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

No definition available.

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- Definition

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ References

No definition available.

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

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-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-Section 45
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-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

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- Definition

Date the debt instrument was issued, in CCYY-MM-DD format.

+ References

+ 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

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
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-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28555-108399

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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Date the credit facility terminates, in CCYY-MM-DD format.

+ References

+ 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/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (a)
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- Definition

The effective interest rate at the end of the reporting period.

+ References

+ Details

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- 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

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Long-term Debt (Narrative) (Details) € in Thousands	3 Months Ended
Long-term Debt (Narrative) (Details) € in Thousands	Dec. 31, 2017 EUR (€)	Dec. 31, 2017 USD ($)	Sep. 30, 2017 USD ($)
Debt Instrument [Line Items]
Face Amount \| €	€ 160,000
Balance of unamortized debt issuance costs		$ 1,720,000	$ 1,794,000
The Notes [Member]
Debt Instrument [Line Items]
Balance of unamortized debt issuance costs		1,720,000	1,794,000
2013 Note Purchase Agreement [Member]
Debt Instrument [Line Items]
Issuance Date	Oct. 01, 2013
Face Amount		$ 250,000,000
Series J Notes [Member]
Debt Instrument [Line Items]
Variable interest rate	2.69%	2.69%
First Closing Notes [Member]
Debt Instrument [Line Items]
Issuance Date	Oct. 01, 2013
Second Closing Notes [Member]
Debt Instrument [Line Items]
Issuance Date	Nov. 15, 2013
Series D Notes [Member]
Debt Instrument [Line Items]
Issuance Date	Oct. 01, 2008
Series F Notes [Member]
Debt Instrument [Line Items]
Issuance Date	Apr. 01, 2009
2016 Note Purchase Agreements [Member]
Debt Instrument [Line Items]
Issuance Date	Sep. 23, 2016
Face Amount \| €	€ 160,000
Series M Notes [Member]
Debt Instrument [Line Items]
Face Amount \| €	40,000
Series N Notes [Member]
Debt Instrument [Line Items]
Face Amount \| €	77,000
Series O Notes [Member]
Debt Instrument [Line Items]
Face Amount \| €	€ 43,000
Foreign Lines of Credit And Overdraft Facilities [Member]
Debt Instrument [Line Items]
Outstanding borrowings		$ 0
Revolving Credit Agreement [Member]
Debt Instrument [Line Items]
Variable Rate Basis	LIBOR
Line of Credit Facility, Expiration Date	Apr. 01, 2020
Line of Credit Facility, Maximum Borrowing Capacity		1,000,000,000
Outstanding borrowings		$ 66,300,000	$ 32,600,000
Credit facility effective interest rate on outstanding borrowing	2.52%	2.52%	2.29%
Revolving Credit Agreement [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Basis Spread On Variable Rate	0.85%
Revolving Credit Agreement [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Basis Spread On Variable Rate	1.65%