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

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

-Sentence Column B

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- Definition

Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Tax

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Forward Contract Term

+ References

No definition available.

+ Details

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Balance Type:	na
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- Definition

Total Variable-Rate Debt Outstanding

+ References

No definition available.

+ Details

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- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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- Details

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- Definition

Fair value as of the balance sheet date of all interest rate derivative assets designated as cash flow hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4B

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 17

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Derivatives (Details)			0 Months Ended
Derivatives (Details)	Sep. 30, 2013 USD ($)	Dec. 19, 2012 USD ($)	Feb. 28, 2013 30 Day Forward Contract EURO [Member] EUR (€)	Feb. 28, 2013 30 Day Forward Contract GBP [Member] GBP (£)
Derivative [Line Items]
Total Variable-Rate Debt Outstanding		$ 150,000,000
Derivative, Fixed Interest Rate		0.98%
Forward Contract Term			30 days	30 days
Interest Rate Cash Flow Hedge Asset at Fair Value	745,000
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Tax	(290,000)
Derivative, Notional Amount			€ 411,000	£ 408,000