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Restructuring and Divestiture Charges - Charges Taken Related to Accrued Restructuring Actions (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended		12 Months Ended												6 Months Ended
	Mar. 29, 2014	Mar. 30, 2013	Sep. 29, 2012 Fiscal 2012 Charges [Member] Restructuring [Member]	Sep. 29, 2012 Fiscal 2012 Charges [Member] Consolidation of Diagnostics Operations [Member] Restructuring [Member]	Sep. 29, 2012 Fiscal 2012 Charges [Member] Closure of Indianapolis Facility [Member] Restructuring [Member]	Sep. 29, 2012 Fiscal 2012 Charges [Member] Fiscal 2014 Actions [Member] Restructuring [Member]	Sep. 29, 2012 Fiscal 2012 Charges [Member] Fiscal 2013 Actions [Member] Restructuring [Member]	Sep. 29, 2012 Fiscal 2012 Charges [Member] Other Operating Cost Reductions [Member] Restructuring [Member]	Sep. 28, 2013 Fiscal 2013 Charges [Member] Restructuring [Member]	Sep. 28, 2013 Fiscal 2013 Charges [Member] Consolidation of Diagnostics Operations [Member] Restructuring [Member]	Sep. 28, 2013 Fiscal 2013 Charges [Member] Closure of Indianapolis Facility [Member] Restructuring [Member]	Sep. 28, 2013 Fiscal 2013 Charges [Member] Fiscal 2014 Actions [Member] Restructuring [Member]	Sep. 28, 2013 Fiscal 2013 Charges [Member] Fiscal 2013 Actions [Member] Restructuring [Member]	Sep. 28, 2013 Fiscal 2013 Charges [Member] Other Operating Cost Reductions [Member] Restructuring [Member]	Mar. 29, 2014 Fiscal 2014 Charges [Member] Restructuring [Member]	Mar. 29, 2014 Fiscal 2014 Charges [Member] Consolidation of Diagnostics Operations [Member] Restructuring [Member]	Mar. 29, 2014 Fiscal 2014 Charges [Member] Closure of Indianapolis Facility [Member] Restructuring [Member]	Mar. 29, 2014 Fiscal 2014 Charges [Member] Fiscal 2014 Actions [Member] Restructuring [Member]	Mar. 29, 2014 Fiscal 2014 Charges [Member] Fiscal 2013 Actions [Member] Restructuring [Member]	Mar. 29, 2014 Fiscal 2014 Charges [Member] Other Operating Cost Reductions [Member] Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Fiscal restructuring charges			$ 17,515	$ 14,787	$ 1,779			$ 949	$ 32,693	$ 13,950	$ 5,629		$ 11,374	$ 1,740	$ 29,688	$ 1,671	$ 683	$ 15,948	$ 932	$ 10,454
Non-cash impairment charges	(33,308)	(47)	(585)	(585)					(54)					(54)	(3,132)					(3,132)
Stock-based compensation			(3,500)	(3,500)					(7,917)	(6,322)			(1,595)		(4,761)			(4,731)	(30)
Severance payments			(2,629)	(2,423)				(206)	(21,438)	(13,068)	(3,048)		(4,425)	(897)	(15,988)	(421)	(3,946)	(6,123)	(4,176)	(1,322)
Other payments			(781)					(781)	(1,151)		(566)		(25)	(560)	(490)		(353)		(9)	(128)
Acquired			83	83
Foreign exchange and other adjustments			113	22				91	(10)	(2)			(14)	6	2				(3)	5
Balance			$ 10,216	$ 8,384	$ 1,779			$ 53	$ 12,339	$ 2,942	$ 3,794		$ 5,315	$ 288	$ 17,658	$ 4,192	$ 178	$ 5,094	$ 2,029	$ 6,165

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- Definition

Represents restructuring accruals obtained through a business acquisition.

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- Definition

Severance payments.

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- Definition

Payments to settle other restructuring charges.

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- Definition

Represents changes to the restructuring accruals as a result of foreign currency translation and other insignificant adjustments.

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- Definition

Total restructuring charges under exit or disposal plan.

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- Definition

Share based compensation expense included other restructuring costs.

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- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585



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-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 45

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2420-110228

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- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SAB TOPIC 5.P.4(b))

-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747



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-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section P

-Subsection 3, 4

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