DEBT AND OTHER OBLIGATIONS DEBT AND OTHER OBLIGATIONS (Notes)	3 Months Ended
	Dec. 27, 2014
Debt Disclosure [Abstract]
Debt and Other Obligations	DEBT AND OTHER OBLIGATIONS Financing obligation On December 1, 2013, Kulicke & Soffa Pte Ltd. (“Pte”), the Company's wholly owned subsidiary, signed a lease with DBS Trustee Limited as trustee of Mapletree Industrial Trust (the “Landlord”) to lease from the Landlord approximately 198,000 square feet, representing approximately 70% of a building in Singapore as our corporate headquarters, manufacturing, technology, sales and service center (the “Building”). The lease has a 10 year non-cancellable term (the "Initial Term") and contains options to renew for 2 further 10 -year terms. The annual rent and service charge for the Initial Term range from approximately $4 million to approximately $5 million Singapore dollars. Pursuant to the agreement to develop and lease (the "ADL") and in accordance with ASC No. 840, Leases ("ASC 840"), the Company was considered to be the owner of the Building during the construction phase due to its involvement in the asset construction. Following the completion of construction, we performed a sale-leaseback analysis pursuant to ASC 840-40 to determine if we could remove the Landlord’s asset and associated financing obligation from the consolidated balance sheet. Our lease contained collateral, considered a prohibited form of continuing involvement under ASC 840-40 and therefore involvement that precluded us from derecognizing the asset and associated financing obligation. As such, we reclassified the asset from construction in progress to Property, Plant and Equipment and began to depreciate the building over its estimated useful life of twenty-five years. We concluded that the term of the financing obligation is 10 years. This is equal to the non-cancellable term of our lease agreement with the Landlord. At the inception of the lease, the asset and financing obligation recorded on the balance sheet was $20.0 million, which was based on using an interest rate of 6.3% over the Initial Term. The financing obligation will be settled through a combination of periodic cash rental payments and the return of the leased property at the expiration of the lease. We do not report rent expense for the property which is deemed owned for accounting purposes. Rather, rental payments required under the lease are considered debt service and applied to the deemed landlord financing obligation and interest expense. The Building and financing obligation are being amortized in a manner that will not generate a gain or loss upon lease termination. Credit facility On November 22, 2013, the Company obtained a $5.0 million credit facility with Citibank in connection with the issuance of a bank guarantee of $3.4 million Singapore dollars to the Landlord in connection with the lease. The bank guarantee was effective from December 1, 2013 to November 30, 2014. On November 19, 2014, the Company extended the expiration date of the bank guarantee to November 30, 2015 and increased the amount to $3.5 million Singapore dollars.

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

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