Allocation of Estimated Fair Value of Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Oct. 02, 2015	Jan. 31, 2015	Oct. 31, 2014
Business Acquisition [Line Items]
Goodwill	$ 1,024,667	$ 1,041,991		$ 1,071,786
Belgium-based | Barco N V
Business Acquisition [Line Items]
Current assets			$ 82,319
Property, plant and equipment			6,206
Goodwill			46,618
Other assets			3,401
Total assets acquired			195,902
Current liabilities assumed			34,006
Long-term liabilities assumed			5,921
Net assets acquired			155,975
Belgium-based | Programs | Barco N V
Business Acquisition [Line Items]
Intangible assets subject to amortization			56,455
Belgium-based | Programs Two | Barco N V
Business Acquisition [Line Items]
Intangible assets subject to amortization			677
Belgium-based | Trade Name | Barco N V
Business Acquisition [Line Items]
Intangible assets subject to amortization			$ 226