Severance, Restructuring and Acquisition Integration Activities - Summary of Severance Activity (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2014	Jun. 30, 2013	Jun. 29, 2014	Jun. 30, 2013
Restructuring Cost and Reserve [Line Items]
New charges	$ 38,208	$ 5,000	$ 39,651	$ 5,800
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
New charges	27,108		28,391
Employee Severance [Member] | Productivity Improvement Program [Member]
Restructuring Cost and Reserve [Line Items]
Balance at December 31, 2013			0
New charges			10,507
Cash payments			(1,774)
Foreign currency translation			(62)
Balance at June 29, 2014	8,671		8,671
Employee Severance [Member] | Grass Valley Integration [Member]
Restructuring Cost and Reserve [Line Items]
Balance at December 31, 2013			0
New charges			16,528
Cash payments			(4,497)
Foreign currency translation			82
Balance at June 29, 2014	$ 12,113		$ 12,113