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Derivative Instruments and Hedging Activities (Impact of Derivative Instruments on Earnings) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2022 | Mar. 31, 2021 | Mar. 31, 2022 | Mar. 31, 2021
Derivative Instruments Gain Loss [Line Items] |  |  |  |
Amount of (Income) Expense Recognized in Earnings on Derivative | $ (6,256) | $ (20,683) | $ (16,331) | $ 277
Amount of (Gain) Loss Recognized in Accumulated OCI on Derivative | (12,411) | (8,892) | (24,780) | 21,766
Amount of (Gain) Loss Reclassified from Accumulated OCI into Earnings | (6,256) | (20,683) | (16,331) | 277
Floating-Rate Cross Currency Interest Rate Contract [Member] | Derivatives in Fair Value Hedging Relationships [Member] | Selling, General and Administrative Expenses [Member] |  |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |  |
Amount of (Income) Expense Recognized in Earnings on Derivative | (297) | (1,660) | (919) | 190
Amount of (Gain) Loss Recognized in Accumulated OCI on Derivative | (557) | (1,401) | (1,057) | 262
Amount of (Gain) Loss Reclassified from Accumulated OCI into Earnings | (297) | (1,660) | (919) | 190
Fixed-Rate Cross Currency Interest Rate Contract [Member] | Cash Flow Hedging | Selling, General and Administrative Expenses [Member] |  |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |  |
Amount of (Income) Expense Recognized in Earnings on Derivative | (5,959) | (19,023) | (15,412) | 87
Amount of (Gain) Loss Recognized in Accumulated OCI on Derivative | (11,854) | (7,491) | (23,723) | 21,504
Amount of (Gain) Loss Reclassified from Accumulated OCI into Earnings | $ (5,959) | $ (19,023) | $ (15,412) | $ 87

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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 http://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + 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 http://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 http://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 http://asc.fasb.org/extlink&oid=124509347&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 http://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 http://asc.fasb.org/extlink&oid=124509347&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 http://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 http://asc.fasb.org/extlink&oid=121577181&loc=SL110061190-113977 + Details
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