Discontinued Operations Assets and Liabilities Held for Sale (Detail) - USD ($) $ in Thousands	Jan. 01, 2016	Oct. 02, 2015
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Accounts receivable, net	$ 6,086	$ 6,906
Inventories	19,354	20,604
Prepaid expenses	281	341
Current Assets of Businesses Held for Sale	25,721	27,851
Net property, plant and equipment	16,031	17,673
Intangibles, net	4,268	5,873
Deferred income tax benefits	630	(147)
Other assets	1,474	1,518
Non-Current Assets of Businesses Held for Sale	22,403	24,917
Accounts payable	5,722	6,715
Accrued liabilities	12,325	10,391
Current Liabilities of Businesses Held for Sale	18,047	17,106
Deferred income tax liabilities		194
Other liabilities	642	2,215
Non-Current Liabilities of Businesses Held for Sale	642	2,409
Net Assets of Businesses Held for Sale	29,435	33,253
Avionics & Controls
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Accounts receivable, net	3,799	5,360
Inventories	12,436	14,763
Prepaid expenses	104	156
Current Assets of Businesses Held for Sale	16,339	20,279
Net property, plant and equipment	5,413	5,474
Intangibles, net	0	945
Deferred income tax benefits	(147)	(147)
Other assets	0	0
Non-Current Assets of Businesses Held for Sale	5,266	6,272
Accounts payable	1,124	1,878
Accrued liabilities	7,183	8,340
Current Liabilities of Businesses Held for Sale	8,307	10,218
Deferred income tax liabilities		0
Other liabilities	642	2,215
Non-Current Liabilities of Businesses Held for Sale	642	2,215
Net Assets of Businesses Held for Sale	12,656	14,118
Sensors & Systems
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Accounts receivable, net	0	0
Inventories	0	0
Prepaid expenses	0	0
Current Assets of Businesses Held for Sale	0	0
Net property, plant and equipment	0	0
Intangibles, net	0	0
Deferred income tax benefits	0	0
Other assets	0	0
Non-Current Assets of Businesses Held for Sale	0	0
Accounts payable	0	0
Accrued liabilities	0	0
Current Liabilities of Businesses Held for Sale	0	0
Deferred income tax liabilities		0
Other liabilities	0	0
Non-Current Liabilities of Businesses Held for Sale	0	0
Net Assets of Businesses Held for Sale	0	0
Advanced Materials
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Accounts receivable, net	2,287	1,546
Inventories	6,918	5,841
Prepaid expenses	177	185
Current Assets of Businesses Held for Sale	9,382	7,572
Net property, plant and equipment	10,618	12,199
Intangibles, net	4,268	4,928
Deferred income tax benefits	777	0
Other assets	1,474	1,518
Non-Current Assets of Businesses Held for Sale	17,137	18,645
Accounts payable	4,598	4,837
Accrued liabilities	5,142	2,051
Current Liabilities of Businesses Held for Sale	9,740	6,888
Deferred income tax liabilities		194
Other liabilities	0	0
Non-Current Liabilities of Businesses Held for Sale	0	194
Net Assets of Businesses Held for Sale	$ 16,779	$ 19,135