Goodwill And Intangible Assets (Changes In Carrying Amount Of Goodwill By Operating Segment) (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jul. 04, 2014
Goodwill And Intangible Assets [Line Items]
Balance as of fiscal year end 2013	$ 1,989,470
Additions due to acquisitions	10,852
Purchase price adjustments	826
Foreign currency translation adjustments	(2,676)
Write off	(689)
Balance as of the second quarter of fiscal 2014	1,997,783
Engineering And Construction [Member]
Goodwill And Intangible Assets [Line Items]
Balance as of fiscal year end 2013	1,080,240
Additions due to acquisitions	6,385
Purchase price adjustments	737
Foreign currency translation adjustments	(2,690)
Write off	0
Balance as of the second quarter of fiscal 2014	1,084,672
Field Solutions [Member]
Goodwill And Intangible Assets [Line Items]
Balance as of fiscal year end 2013	88,651
Additions due to acquisitions	45
Purchase price adjustments	46
Foreign currency translation adjustments	(266)
Write off	0
Balance as of the second quarter of fiscal 2014	88,476
Mobile Solutions [Member]
Goodwill And Intangible Assets [Line Items]
Balance as of fiscal year end 2013	796,094
Additions due to acquisitions	4,422
Purchase price adjustments	43
Foreign currency translation adjustments	298
Write off	(689)
Balance as of the second quarter of fiscal 2014	800,168
Advanced Devices [Member]
Goodwill And Intangible Assets [Line Items]
Balance as of fiscal year end 2013	24,485
Additions due to acquisitions	0
Purchase price adjustments	0
Foreign currency translation adjustments	(18)
Write off	0
Balance as of the second quarter of fiscal 2014	$ 24,467