Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Intangible Assets [Line Items]
Total Cost	$ 163,604	$ 169,224
Accumulated Amortization	(70,335)	(69,821)
Intangible Assets, net	93,269us-gaap_FiniteLivedIntangibleAssetsNet	99,403us-gaap_FiniteLivedIntangibleAssetsNet
Below Market Lease, Gross	52,414us-gaap_BelowMarketLeaseGross	53,049us-gaap_BelowMarketLeaseGross
Below Market Lease, Accumulated Amortization	27,901	27,039
Below Market Lease, Net	24,513us-gaap_BelowMarketLeaseNet	26,010us-gaap_BelowMarketLeaseNet
In-place lease value
Intangible Assets [Line Items]
Total Cost	126,573	129,411
Accumulated Amortization	(43,942)	(42,068)
Intangible Assets, net	82,631	87,343
Tenant relationship value
Intangible Assets [Line Items]
Total Cost	31,390	34,172
Accumulated Amortization	(24,777)	(26,344)
Intangible Assets, net	6,613	7,828
Above market leases acquired
Intangible Assets [Line Items]
Total Cost	5,641	5,641
Accumulated Amortization	(1,616)	(1,409)
Intangible Assets, net	$ 4,025	$ 4,232

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Amount of accumulated amortization of leases acquired as part of a real property acquisition at below market lease rate with a finite life.

+ References

No definition available.

+ Details

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- Definition

Amount before amortization of leases acquired as part of a real property acquisition at below market lease rate with a finite life.

+ References

No definition available.

+ Details

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- Definition

Amount after amortization of leases acquired as part of a real property acquisition at below market lease rate with a finite life.

+ References

No definition available.

+ Details

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- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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)(1)

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

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

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

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