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Amount of amortization expense expected to be recognized in the remainder of the fiscal year following the latest fiscal year ended for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

No definition available.

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Amount of amortization expense expected to be recognized during the fifth fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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Amount of amortization expense expected to be recognized during the fourth fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of amortization expense expected to be recognized during the third fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of amortization expense expected to be recognized during the second fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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The net decrease in rental revenue after the fifth fiscal year following the latest fiscal year.

No definition available.

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The net decrease in rental revenue during the fifth fiscal year following the latest fiscal year.

No definition available.

Name:	wpc_DecreaseInRentalRevenueYearFive
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The net decrease in rental revenue during the fourth fiscal year following the latest fiscal year.

No definition available.

Name:	wpc_DecreaseInRentalRevenueYearFour
Namespace Prefix:	wpc_
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The net decrease in rental revenue during the third fiscal year following the latest fiscal year.

No definition available.

Name:	wpc_DecreaseInRentalRevenueYearThree
Namespace Prefix:	wpc_
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The net decrease in rental revenue during the second fiscal year following the latest fiscal year.

No definition available.

Name:	wpc_DecreaseInRentalRevenueYearTwo
Namespace Prefix:	wpc_
Data Type:	xbrli:monetaryItemType
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- Details

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Amount after amortization of assets and liabilities, excluding financial assets and liabilities, lacking physical substance with a finite life.

No definition available.

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- Details

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The net increase to amortization expense for intangible assets and liabilities for future periods.

No definition available.

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Namespace Prefix:	wpc_
Data Type:	xbrli:monetaryItemType
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The increase in amortization expense expected to be recognized on finite lived intangible assets and liabilities during the next fiscal year following the latest fiscal year.

No definition available.

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Data Type:	xbrli:monetaryItemType
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The increase in amortization expense expected to be recognized on finite lived intangible assets and liabilities during after the fifth fiscal year following the latest fiscal year.

No definition available.

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Namespace Prefix:	wpc_
Data Type:	xbrli:monetaryItemType
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The increase in amortization expense expected to be recognized on finite lived intangible assets and liabilities during the fifth fiscal year following the latest fiscal year.

No definition available.

Name:	wpc_IncreaseInAmortizationExpenseYearFive
Namespace Prefix:	wpc_
Data Type:	xbrli:monetaryItemType
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The increase in amortization expense expected to be recognized on finite lived intangible assets and liabilities during the fourth fiscal year following the latest fiscal year.

No definition available.

Name:	wpc_IncreaseInAmortizationExpenseYearFour
Namespace Prefix:	wpc_
Data Type:	xbrli:monetaryItemType
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The increase in amortization expense expected to be recognized on finite lived intangible assets and liabilities during the third fiscal year following the latest fiscal year.

No definition available.

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Namespace Prefix:	wpc_
Data Type:	xbrli:monetaryItemType
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The increase in amortization expense expected to be recognized on finite lived intangible assets and liabilities during the second fiscal year following the latest fiscal year.

No definition available.

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Namespace Prefix:	wpc_
Data Type:	xbrli:monetaryItemType
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Period Type:	duration

The net decrease in rental income for future periods as of the balance sheet date.

No definition available.

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Namespace Prefix:	wpc_
Data Type:	xbrli:monetaryItemType
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- Details

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The net decrease in rental revenue for the next fiscal year following the latest fiscal year.

No definition available.