Credit Facilities, Short-term Borrowings and Long-term Debt (Narrative) (Details) - USD ($) $ in Thousands	9 Months Ended
Jun. 30, 2022	Sep. 30, 2021
Debt Instrument [Line Items]
Short-term borrowings	$ 49,200
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	1,000,000
Line of credit facility, maximum borrowing capacity extension	1,500,000
Outstanding borrowings		$ 0
Principal amount borrowing outstanding	$ 49,200
Effective interest rate	0.0290
Foreign Lines of Credit And Overdraft Facilities [Member]
Debt Instrument [Line Items]
Short-term borrowings	$ 0	$ 0
Minimum [Member] \| SOFR [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	0.875%
Maximum [Member] \| SOFR [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.75%

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

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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

Fair value of the amount outstanding under the credit facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI https://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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- Definition

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 852
-SubTopic 10
-Section 55
-Paragraph 10
-URI https://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766

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-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16)(a)(1))
-URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(13))
-URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878

+ Details

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- Definition

Effective interest rate.

+ References

No definition available.

+ Details

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- Definition

Maximum borrowing capacity under the credit facility that the facility can be extended to subject to lenders’ consideration and without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

No definition available.

+ Details

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Balance Type:	credit
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- Definition

Principal amount outstanding.

+ References

No definition available.

+ Details

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- Details

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