Accounts Payable and Accrued Liabilities - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended						12 Months Ended
	Dec. 31, 2013	Sep. 29, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2013	Dec. 31, 2013 Cost of sales [Member]	Dec. 31, 2012 Cost of sales [Member]	Dec. 31, 2013 Selling, general and administrative expenses [Member]	Dec. 31, 2012 Selling, general and administrative expenses [Member]	Dec. 31, 2013 Research and development [Member]	Dec. 31, 2012 Research and development [Member]	Dec. 31, 2012 Contract termination costs [Member]	Dec. 31, 2013 Broadcast Solutions [Member]	Dec. 31, 2012 Broadcast Solutions [Member]	Dec. 31, 2013 Industrial IT Solutions [Member]	Dec. 31, 2012 Industrial IT Solutions [Member]	Dec. 31, 2012 Enterprise Connectivity Solutions [Member]	Dec. 31, 2012 Industrial Connectivity Solutions [Member]
Change In Accounting Principle [Line Items]
Accounts payable due to bank	$ 16.1				$ 21.3		$ 16.1
Settlement of accounts payable outstanding							1 year
Severance and other restructuring cost	5.4	5.9	7.7	0.8	0.5	17.4	14.9	7.1	6.5	6.5	10.0	1.3	1.4	5.2	12.1	4.9		0.5	3.2	9.2
Severance expense																	1.7
Accrued severance	$ 1.0						$ 1.0