Additional Debt Disclosures [Abstract]

No definition available.

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- Definition

The aggregate carrying value of real estate assets posted as collateral for the mortgage loans.

+ References

No definition available.

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- Definition

The amount of new mortgages acquired during the period.

+ References

No definition available.

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- Definition

The ownership interest in jointly owned investments by the reporting entity.

+ References

No definition available.

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- Definition

The cash outflow for the early payment of the principal amount on outstanding mortgage debt.

+ References

No definition available.

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- Definition

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

+ 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))

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Weighted average interest rate of debt outstanding.

+ References

No definition available.

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 50

-Section 40

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- Definition

Stated maturity date of the mortgage loan receivable on real estate, in CCYY-MM-DD format.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

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- Definition

The highest stated interest rate within the mortgage loans included in the loan grouping.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 10

-Section S99

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- Definition

The lowest stated interest rate within the mortgage loans included in the loan grouping.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 948

-SubTopic 310

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-Subparagraph (SX 210.12-29.3)

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- Definition

Amount of debt for which creditor does not have general recourse to the debtor but rather has recourse only to the property used for collateral in the transaction or other specific property.

+ References

No definition available.

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- Definition

Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 830

-SubTopic 30

-Section 45

-Paragraph 20

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-Topic 220

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Non-Recourse Debt (Narratives) (Details) $ in Thousands	3 Months Ended		6 Months Ended
Non-Recourse Debt (Narratives) (Details) $ in Thousands	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($) loan	Jun. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)
Additional Debt Disclosures
Mortgage notes payable, collateral	$ 2,900,000		$ 2,900,000		$ 2,900,000
Mortgages obtained \| loan			5
Non-recourse mortgage loans	$ 101,900		$ 101,900
Debt, weighted average interest rate	4.40%		4.40%
Prepayment of mortgage principal			$ 21,200
Debt instrument terms (years)			9 years 9 months 18 days
Loss on the extinguishment of debt			$ (300)
Effects of foreign currency translation on balance sheet item	$ 28,840	$ (5,010)	(59,890)	$ (6,070)
WPC
Additional Debt Disclosures
Prepayment of mortgage principal			$ 8,600
Ownership interest in joint venture	40.00%		40.00%
Debt instrument terms (years)			1 year 2 months 12 days
Interest rate on debt	8.00%		8.00%
Minimum
Additional Debt Disclosures
Debt maturity date			Jul. 31, 2015
Maximum
Additional Debt Disclosures
Debt maturity date			Dec. 31, 2039
Investments made in prior years
Additional Debt Disclosures
Non-recourse mortgage loans	$ 30,000		$ 30,000
Current
Additional Debt Disclosures
Non-recourse mortgage loans	$ 71,900		$ 71,900
Fixed interest rate
Additional Debt Disclosures
Mortgage loan real estate, minimum interest rate			2.00%
Mortgage loan real estate, maximum interest rate			7.50%
Variable interest rate
Additional Debt Disclosures
Mortgage loan real estate, minimum interest rate			2.80%
Mortgage loan real estate, maximum interest rate			6.10%
Non-recourse debt
Additional Debt Disclosures
Effects of foreign currency translation on balance sheet item			$ (39,200)