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COMMITMENTS, CONTINGENCIES AND CONCENTRATIONS (Narrative) (Details) ft² in Thousands, $ in Thousands	9 Months Ended
	Jul. 02, 2016 USD ($)	Oct. 03, 2015 USD ($)	Dec. 01, 2013 USD ($) ft²
Other Commitments [Line Items]
Area of Land | ft²			198
Percentage Of Building Area Agreed To Lease From Landlord			70.00%
Lessee Leasing Arrangements, Operating Leases, Term of Contract	10 years
Period Of Warranty For Manufacturing Defects	1 year
Lease Expiration Year	2018
Financing obligation | $	$ 17,084	$ 16,483	$ 20,000
Building [Member]
Other Commitments [Line Items]
Property, Plant and Equipment, Useful Life	25 years

X

- Definition

The year in which lease expires.

+ References

No definition available.

+ Details

Name:	klic_LeaseExpirationYear
Namespace Prefix:	klic_
Data Type:	xbrli:gYearItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents percentage of building area agreed to lease from the landlord.

+ References

No definition available.

+ Details

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Namespace Prefix:	klic_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Representing period of warranty for manufacturing defects.

+ References

No definition available.

+ Details

Name:	klic_PeriodOfWarrantyForManufacturingDefects
Namespace Prefix:	klic_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Area of land held.

+ References

No definition available.

+ Details

Name:	us-gaap_AreaOfLand
Namespace Prefix:	us-gaap_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Term of the lessee's leasing arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_OtherCommitmentsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Present value of minimum lease payments for sale-leaseback transactions accounted for using the deposit method or as a financing.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6455398&loc=d3e45280-112737

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

+ Details

Name:	us-gaap_PropertyPlantAndEquipmentUsefulLife
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Details

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Namespace Prefix:
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Balance Type:
Period Type: