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Derivative Instruments and Hedging Activities (Impact of Derivative Instruments on Earnings) (Details) - USD ($) $ in Thousands | 3 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021
Derivative Instruments Gain Loss [Line Items] |  |
Amount of (Income) Expense Recognized in Earnings on Derivative | $ 38,186 | $ (10,075)
Amount of (Gain) Loss Recognized in Accumulated OCI on Derivative | 32,588 | (12,369)
Amount of (Gain) Loss Reclassified from Accumulated OCI into Earnings | 38,186 | (10,075)
Floating-Rate Cross Currency Interest Rate Contract [Member] | Derivatives in Fair Value Hedging Relationships [Member] |  |
Derivative Instruments Gain Loss [Line Items] |  |
Amount of (Income) Expense Recognized in Earnings on Derivative | $ 901 | $ (622)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Selling General And Administrative Expense | Selling General And Administrative Expense
Amount of (Gain) Loss Recognized in Accumulated OCI on Derivative | $ 896 | $ (500)
Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration] | Selling General And Administrative Expense | Selling General And Administrative Expense
Amount of (Gain) Loss Reclassified from Accumulated OCI into Earnings | $ 901 | $ (622)
Fixed-Rate Cross Currency Interest Rate Contract [Member] | Cash Flow Hedging |  |
Derivative Instruments Gain Loss [Line Items] |  |
Amount of (Income) Expense Recognized in Earnings on Derivative | $ 37,285 | $ (9,453)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Selling General And Administrative Expense | Selling General And Administrative Expense
Amount of (Gain) Loss Recognized in Accumulated OCI on Derivative | $ 31,692 | $ (11,869)
Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration] | Selling General And Administrative Expense | Selling General And Administrative Expense
Amount of (Gain) Loss Reclassified from Accumulated OCI into Earnings | $ 37,285 | $ (9,453)

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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b)(1) -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959 + Details
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- Definition Indicates line item in statement of income or comprehensive income that includes gain (loss) from derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b)(1) -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959 + Details
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- Definition Indicates line item in statement of income or comprehensive income that includes gain (loss) from effective portion of derivative instrument reclassified from accumulated other comprehensive income (AOCI) into income. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4D -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5624177-113959 + Details
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- Definition The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4D -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5624177-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5624171-113959 + Details
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- Definition Amount, before tax and adjustments, of gain (loss) from increase (decrease) in value of excluded component of derivative designated and qualifying as hedge. Adjustments include, but are not limited to, reclassifications for sale and settlement, and amounts recognized under systematic and rational method. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (dd) -URI https://asc.fasb.org/extlink&oid=126968391&loc=SL7669646-108580 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (bb) -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5624171-113959 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI https://asc.fasb.org/extlink&oid=126968391&loc=d3e637-108580 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4CCC -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL109998896-113959 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 20 -Section 45 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=121577181&loc=SL110061190-113977 + Details
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