (loss) earnings from continuing operations	(4,075)		7,232		5,650		3,204
Income taxes expense	14,110		2,665		17,107		3,265
Reclassification Out Of Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net of tax	(593)		(401)		(1,148)		(975)
Reclassification Out Of Accumulated Other Comprehensive Income (Loss) | Amortization of pension plan items
Accumulated Other Comprehensive Income (Loss) [Line Items]
Actuarial loss	(373)	[1]	(390)	[1]	(1,144)	[1]	(1,165)	[1]
Prior service cost	(3)	[1]	(1)	[1]	(9)	[1]	(2)	[1]
Net (loss) earnings from continuing operations	(376)		(391)		(1,153)		(1,167)
Income taxes expense	(217)		122		5		343
Net of tax	(593)		(269)		(1,148)		(824)
Reclassification Out Of Accumulated Other Comprehensive Income (Loss) | Gains on cash flow hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cost of revenues - foreign currency revenue forecast contracts	0		7		0		160
Net (loss) earnings from continuing operations	0		7		0		160
Income taxes expense	0		(139)		0		(139)
Net of tax	0		(132)		0		21
Reclassification Out Of Accumulated Other Comprehensive Income (Loss) | Non-controlling Interests
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Operating Income	0		0		0		172
Net (loss) earnings from continuing operations	0		0		0		(172)
Income taxes expense	0		0		0		0
Net of tax	$ 0		$ 0		$ 0		$ (172)

[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.