XML 48 R36.htm IDEA: XBRL DOCUMENT
v3.8.0.1

DERIVATIVE FINANCIAL INSTRUMENT (Tables) | 12 Months Ended
--- | ---
Sep. 30, 2017
Derivative financial Instruments [Abstract] |
Schedule of Fair Value of Derivative Instruments on Balance Sheet | The fair value of derivative instruments on our Consolidated Balance Sheet as of September 30, 2017 and October 1, 2016 is as follows:
| As of
(in thousands) | September 30, 2017 |  | October 1, 2016
| Notional Amount |  | Fair Value Asset Derivatives(1) |  | Notional Amount |  | Fair Value Liability Derivatives(2)
Derivatives designated as hedging instruments: |  |  |  |  |  |  |
Foreign exchange forward contracts (2) | $ | 36,404 |  |  | $ | 1,353 |  |  | $ | 28,997 |  |  | $ | 462 |
Total derivatives | $ | 36,404 |  |  | $ | 1,353 |  |  | $ | 28,997 |  |  | $ | 462 |
(1) | The fair value of derivative assets is measured using level 2 fair value inputs and is included in prepaid expenses and other current assets on our Consolidated Balance Sheet.
(2) | The fair value of derivative liabilities is measured using level 2 fair value inputs and is included in accrued expenses and other current liabilities on our Consolidated Balance Sheet.
(3) | Hedged amounts expected to be recognized to income within the next twelve months.
Derivative Instruments, Gain (Loss) [Table Text Block] | The effect of derivative instruments designated as cash flow hedges in our Consolidated Statements of Operations for the year ended September 30, 2017 and October 1, 2016 was as follows:
(in thousands) | Fiscal
| 2017 |  | 2016
Foreign exchange forward contract in cash flow hedging relationships: |  |  |
Net gain / (loss) recognized in OCI, net of tax(1) | $ | 669 |  |  | $ | (566 | )
Net loss reclassified from accumulated OCI into income, net of tax(2) | $ | (1,146 | ) |  | $ | (104 | )
Net gain recognized in income(3) | $ | — |  |  | $ | — |
(1) | Net change in the fair value of the effective portion classified in other comprehensive income (“OCI”).
(2) | Effective portion classified as selling, general and administrative expense.
(3) | Ineffective portion and amount excluded from effectiveness testing classified in selling, general and administrative expense.

X
- Definition Derivative financial Instruments [Abstract] + References No definition available. + Details
Name: | klic_DerivativefinancialInstrumentsAbstract
Namespace Prefix: | klic_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the location and amount of derivative instruments and nonderivative instruments designated as hedging instruments reported before netting adjustments, and the amount of gain (loss) on derivative instruments and nonderivative instruments designated and qualified as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5618551-113959 + Details
Name: | us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624163-113959 + Details
Name: | us-gaap_ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration