Supplemental Detail for Certain Components of Consolidated Balance Sheets (Details 4) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Accounts payable and accrued expenses
Accrued costs on properties under development	$ 11,498	$ 18,011
Property taxes payable	9,641	11,634
Other items	21,838	29,723
Total accounts payable and accrued expenses	77,594	123,287
Acquired lease intangible liabilities, net
Acquired below-market leases	254,381	243,025
Accumulated amortization of acquired below-market leases	(26,190)	(22,556)
Acquired lease intangible liabilities	228,191o_FiniteLivedIntangibleLiabilitiesNet	220,469o_FiniteLivedIntangibleLiabilitiesNet
Other liabilities
Rent received in advance	30,933us-gaap_AdvanceRent	36,122us-gaap_AdvanceRent
Security deposits	5,996us-gaap_SecurityDepositLiability	5,876us-gaap_SecurityDepositLiability
Capital lease obligations	4,475us-gaap_ContractualObligation	4,397us-gaap_ContractualObligation
Preferred units issued upon acquisition of ARCT		6,750
Total other liabilities	41,404us-gaap_OtherLiabilities	53,145us-gaap_OtherLiabilities
Note
Accounts payable and accrued expenses
Interest payable	$ 34,617	$ 63,919

Represents the accumulated amortization of intangible liabilities below-market leases.

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Represents a liability associated with the acquisition of an off-market lease at below market lease at the date of acquisition.

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Amount after amortization of liabilities, lacking physical substance with a finite life during the reporting period.

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Amount of preferred units issued upon business acquisition.

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Sum of the carrying values as of the balance sheet date of obligations incurred through that date, including liabilities incurred and payable to vendors for goods and services received, taxes, interest, rent and utilities, compensation costs, payroll taxes and fringe benefits (other than pension and postretirement obligations), contractual rights and obligations, and statutory obligations.

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Carrying value as of the balance sheet date of obligations incurred and payable for real and property taxes.

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Amount at the balance sheet date that has been received by the entity that represents rents paid in advance.

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Carrying value as of the balance sheet date of obligations incurred and payable for the acquisition of merchandise, materials, supplies and services pertaining to construction projects such as a housing development or factory expansion not classified as trade payables.

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Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments.

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Amount of interest payable on debt, including, but not limited to, trade payables.

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Carrying value as of the balance sheet date of obligations, including trade payables, incurred through that date and due within one year (or in the operating cycle if longer) arising from transactions not otherwise specified in the taxonomy.

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The aggregate carrying amount, as of the balance sheet date, of liabilities not separately disclosed in the balance sheet.

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This element represents money paid in advance to protect the provider of a product or service, such as a lessor, against damage or nonpayment by the buyer or tenant (lessee) during the term of the agreement. Such damages may include physical damage to the property, theft of property, and other contractual breaches. Security deposits held may be interest or noninterest bearing.

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