Business Segment Information for Continuing Operations (Detail) - USD ($) $ in Thousands	2 Months Ended	3 Months Ended											11 Months Ended		12 Months Ended
	Oct. 02, 2015	Sep. 30, 2016	Jul. 01, 2016	Apr. 01, 2016	Jan. 01, 2016	Sep. 25, 2015	Jul. 31, 2015	Jun. 26, 2015	May 01, 2015	Mar. 27, 2015	Jan. 30, 2015	Dec. 26, 2014	Oct. 02, 2015		Sep. 30, 2016		Oct. 02, 2015		Oct. 31, 2014
Segment Reporting Information [Line Items]
Sales	$ 349,627	$ 543,752	$ 517,092	$ 490,310	$ 441,477	$ 545,249	$ 490,022	$ 484,723	$ 494,042	$ 468,210	$ 440,758	$ 504,611	$ 1,774,449	[1]	$ 1,992,631	[1]	$ 2,002,793	[2]	$ 2,029,471	[1]
Other income													12,503		0		12,503	[2]	0
Interest income													578		367		632	[2]	555
Interest expense													(30,090)		(30,091)		(33,114)	[2]	(33,010)
Loss on extinguishment of debt													(11,451)		0		(11,451)	[2]	(533)
Earnings from Continuing Operations Before Income Taxes													116,022		140,435		155,233	[2]	209,298
Avionics & Controls
Segment Reporting Information [Line Items]
Sales													727,801		860,494		826,044		766,838
Sensors & Systems
Segment Reporting Information [Line Items]
Sales													633,446		696,032		714,965		771,369
Advanced Materials
Segment Reporting Information [Line Items]
Sales													413,202		436,105		461,784		491,264
Operating Segments
Segment Reporting Information [Line Items]
Segment Earnings													218,648		240,639		268,794		310,583
Operating Segments | Avionics & Controls
Segment Reporting Information [Line Items]
Segment Earnings													65,910		78,356		93,225		119,649
Operating Segments | Sensors & Systems
Segment Reporting Information [Line Items]
Segment Earnings													71,787		87,768		84,235		86,101
Operating Segments | Advanced Materials
Segment Reporting Information [Line Items]
Segment Earnings													80,951		74,515		91,334		104,833
Corporate Non Segment
Segment Reporting Information [Line Items]
Corporate expense													$ (74,166)		$ (70,480)		$ (82,131)		$ (68,297)

[1] Based on country from which the sale originated and the sale was recorded.

[2] (Recast)