Risk Management and Use of Derivative Financial Instruments (Details 5) In Thousands, unless otherwise specified	Sep. 30, 2014 USD ($)	Sep. 30, 2014 Not Designated as Hedging Instrument Interest rate swap Euro USD ($) instrument	Sep. 30, 2014 Not Designated as Hedging Instrument Interest rate swap Euro EUR (€)	Sep. 30, 2014 Derivatives in Cash Flow Hedging Relationships Interest rate swap USD ($) instrument	Sep. 30, 2014 Derivatives in Cash Flow Hedging Relationships Interest rate swap Euro USD ($) instrument	Sep. 30, 2014 Derivatives in Cash Flow Hedging Relationships Interest rate swap Euro EUR (€)	Sep. 30, 2014 Derivatives in Cash Flow Hedging Relationships Interest rate caps Euro USD ($) instrument	Sep. 30, 2014 Derivatives in Cash Flow Hedging Relationships Interest rate caps Euro EUR (€)
Derivative Disclosure
Derivative number of instruments		3	3	14	2	2	2	2
Face Amount			€ 108,048	$ 130,298		€ 8,225		€ 107,554
Fair value	$ (13,137)	$ (9,033)		$ (2,957)	$ (1,153)		$ 6

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

The number of derivative instruments of a particular group held by the entity.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1B

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5580258-113959

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1A

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5579245-113959

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Fair value as of the balance sheet date of interest rate derivative assets, net of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized on the balance sheet.

+ 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)

-URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13433-108611

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 15

-URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13495-108611

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