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Derivatives and Hedging Activities - Narrative (Details) $ in Thousands, € in Millions, kr in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Jun. 30, 2024 USD ($) | Jun. 30, 2023 USD ($) | Jun. 30, 2024 USD ($) | Jun. 30, 2023 USD ($) | Sep. 30, 2023 USD ($) | Jun. 30, 2024 EUR (€) | Jun. 30, 2024 SEK (kr) | Sep. 30, 2023 EUR (€)
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |  |  |  |  |
Derivative asset, noncurrent, statement of financial position [extensible enumeration] | Other assets, Other liabilities |  | Other assets, Other liabilities |  | Other assets, Other liabilities | Other assets, Other liabilities | Other assets, Other liabilities | Other assets, Other liabilities
Proceeds from net investment hedge |  |  | $ 17,416 | $ 0 |  |  |  |
Foreign Line of Credit |  |  |  |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |  |  |  |  |
Outstanding borrowings | $ 58,947 |  | 58,947 |  | $ 58,168 | € 55.0 |  | € 55.0
Designated as Hedging Instrument |  |  |  |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |  |  |  |  |
Unrealized gain expected to be recognized over the next 12 months | 2,580 |  | 2,580 |  |  |  |  |
Interest Rate Swaps | Cash flow hedges | Designated as Hedging Instrument |  |  |  |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |  |  |  |  |
Unrealized gain on fair value of interest rate swaps, before tax |  |  | 2,257 |  | 4,006 |  |  |
Unrealized gain on fair value of interest rate swaps, after tax |  |  | 1,685 |  | 2,991 |  |  |
Derivative, notional amount | 175,000 |  | 175,000 |  | 175,000 |  |  |
LIBOR-Based Swap | Cash flow hedges | Designated as Hedging Instrument |  |  |  |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |  |  |  |  |
Unrecognized gain on LIBOR-based swaps |  |  | 4,751 |  | 8,084 |  |  |
Unrecognized gain on LIBOR-based swaps, after tax |  |  | 3,549 |  | 6,041 |  |  |
Cross- Currency Swaps | Net investment hedges |  |  |  |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |  |  |  |  |
Derivative, notional amount | 20,000 |  | 20,000 |  |  |  | kr 212.7 |
Proceeds from net investment hedge |  |  | 17,416 |  |  |  |  |
Derivative liability | 17,416 |  | 17,416 |  |  |  |  |
Cross- Currency Swaps | Net investment hedges | Designated as Hedging Instrument |  |  |  |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |  |  |  |  |
Derivative, notional amount | 81,392 |  | 81,392 |  | 81,392 |  |  |
Net investment hedge, gain (loss), after reclassification and tax |  |  | 2,884 |  | 2,065 |  |  |
Net investment hedge, gain (loss), after reclassification, tax expense (benefit) |  |  | 979 |  | 701 |  |  |
Derivative asset, noncurrent | 3,863 |  | 3,863 |  | $ 2,766 |  |  |
Cross- Currency Swaps | Net investment hedges | Designated as Hedging Instrument | Interest Expense |  |  |  |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |  |  |  |  |
Net investment hedge income | $ 306 | $ 284 | 891 | $ 866 |  |  |  |
Foreign currency debt instruments | Net investment hedges | Designated as Hedging Instrument |  |  |  |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |  |  |  |  |
Net investment hedge, gain (loss), after reclassification and tax |  |  | 1,693 |  |  |  |  |
Net investment hedge, gain (loss), after reclassification, tax expense (benefit) |  |  | $ 574 |  |  |  |  |

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- Definition Amount of after tax unrealized gain (loss) related to the increase or decrease in fair value of interest rate derivatives designated as cash flow hedging instruments, which was recorded in accumulated other comprehensive income to the extent that the cash flow hedge was determined to be effective. + References No definition available. + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)(a)(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 + Details
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- Definition Amount of tax expense (benefit), after reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature, attributable to parent entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 810 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 19 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481231/810-10-45-19 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 20 -SubTopic 10 -Topic 810 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481231/810-10-45-20 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 1A -Subparagraph (c)(3) -SubTopic 10 -Topic 810 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481203/810-10-50-1A + 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 -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-11 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480627/815-20-45-3 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 10A -Subparagraph (dd) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-10A Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4C -Subparagraph (bb) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4C Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4CCC -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4CCC + Details
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