Severance, Restructuring and Acquisition Integration Activities - Additional Information (Detail) $ in Thousands	3 Months Ended								6 Months Ended	12 Months Ended
	Dec. 31, 2016 USD ($)	Oct. 02, 2016 USD ($)	Jul. 03, 2016 USD ($)	Apr. 03, 2016 USD ($)	Dec. 31, 2015 USD ($)	Sep. 27, 2015 USD ($)	Jun. 28, 2015 USD ($)	Mar. 29, 2015 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($) Program	Dec. 31, 2014 USD ($)
Restructuring Cost and Reserve [Line Items]
Severance, restructuring, and acquisition integration costs	$ 11,700	$ 12,800	$ 5,900	$ 8,400	$ 13,600	$ 14,100	$ 4,900	$ 14,600		$ 38,770	$ 47,170	$ 70,827
Cost of Sales [Member]
Restructuring Cost and Reserve [Line Items]
Severance, restructuring, and acquisition integration costs										12,300	9,400	20,700
Selling, General and Administrative Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Severance, restructuring, and acquisition integration costs										25,700	31,700	46,500
Research and Development [Member]
Restructuring Cost and Reserve [Line Items]
Severance, restructuring, and acquisition integration costs										800	6,100	$ 3,600
Industrial Restructuring Program [Member]
Restructuring Cost and Reserve [Line Items]
Severance, restructuring, and acquisition integration costs										9,700	3,300
Expected savings from the restructuring program				$ 18,000
Industrial Manufacturing Footprint Program [Member]
Restructuring Cost and Reserve [Line Items]
Severance, restructuring, and acquisition integration costs										17,800
Grass Valley Restructuring Program [Member]
Restructuring Cost and Reserve [Line Items]
Severance, restructuring, and acquisition integration costs										8,700	25,400
Expected savings from the restructuring program					$ 30,000
Productivity Improvement Program and Acquisition Integration [Member]
Restructuring Cost and Reserve [Line Items]
Severance, restructuring, and acquisition integration costs											$ 18,500
Reduction in operating expenses										18,000
Number of significant programs | Program											2
Scenario, Forecast [Member] | Industrial Manufacturing Footprint Program [Member]
Restructuring Cost and Reserve [Line Items]
Expected savings from the restructuring program									$ 10,000
Additional severance and other restructuring costs									$ 15,000
M2 FX Limited [Member] | Productivity Improvement Program and Acquisition Integration [Member]
Restructuring Cost and Reserve [Line Items]
Severance, restructuring, and acquisition integration costs										$ 2,600
Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and integration cost payable period										60 days