Severance, Restructuring, and Acquisition Integration Activities Severance, Restructuring, and Acquisition Integration Activities - Additional Information (Details)	3 Months Ended									6 Months Ended	12 Months Ended			24 Months Ended	27 Months Ended	30 Months Ended
	Dec. 31, 2017 USD ($)	Oct. 01, 2017 USD ($)	Jul. 02, 2017 USD ($)	Apr. 02, 2017 USD ($)	Dec. 31, 2016 USD ($)	Oct. 02, 2016 USD ($)	Jul. 03, 2016 USD ($)	Apr. 03, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($) Program	Dec. 31, 2017 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2018 USD ($)
Segment Reporting Information [Line Items]
Severance, restructuring, and acquisition integration costs	$ 9,900,000	$ 16,700,000	$ 9,600,000	$ 6,600,000	$ 11,700,000	$ 12,800,000	$ 5,900,000	$ 8,400,000			$ 42,790,000	$ 38,770,000	$ 47,170,000
Cost of Sales [Member]
Segment Reporting Information [Line Items]
Severance, restructuring, and acquisition integration costs											32,600,000	12,300,000	9,400,000
Selling, General and Administrative Expenses [Member]
Segment Reporting Information [Line Items]
Severance, restructuring, and acquisition integration costs											10,000,000	25,700,000	31,700,000
Research and Development Expense [Member]
Segment Reporting Information [Line Items]
Severance, restructuring, and acquisition integration costs											$ 200,000	800,000	6,100,000
Maximum [Member]
Segment Reporting Information [Line Items]
Restructuring and integration cost payable period											60 days
Industrial Manufacturing Footprint Program [Member]
Segment Reporting Information [Line Items]
Severance, restructuring, and acquisition integration costs											$ 30,600,000	17,800,000		$ 48,400,000		$ 34,100,000
Expected savings from restructuring										$ 13,000,000
Industrial Manufacturing Footprint Program [Member] \| Scenario, Forecast [Member]
Segment Reporting Information [Line Items]
Expected restructuring cost remaining																	$ 6,000,000
Industrial Restructuring Program [Member]
Segment Reporting Information [Line Items]
Severance, restructuring, and acquisition integration costs												9,700,000	3,300,000		$ 13,000,000
Expected savings from restructuring								$ 18,000,000
Grass Valley Restructuring Program [Member]
Segment Reporting Information [Line Items]
Severance, restructuring, and acquisition integration costs											0	8,700,000	25,400,000
Expected savings from restructuring									$ 30,000,000
Productivity Improvement Program and Acquisition Integration [Member]
Segment Reporting Information [Line Items]
Severance, restructuring, and acquisition integration costs													$ 18,500,000
Number of restructuring programs \| Program													2
Reduction in operating expenses											$ 18,000,000
Productivity Improvement Program and Acquisition Integration [Member] \| M2 FX Limited [Member]
Segment Reporting Information [Line Items]
Severance, restructuring, and acquisition integration costs												$ 2,600,000