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FAIR VALUE MEASUREMENTS (Details) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2020 USD ($) | Jun. 30, 2020 USD ($) $ / shares
Australian Dollar Forward Contracts | Cost of goods and services |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Gain reclassified for settled contracts | $ 556 | $ 1,550
Designated as Hedging Instrument | Australian Dollar Forward Contracts |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative asset, notional amount | 43,500 | $ 43,500
Contracts weighted average rate price (in dollars per share) | $ / shares |  | $ 1.46
Deferred losses from currency translation included in AOCI | 1,095 | $ 1,095
Deferred losses from currency translation included in AOCI, net of tax | 712 | $ 712
Designated as Hedging Instrument | Australian Dollar Forward Contracts | Minimum |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Foreign currency contracts duration |  | 15 days
Designated as Hedging Instrument | Australian Dollar Forward Contracts | Maximum |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Foreign currency contracts duration |  | 209 days
Not Designated as Hedging Instrument | Minimum |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Foreign currency contracts duration |  | 2 days
Not Designated as Hedging Instrument | Maximum |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Foreign currency contracts duration |  | 328 days
Not Designated as Hedging Instrument | Canadian Dollar Forward Contracts |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative asset, notional amount | $ 3,125 | $ 3,125
Derivative, average forward exchange rate | 1.36 | 1.36
Not Designated as Hedging Instrument | British Pound Forward Contracts |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative asset, notional amount | $ 3,000 | $ 3,000
Derivative, average forward exchange rate | 0.81 | 0.81
Fair Value, Inputs, Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Insurance contracts fair value | $ 3,324 | $ 3,324
Fair Value, Inputs, Level 2 | Other Income |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Gain (loss) on foreign currency derivative instruments not designated as hedging instruments | (222) | (23)
Fair Value, Inputs, Level 2 | Not Designated as Hedging Instrument | Other Income |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Realized gains (losses) | 115 | 202
Fair Value, Inputs, Level 2 | Estimate of Fair Value Measurement |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Trading securities | 3,028 | 3,028
Fair Value, Inputs, Level 2 | Portion at Other than Fair Value Measurement |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Trading securities | 2,365 | 2,365
Senior notes due 2028 | Fair Value, Inputs, Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Convertible debt, fair value disclosures | $ 980,000 | $ 980,000

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- Definition Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=121641772&loc=d3e637-108580 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=121641772&loc=d3e681-108580 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 45 -Paragraph 5A -URI http://asc.fasb.org/extlink&oid=116690757&loc=SL116692626-108610 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669646-108580 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669686-108580 + Details
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