Total notional amount of all derivative instruments designated as net investment hedge in a foreign operation.

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- Definition

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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- Definition

Accumulated change, net of tax, in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Includes an entity's share of an equity investee's Increase or Decrease in deferred hedging gains or losses.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 10A
-Subparagraph (d)
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-Name Accounting Standards Codification
-Topic 815
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-Section 50
-Paragraph 2
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No definition available.

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- Definition

Amount of gain (loss) from the ineffectiveness of the hedge.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
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- Definition

Amount, after tax, of reclassification from other comprehensive income (loss) to earnings from the sale or complete or substantially complete liquidation of an investment in a foreign entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
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-Paragraph 20
-Subparagraph (d)(c)
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- Definition

The estimated net amount of unrealized gains or losses on foreign currency cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 30
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- Definition

Amount, after tax, of cumulative translation adjustment attributable to gain (loss) on foreign currency derivatives that are designated as, and are effective as, economic hedges of a net investment in a foreign entity.

+ References

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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Narrative) (Details) € in Millions	1 Months Ended	3 Months Ended	6 Months Ended
	Nov. 30, 2017 EUR (€)	Apr. 30, 2017 USD ($)	Apr. 30, 2018 USD ($)	Apr. 30, 2017 USD ($)	Oct. 31, 2017 USD ($)
Derivative financial instruments:
Notional principal of foreign exchange contracts			$ 156,500,000		$ 134,300,000
(Losses) gains, net of tax, related to cash flow hedges deferred in Accumulated Other Comprehensive Loss			(1,400,000)
Unrealized gain (loss), net of tax, to be reclassified in next 12 months			(339,000)
Gain (loss) on hedge ineffectiveness		$ 32,000		$ 168,000
Not Designated as Hedging Instrument [Member]
Derivative financial instruments:
Notional principal of foreign exchange contracts			58,100,000
Forward Contracts [Member] \| Designated as Hedging Instrument [Member]
Derivative financial instruments:
Realized gain on net investment hedge			637,000
Notional amount of derivatives designated as net investment hedge \| €	€ 3.0
Unrealized gain (loss), net of tax, recorded as cumulative translation adjustments in Accumulated Other Comprehensive Loss			39,000
Euros [Member] \| Designated as Hedging Instrument [Member]
Derivative financial instruments:
Notional principal of foreign exchange contracts			41,000,000
Pounds Sterling [Member] \| Designated as Hedging Instrument [Member]
Derivative financial instruments:
Notional principal of foreign exchange contracts			10,900,000
New Taiwan Dollars [Member] \| Designated as Hedging Instrument [Member]
Derivative financial instruments:
Notional principal of foreign exchange contracts			$ 41,800,000