Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Face (par) amount of debt instrument at time of issuance.

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The average effective interest rate during the reporting period.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

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

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Fixed interest rate related to the interest rate derivative.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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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.

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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.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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Amount of borrowings classified as other, maturing within one year or the normal operating cycle, if longer.

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Credit Agreements (Details) $ in Thousands	1 Months Ended	3 Months Ended
Credit Agreements (Details) $ in Thousands	May 31, 2013 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2016 EUR (€)	Sep. 30, 2016 USD ($)	Jun. 30, 2016 USD ($)	Oct. 01, 2015	Sep. 30, 2015 USD ($)	Jun. 12, 2015 USD ($)	Jul. 25, 2013	Sep. 30, 2011
Line of Credit Facility [Line Items]
Derivative, Notional Amount				$ 486,600	$ 468,700
Letters of Credit Outstanding, Amount				10,700
Long-term Debt, Gross				523,300				$ 7,100
Interest rate swap, fixed interest rate	0.73%					1.104%
JP Morgan [Member]
Line of Credit Facility [Line Items]
Transfers of Financial Assets Including Debt Activity		$ 700
Other Short-term Borrowings							$ 0
JP Morgan UK [Member]
Line of Credit Facility [Line Items]
Credit agreement maximum borrowing capacity				4,500
Remaining borrowing available under revolving credit facility				4,500
RBSNederlandNV [Member]
Line of Credit Facility [Line Items]
Credit agreement maximum borrowing capacity \| €			€ 4,000,000
Remaining borrowing available under revolving credit facility \| €			4,000,000
Maximum [Member] \| JPMorganLOC [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Interest Rate During Period		4.00%
Maximum [Member] \| RBSLOC [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Interest Rate During Period		4.00%
Minimum [Member] \| JPMorganLOC [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Interest Rate During Period		2.00%
Minimum [Member] \| RBSLOC [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Interest Rate During Period		2.00%
Senior Notes due in 2020 [Member]
Line of Credit Facility [Line Items]
Deferred Finance Costs, Noncurrent, Net							200
ERROR in label resolution.
Line of Credit Facility [Line Items]
Interest rate swap, fixed interest rate										1.30%
Principal amount of debt hedged with an interest rate swap agreement	$ 100,000	$ 100,000
Uncommitted Overdraft Facility [Member] \| Unsecured Debt [Member] \| ING Bank NV [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Face Amount \| €			7,500,000.0
Debt Instrument, Unused Borrowing Capacity, Amount \| €			€ 7,500,000
Uncommitted Overdraft Facility [Member] \| Unsecured Debt [Member] \| Maximum [Member] \| ING Bank NV [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Interest Rate, Stated Percentage					4.00%
Uncommitted Overdraft Facility [Member] \| Unsecured Debt [Member] \| Minimum [Member] \| ING Bank NV [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Interest Rate, Stated Percentage					2.00%
Senior Notes due in 2020 [Member] \| Senior Notes [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Interest Rate, Stated Percentage									3.11%
Long-term Debt, Gross							$ 100,000
Designated as Hedging Instrument [Member]
Line of Credit Facility [Line Items]
Derivative, Notional Amount				$ 372,900	$ 384,500