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Severance, Restructuring and Acquisition Integration Activities - Severance, Restructuring and Integration Costs by Segment (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 28, 2014	Jun. 29, 2014	Mar. 30, 2014	Dec. 31, 2013	Sep. 29, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Restructuring Cost and Reserve [Line Items]
Total Costs	$ 22,000us-gaap_RestructuringCharges	$ 9,200us-gaap_RestructuringCharges	$ 38,200us-gaap_RestructuringCharges	$ 1,400us-gaap_RestructuringCharges	$ 5,400us-gaap_RestructuringCharges	$ 5,900us-gaap_RestructuringCharges	$ 7,700us-gaap_RestructuringCharges	$ 800us-gaap_RestructuringCharges	$ 70,827us-gaap_RestructuringCharges	$ 14,900us-gaap_RestructuringCharges
Broadcast Solutions [Member]
Restructuring Cost and Reserve [Line Items]
Total Costs									48,557		4,900
Enterprise Connectivity Solutions [Member]
Restructuring Cost and Reserve [Line Items]
Total Costs									3,318		3,200
Industrial Connectivity Solutions [Member]
Restructuring Cost and Reserve [Line Items]
Total Costs									11,953		9,200
Industrial IT Segment [Member]
Restructuring Cost and Reserve [Line Items]
Total Costs									6,999
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Severance									37,254
Employee Severance [Member] \| Broadcast Solutions [Member]
Restructuring Cost and Reserve [Line Items]
Severance									20,025
Employee Severance [Member] \| Enterprise Connectivity Solutions [Member]
Restructuring Cost and Reserve [Line Items]
Severance									2,183
Employee Severance [Member] \| Industrial Connectivity Solutions [Member]
Restructuring Cost and Reserve [Line Items]
Severance									9,732
Employee Severance [Member] \| Industrial IT Segment [Member]
Restructuring Cost and Reserve [Line Items]
Severance									5,314
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Other Restructuring Costs									33,573
Other Restructuring [Member] \| Broadcast Solutions [Member]
Restructuring Cost and Reserve [Line Items]
Other Restructuring Costs									28,532
Other Restructuring [Member] \| Enterprise Connectivity Solutions [Member]
Restructuring Cost and Reserve [Line Items]
Other Restructuring Costs									1,135
Other Restructuring [Member] \| Industrial Connectivity Solutions [Member]
Restructuring Cost and Reserve [Line Items]
Other Restructuring Costs									2,221
Other Restructuring [Member] \| Industrial IT Segment [Member]
Restructuring Cost and Reserve [Line Items]
Other Restructuring Costs									$ 1,685