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Significant Accounting Policies (Policies) | 12 Months Ended
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Dec. 31, 2017
Accounting Policies [Abstract] |
Basis of Accounting, Policy [Policy Text Block] | Basis of Presentation The accompanying Consolidated Financial Statements include the accounts of the Company . The Company’s subsidiaries include subsidiaries which are wholly-owned or which the Company has a controlling interest, including where the Company has been determined to be a primary beneficiary of a variable interest entity (“VIE”) in accordance with the Consolidation guidance of the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”). All inter-company balances and transactions have been eliminated in consolidation.
Use of Estimates, Policy [Policy Text Block] | Use of Estimates GAAP requires the Company's management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities and the reported amounts of revenues and expenses during a reporting period. The most significant assumptions and estimates relate to the valuation of real estate and related intangible assets and liabilities, equity method investments, other investments, including the assessment of impairments, as well as, depreciable lives, revenue recognition, the collectability of trade accounts receivable, realizability of deferred tax assets and the assessment of uncertain tax positions. Application of these assumptions requires the exercise of judgment as to future uncertainties, and, as a result, actual results could differ from these estimates.
Subsequent Events, Policy [Policy Text Block] | Subsequent Events The Company has evaluated subsequent events and transactions for potential recognition or disclosure in its consolidated financial statements (see Footnotes 8 and 16 of the Notes to Consolidated Financial Statements).
Real Estate, Policy [Policy Text Block] | Real Estate Real estate assets are stated at cost, less accumulated depreciation and amortization. Upon acquisition of real estate operating properties, the Company estimates the fair value of acquired tangible assets (consisting of land, building, building improvements and tenant improvements) and identified intangible assets and liabilities (consisting of above -market and below-market leases, in-place leases and tenant relationships, where applicable), assumed debt and redeemable units issued at the date of acquisition, based on evaluation of information and estimates available at that date. Fair value is determined based on a market approach, which contemplates the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Effective January 1, 2017, the Company early adopted Accounting Standard Update (“ASU”) 2017 - 01, Business Combinations (Topic 805 ): Clarifying the Definition of a Business, including its interim periods within the year, and applied the guidance to its asset acquisitions of operating properties, including the capitalization of acquisition costs, which was previously expensed prior to the adoption of this standard. In allocating the purchase price to identified intangible assets and liabilities of an acquired property, the value of above-market and below-market leases is estimated based on the present value of the difference between the contractual amounts, including fixed rate below-market lease renewal options, to be paid pursuant to the leases and management’s estimate of the market lease rates and other lease provisions (i.e., expense recapture, base rental changes, etc.) measured over a period equal to the estimated remaining term of the lease. The capitalized above-market or below-market intangible is amortized to rental income over the estimated remaining term of the respective leases, which includes the expected renewal option period for below-market leases. Mortgage debt discounts or premiums are amortized into interest expense over the remaining term of the related debt instrument. In determining the value of in-place leases, management considers current market conditions and costs to execute similar leases in arriving at an estimate of the carrying costs during the expected lease-up period from vacant to existing occupancy. In estimating carrying costs, management includes real estate taxes, insurance, other operating expenses, estimates of lost rental revenue during the expected lease-up periods and costs to execute similar leases including leasing commissions, legal and other related costs based on current market demand. The value assigned to in-place leases and tenant relationships is amortized over the estimated remaining term of the leases. If a lease were to be terminated prior to its scheduled expiration, all unamortized costs relating to that lease would be written off. Depreciation and amortization are provided on the straight-line method over the estimated useful lives of the assets, as follows:
Buildings and building improvements (in years) |  | 15 | to | 50
Fixtures, leasehold and tenant improvements (including certain identified intangible assets) |  | Terms of leases or useful lives, whichever is shorter
The Company periodically assesses the useful lives of its depreciable real estate assets , including those expected to be redeveloped in future periods, and accounts for any revisions prospectively. Expenditures for maintenance, repairs and demolition costs are charged to operations as incurred. Significant renovations and replacements, which improve or extend the life of the asset, are capitalized. The useful lives of amortizable intangible assets are evaluated each reporting period with any changes in estimated useful lives being accounted for over the revised remaining useful life. When a real estate asset is identified by management as held-for-sale, the Company ceases depreciation of the asset and estimates the fair value. If the fair value of the asset is less than the net book value of the asset, an adjustment to the carrying value would be recorded to reflect the estimated fair value of the property, less estimated costs of sale and the asset is classified as other assets. On a continuous basis, management assesses whether there are any indicators, including property operating performance , changes in anticipated holding period and general market conditions, that the value of the real estate properties (including any related amortizable intangible assets or liabilities) may be impaired. A property value is considered impaired only if management’s estimate of current and projected operating cash flows (undiscounted and unleveraged) of the property over its remaining hold period is less than the net carrying value of the property. Such cash flow projections consider factors such as expected future operating income, trends and prospects, as well as the effects of demand, competition and other factors. To the extent impairment has occurred, the carrying value of the property would be adjusted to an amount to reflect the estimated fair value of the property.
Real Estate Held for Development and Sale, Policy [Policy Text Block] | Real Estate Under Development Real estate under development represents the development of open-air shopping center projects, which may include residential and mixed-use components, that the Company plans to hold as long-term investments. These properties are carried at cost. The cost of land and buildings under development includes specifically identifiable costs. Capitalized costs include pre-construction costs essential to the development of the property, development costs, construction costs, interest costs, real estate taxes, insurance, legal costs, salaries and related costs of personnel directly involved and other costs incurred during the period of development. The Company ceases cost capitalization when the property is held available for occupancy and placed into service. This usually occurs upon substantial completion of all costs necessary to bring the property to the condition needed for its intended use, but no later than one year from the completion of major construction activity. However, the Company may continue to capitalize costs even though a project is substantially completed if construction is still ongoing at the site. If, in management’s opinion, the current and projected undiscounted cash flows of these assets to be held as long-term investments is less than the net carrying value plus estimated costs to complete the development, the carrying value would be adjusted to an amount that reflects the estimated fair value of the property.
Equity and Cost Method Investments, Policy [Policy Text Block] | Investments in Unconsolidated Joint Ventures The Company accounts for its investments in unconsolidated joint ventures under the equity method of accounting as the Company exercises significant influence, but does not control these entities. These investments are recorded initially at cost and subsequently adjusted for cash contributions , distributions and our share of earnings and losses. Earnings or losses for each investment are recognized in accordance with each respective investment agreement and where applicable, based upon an allocation of the investment’s net assets at book value as if the investment was hypothetically liquidated at the end of each reporting period. The Company ’s joint ventures and other real estate investments primarily consist of co-investments with institutional and other joint venture partners in open-air shopping center properties, consistent with its core business. These joint ventures typically obtain non-recourse third -party financing on their property investments, thus contractually limiting the Company’s exposure to losses primarily to the amount of its equity investment; and due to the lender’s exposure to losses, a lender typically will require a minimum level of equity in order to mitigate its risk. The Company, on a limited selective basis, has obtained unsecured financing for certain joint ventures. These unsecured financings may be guaranteed by the Company with guarantees from the joint venture partners for their proportionate amounts of any guaranty payment the Company is obligated to make. As of December 31, 2017, the Company did not guaranty any unsecured joint venture debt. To recognize the character of distributions from equity investees within its consolidated statements of cash flows, all distributions received are presumed to be returns on investment and classified as cash inflows from operating activities unless the Company’s cumulative distributions received less distributions received in prior periods that were determined to be returns of investment exceed its cumulative equity in earnings recognized by the investor (as adjusted for amortization of basis differences). When such an excess occurs, the current-period distribution up to this excess is considered a return of investment and classified as cash inflows from investing. On a continuous basis, management assesses whether there are any indicators, including the underlying investment property operating performance and general market conditions, that the value of the Company ’s investments in unconsolidated joint ventures may be impaired. An investment’s value is impaired only if management’s estimate of the fair value of the investment is less than the carrying value of the investment and such difference is deemed to be other-than-temporary. To the extent impairment has occurred, the loss shall be measured as the excess of the carrying amount of the investment over the estimated fair value of the investment. The Company ’s estimated fair values are based upon a discounted cash flow model for each joint venture that includes all estimated cash inflows and outflows over a specified holding period. Capitalization rates, discount rates and credit spreads utilized in these models are based upon rates that the Company believes to be within a reasonable range of current market rates.
Investment, Policy [Policy Text Block] | Other Real Estate Investments Other real estate investments primarily consist of preferred equity investments for which the Company provides capital to owners and developers of real estate. The Company typically accounts for its preferred equity investments on the equity method of accounting, whereby earnings for each investment are recognized in accordance with each respective investment agreement and based upon an allocation of the investment’s net assets at book value as if the investment was hypothetically liquidated at the end of each reporting period. On a continuous basis, management assesses whether there are any indicators, including the underlying investment property operating performance and general market conditions, that the value of the Company ’s Other real estate investments may be impaired. An investment’s value is impaired only if management’s estimate of the fair value of the investment is less than the carrying value of the investment and such difference is deemed to be other-than-temporary. To the extent impairment has occurred, the loss shall be measured as the excess of the carrying amount of the investment over the estimated fair value of the investment. The Company ’s estimated fair values are based upon a discounted cash flow model for each investment that includes all estimated cash inflows and outflows over a specified holding period and, where applicable, any estimated debt premiums. Capitalization rates, discount rates and credit spreads utilized in these models are based upon rates that the Company believes to be within a reasonable range of current market rates.
Finance, Loans and Leases Receivable, Policy [Policy Text Block] | Mortgages and Other Financing Receivables Mortgages and other financing receivables consist of loans acquired and loans originated by the Company. Borrowers of these loans are primarily experienced owners, operators or developers of commercial real estate. The Company ’s loans are primarily mortgage loans that are collateralized by real estate. Mortgages and other financing receivables are recorded at stated principal amounts, net of any discount or premium or deferred loan origination costs or fees. The related discounts or premiums on mortgages and other loans purchased are amortized or accreted over the life of the related loan receivable. The Company defers certain loan origination and commitment fees, net of certain origination costs and amortizes them as an adjustment of the loan’s yield over the term of the related loan. On a quarterly basis, the Company reviews credit quality indicators such as (i) payment status to identify performing versus non-performing loans, (ii) changes affecting the underlying real estate collateral and (iii) national and regional economic factors. Interest income on performing loans is accrued as earned. A non-performing loan is placed on non-accrual status when it is probable that the borrower may be unable to meet interest payments as they become due. Generally, loans 90 days or more past due are placed on non-accrual status unless there is sufficient collateral to assure collectability of principal and interest. Upon the designation of non-accrual status, all unpaid accrued interest is reserved and charged against current income. Interest income on non-performing loans is generally recognized on a cash basis. Recognition of interest income on non-performing loans on an accrual basis is resumed when it is probable that the Company will be able to collect amounts due according to the contractual terms. The Company has determined that it has one portfolio segment, primarily represented by loans collateralized by real estate, whereby it determines, as needed, reserves for loan losses on an asset-specific basis. The reserve for loan losses reflects management's estimate of loan losses as of the balance sheet date. The reserve is increased through loan loss expense and is decreased by charge-offs when losses are confirmed through the receipt of assets such as cash or via ownership control of the underlying collateral in full satisfaction of the loan upon foreclosure or when significant collection efforts have ceased. The Company considers a loan to be impaired when, based upon current information and events, it is probable that the Company will be unable to collect all amounts due under the existing contractual terms. A reserve allowance is established for an impaired loan when the estimated fair value of the underlying collateral (for collateralized loans) or the present value of expected future cash flows is lower than the carrying value of the loan. An internal valuation is performed generally using the income approach to estimate the fair value of the collateral at the time a loan is determined to be impaired. The model is updated if circumstances indicate a significant change in value has occurred. The Company does not provide for an additional allowance for loan losses based on the grouping of loans as the Company believes the characteristics of the loans are not sufficiently similar to allow an evaluation of these loans as a group for a possible loan loss allowance. As such, all of the Company ’s loans are evaluated individually for impairment purposes.
Cash and Cash Equivalents, Policy [Policy Text Block] | Cash and Cash Equivalents Cash and cash equivalents include demand deposits in banks, commercial paper and certificates of deposit with original maturities of three months or less. Cash and cash equivalent balances may, at a limited number of banks and financial institutions, exceed insurable amounts. The Company believes it mitigates risk by investing in or through major financial institutions and primarily in funds that are currently U.S. federal government insured up to applicable account limits. Recoverability of investments is dependent upon the performance of the issuers.
Marketable Securities, Policy [Policy Text Block] | Marketable Securities The Company classifies its marketable equity securities as available-for-sale in accordance with the FASB ’s Investments-Debt and Equity Securities guidance. These securities are carried at fair market value with unrealized gains and losses reported in stockholders’ equity as a component of Accumulated other comprehensive income ("AOCI"). Effective January 1, 2018, in accordance with the adoption of ASU 2016 - 01, Financial Instruments —Overall (Subtopic 825 - 10 ): Recognition and Measurement of Financial Assets and Financial Liabilities, the Company will recognize changes in fair value of equity investments with readily determinable fair values in net income. Gains or losses on securities sold are based on the specific identification method and are recognized in Interest, dividends and other investment income on the Company’s Consolidated Statements of Income. All debt securities are generally classified as held-to-maturity because the Company has the positive intent and ability to hold the securities to maturity . It is more likely than not that the Company will not be required to sell the debt security before its anticipated recovery and the Company expects to recover the security’s entire amortized cost basis even if the entity does not intend to sell. Held-to-maturity securities are stated at amortized cost, adjusted for amortization of premiums and accretion of discounts to maturity. Debt securities which contain conversion features generally are classified as available-for-sale. On a continuous basis, management assesses whether there are any indicators that the value of the Company ’s marketable securities may be impaired, which includes reviewing the underlying cause of any decline in value and the estimated recovery period, as well as the severity and duration of the decline. In the Company’s evaluation, the Company considers its ability and intent to hold these investments for a reasonable period of time sufficient for the Company to recover its cost basis. A marketable security is impaired if the fair value of the security is less than the carrying value of the security and such difference is deemed to be other-than-temporary. To the extent impairment has occurred, the loss shall be measured as the excess of the carrying amount of the security over the estimated fair value in the security.
Deferred Charges, Policy [Policy Text Block] | Deferred Leasing Costs Costs incurred in obtaining tenant leases, included in deferred charges and prepaid expenses in the accompanying Consolidated Balance Sheets, are amortized on a straight-line basis, over the terms of the related leases, as applicable. Such capitalized costs include salaries, lease incentives and related costs of personnel directly involved in successful leasing efforts. Deferred leasing costs are classified as operating activities on the Company’s Consolidated Statements of Cash Flows. Software Development Costs Expenditures for major software purchases and software developed for internal use are capitalized and amortized on a straight-line basis generally over a three to five -year period. The Company’s policy provides for the capitalization of external direct costs of materials and services associated with developing or obtaining internal use computer software. In addition, the Company also capitalizes certain payroll and payroll-related costs for employees who are directly associated with internal use computer software projects. The amount of payroll costs that can be capitalized with respect to these employees is limited to the time directly spent on such projects. Costs associated with preliminary project stage activities, training, maintenance and all other post-implementation stage activities are expensed as incurred. As of December 31, 2017 and 2016, the Company had unamortized software development costs of $6.2 million and $10.2 million, respectively, which is included in Other assets on the Company’s Consolidated Balance Sheets. The Company expensed $4.6 million, $8.0 million and $10.7 million in amortization of software development costs during the years ended December 31, 2017, 2016 and 2015, respectively. Deferred Financing Costs Costs incurred in obtaining long-term financing, included in Notes payable, net and Mortgages payable, net in the accompanying Consolidated Balance Sheets, are amortized on a straight-line basis, which approximates the effective interest method, over the terms of the related debt agreements, as applicable.
Revenue Recognition, Policy [Policy Text Block] | Revenue , Gain Recognition and Accounts Receivable Base rental revenues from rental propert ies are recognized on a straight-line basis over the terms of the related leases. Certain of these leases also provide for percentage rents based upon the level of sales achieved by the lessee. These percentage rents are recognized once the required sales level is achieved. Rental income may also include payments received in connection with lease termination agreements. In addition, leases typically provide for reimbursement to the Company of common area maintenance costs, real estate taxes and other operating expenses. Operating expense reimbursements are recognized as earned. Management and other fee income consists of property management fees, leasing fees, property acquisition and disposition fees, development fees and asset management fees. These fees arise from contractual agreements with third parties or with entities in which the Company has a noncontrolling interest. Management and other fee income, including acquisition and disposition fees, are recognized as earned under the respective agreements. Management and other fee income related to partially owned entities are recognized to the extent attributable to the unaffiliated interest. Gains and losses from the sale of depreciated operating property and real estate under development projects are recognized using the full accrual method in accordance with the FASB’s real estate sales guidance, provided that various criteria relating to the terms of sale and subsequent involvement by the Company with the properties are met. Gains and losses on transfers of operating properties result from the sale of a partial interest in properties to unconsolidated joint ventures and are recognized using the partial sale provisions of the FASB ’s real estate sales guidance. The Company makes estimates of the uncollectable accounts receivables related to base rents, straight-line rent, expense reimbursements and other revenues. The Company analyzes accounts receivable and historical bad debt levels, customer credit worthiness and current economic trends when evaluating the adequacy of the allowance for doubtful accounts. In addition, tenants in bankruptcy are analyzed and estimates are made in connection with the expected recovery of pre-petition and post-petition claims. The Company’s reported net earnings are directly affected by management’s estimate of the collectability of accounts receivable. Accounts and notes receivable in the accompanying Consolidated Balance Sheets are net of estimated unrecoverable amounts of $9.2 million and $12.3 million of billed accounts receivable at December 31, 2017 and 2016, respectively. Additionally, Accounts and notes receivable in the accompanying Consolidated Balance Sheets are net of estimated unrecoverable amounts of $7.9 million and $11.9 million of straight-line rent receivable at December 31, 2017 and 2016, respectively.
Income Tax, Policy [Policy Text Block] | Income Taxes The Company elected status as a REIT for federal income tax purposes beginning in its taxable year January 1, 1992 and operates in a manner that enables the Company to qualify and maintain its status as a REIT . Accordingly, the Company generally will not be subject to federal income tax, provided that distributions to its stockholders equal at least the amount of its REIT taxable income as defined under Section 856 through 860 of the Code. Most states, where the Company holds investments in real estate, conform to the federal rules recognizing REITs. Additionally, in connection with the Tax Relief Extension Act of 1999 (the "RMA"), which became effective January 1, 2001, the Company is permitted to participate in activities which it was precluded from previously in order to maintain its qualification as a REIT, so long as these activities are conducted in entities which elect to be treated as taxable REIT subsidiaries (“TRS”) under the Code, subject to certain limitations. Certain subsidiaries of the Company have made a joint election with the Company to be treated as TRSs. A TRS is subject to federal and state income taxes on its income, and the Company includes a provision for taxes in its consolidated financial statements. As such, the Company, through its wholly-owned TRS, has been engaged in various retail real estate related opportunities including retail real estate management and disposition services which primarily focuses on leasing and disposition strategies of retail real estate controlled by both healthy and distressed and/or bankrupt retailers. The Company may consider other investments through its TRS should suitable opportunities arise. The Company is subject to and also includes in its tax provision non-U.S. income taxes on certain investments located in jurisdictions outside the U.S. These investments are held by the Company at the REIT level and not in the Company’s taxable REIT subsidiaries. Accordingly, the Company does not expect a U.S. income tax impact associated with the repatriation of undistributed earnings from the Company’s foreign subsidiaries. Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carry-forwards. Deferred tax assets and liabilities are measured using enacted tax rates in effect for the year in which those temporary differences are expected to be recovered or settled. The Company provides a valuation allowance for deferred tax assets for which it does not consider realization of such assets to be more likely than not. The Company reviews the need to establish a valuation allowance against deferred tax assets on a quarterly basis. The review includes an analysis of various factors, such as future reversals of existing taxable temporary differences, the capacity for the carryback or carryforward of any losses, the expected occurrence of future income or loss and available tax planning strategies. The Company applies the FASB’s guidance relating to uncertainty in income taxes recognized in a Company’s financial statements. Under this guidance the Company may recognize the tax benefit from an uncertain tax position only if it is more likely than not that the tax position will be sustained on examination by taxing authorities, based on the technical merits of the position. The tax benefits recognized in the financial statements from such a position are measured based on the largest benefit that has a greater than fifty percent likelihood of being realized upon ultimate settlement. The guidance on accounting for uncertainty in income taxes also provides guidance on de-recognition, classification, interest and penalties on income taxes, and accounting in interim periods.
Foreign Currency Transactions and Translations Policy [Policy Text Block] | Foreign Currency Translation and Transactions Assets and liabilities of the Company ’s foreign operations, where it has been determined that the local currency is the functional currency, are translated using year-end exchange rates, and revenues and expenses are translated using exchange rates as determined throughout the year. Gains or losses resulting from translation are included in AOCI, as a separate component of the Company’s stockholders’ equity. Gains or losses resulting from foreign currency transactions are translated to local currency at the rates of exchange prevailing at the dates of the transactions. The effect of the transaction’s gain or loss is included in the caption Other (expense)/income, net in the Consolidated Statements of Income. The Company is required to release cumulative translation adjustment (“CTA”) balances into earnings when the Company has substantially liquidated its investment in a foreign entity. As of December 31, 2017, the Company has exited South America and substantially liquidated its investments in Mexico and Canada.
Derivatives, Policy [Policy Text Block] | Derivative/Financial Instruments The Company is exposed to certain risk s arising from both its business operations and economic conditions. The Company principally manages its exposures to a wide variety of business and operational risk through management of its core business activities. The Company manages economic risks, including interest rate, liquidity, and credit risk primarily by managing the amount, sources, and duration of its debt funding and the use of derivative financial instruments. Specifically, the Company may use derivatives to manage exposures that arise from changes in interest rates, foreign currency exchange rate fluctuations and market value fluctuations of equity securities. The Company limits these risks by following established risk management policies and procedures including the use of derivatives. The Company measures its derivative instruments at fair value and records them in the Consolidated Balance Sheet as an asset or liability, depending on the Company ’s rights or obligations under the applicable derivative contract. The accounting for changes in the fair value of the derivatives depends on the intended use of the derivative, whether the Company has elected to designate a derivative in a hedging relationship and apply hedge accounting and whether the hedging relationship has satisfied the criteria necessary to apply hedge accounting. Derivatives designated and qualifying as a hedge of the exposure to changes in the fair value of an asset, liability, or firm commitment attributable to a particular risk, such as interest rate risk, are considered fair value hedges. Derivatives designated and qualifying as a hedge of the exposure to variability in expected future cash flows, or other types of forecasted transactions, are considered cash flow hedges. Derivatives may also be designated as hedges of the foreign currency exposure of a net investment in a foreign operation. Hedge accounting generally provides for the matching of the timing of gain or loss recognition on the hedging instrument with the recognition of the changes in the fair value of the hedged asset or liability that are attributable to the hedged risk in a fair value hedge or the earnings effect of the hedged forecasted transactions in a cash flow hedge. The Company may enter into derivative contracts that are intended to economically hedge certain of its risk, even though hedge accounting does not apply or the Company elects not to apply hedge accounting under the Derivatives and Hedging guidance issued by the FASB. The effective portion of the changes in fair value of derivatives designated and that qualify as cash flow hedges is recorded in AOCI and is subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. Any ineffective portion of the change in fair value of the derivatives is recognized directly in earnings. During 2017, 2016 and 2015, the Company had no hedge ineffectiveness.
Consolidation, Subsidiaries or Other Investments, Consolidated Entities, Policy [Policy Text Block] | Noncontrolling Interests The Company accounts for noncontrolling interests in accordance with the Consolidation guidance and the Distinguishing Liabilities from Equity guidance issued by the FASB. Noncontrolling interests represent the portion of equity that the Company does not own in those entities it consolidates. The Company identifies its noncontrolling interests separately within the equity section on the Company ’s Consolidated Balance Sheets. The amounts of consolidated net earnings attributable to the Company and to the noncontrolling interests are presented separately on the Company’s Consolidated Statements of Income. Noncontrolling interests also includes amounts related to partnership units issued by consolidated subsidiaries of the Company in connection with certain property acquisitions. These units have a stated redemption value or a defined redemption amount based upon the trading price of the Company ’s common stock and provides the unit holders various rates of return during the holding period. The unit holders generally have the right to redeem their units for cash at any time after one year from issuance. For convertible units, the Company typically has the option to settle redemption amounts in cash or common stock. The Company evaluates the terms of the partnership units issued in accordance with the FASB ’s Distinguishing Liabilities from Equity guidance. Units which embody a conditional obligation requiring the Company to redeem the units for cash after a specified or determinable date (or dates) or upon the occurrence of an event that is not solely within the control of the issuer are determined to be contingently redeemable under this guidance and are included as Redeemable noncontrolling interest and classified within the mezzanine section between Total liabilities and Stockholders’ equity on the Company’s Consolidated Balance Sheets. Convertible units for which the Company has the option to settle redemption amounts in cash or common stock are included in the caption Noncontrolling interest within the equity section on the Company’s Consolidated Balance Sheets.
Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] | Stock Compensation The Company maintains two equity participation plans, the Second Amended and Restated 1998 Equity Participation Plan (the “Prior Plan”) and the 2010 Equity Participation Plan (the “2010 Plan”) (collectively, the “Plans”). The Prior Plan provides for a maximum of 47,000,000 shares of the Company ’s common stock to be issued for qualified and non-qualified stock options and restricted stock grants. Effective May 1, 2012, the 2010 Plan provides for a maximum of 10,000,000 shares of the Company’s common stock to be issued for qualified and non-qualified stock options and other awards, plus the number of shares of common stock which are or become available for issuance under the Prior Plan and which are not thereafter issued under the Prior Plan, subject to certain conditions. Unless otherwise determined by the Board of Directors at its sole discretion, stock options granted under the Plans generally vest ratably over a range of three to five years, expire ten years from the date of grant and are exercisable at the market price on the date of grant. Restricted stock grants generally vest (i) 100% on the fourth or fifth anniversary of the grant, (ii) ratably over three , four and five years or (iii) over ten years at 20% per year commencing after the fifth year. Performance share awards, which vest over a period of one to three years, may provide a right to receive shares of the Company’s common stock or restricted stock based on the Company’s performance relative to its peers, as defined, or based on other performance criteria as determined by the Board of Directors. In addition, the Plans provide for the granting of certain stock options and restricted stock to each of the Company’s non-employee directors (the “Independent Directors”) and permit such Independent Directors to elect to receive deferred stock awards in lieu of directors’ fees. The Company accounts for equity awards in accordance with the FASB’s Stock Compensation guidance which requires that all share based payments to employees, be recognized in the Statement of Income over the service period based on their fair values. Fair value is determined, depending on the type of award, using either the Black-Scholes option pricing formula or the Monte Carlo method, both of which are intended to estimate the fair value of the awards at the grant date (see Footnote 20 of the Notes to Consolidated Financial Statements for additional disclosure on the assumptions and methodology).
New Accounting Pronouncements, Policy [Policy Text Block] | New Accounting Pronouncements The following table represents ASUs to the FASB ’s Accounting Standards Codification (“ASC”) that, as of the year ended December 31, 2017, are not yet effective for the Company and for which the Company has not elected early adoption, where permitted:
| ASU |  |  | Description |  | Effective Date |  |  | Effect on the financial statements or other significant matters |
| ASU 2017 - 09, Compensation – Stock Compensation (Topic 718 ): Scope of Modification Accounting |  |  | The amendment provides guidance about which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting in Topic 718. Under the new guidance, modification accounting is required only if the fair value, the vesting conditions, or the classification of the award (as equity or liability) changes as a result of the change in terms or conditions. The new guidance will be applied prospectively to awards modified on or after the adoption date. |  | January 1, 2018; Early adoption permitted |  |  | The adoption is not expected to have a material effect on the Company ’s financial position and/or results of operations. |
| ASU 2017 - 05, Other Income – Gains and Losses from the Derecognition of Nonfinancial Assets (“Subtopic 610 - 20” ): Clarifying the Scope of Asset Derecognition Guidance and Accounting for Partial Sales of Nonfinancial Assets |  |  | The amendment clarifies that a financial asset is within the scope of Subtopic 610 - 20 if it meets the definition of an in substance nonfinancial asset and defines the term in substance nonfinancial asset. ASU 2017 - 05 also clarifies that nonfinancial assets within the scope of Subtopic 610 - 20 may include nonfinancial assets transferred within a legal entity to a counterparty. Subtopic 610 - 20, which was issued in May 2014 as part of ASU 2014 - 09, discussed below, provides guidance for recognizing gains and losses from the transfer of nonfinancial assets in contracts with noncustomers. An entity is required to apply the amendments in ASU 2017 - 05 at the same time it applies the amendments in ASU 2014 - 09 discussed below. An entity may elect to apply the amendments in ASU 2017 - 05 either retrospectively to each period presented in the financial statements in accordance with the guidance on accounting changes in ASC Topic 250, Accounting Changes and Error Corrections, paragraphs 10 - 45 - 5 through 10 - 45 - 10 (i.e. the retrospective approach) or retrospectively with a cumulative-effect adjustment to retained earnings as of the beginning of the fiscal year of adoption (i.e. the modified retrospective approach). An entity may elect to apply all of the amendments in ASU 2017 - 05 and ASU 2014 - 09 using the same transition method, or alternatively may elect to use different transition methods. |  | January 1, 2018; Early adoption is permitted if adopted with ASU 2014 - 09 |  |  | The Company will adopt the provisions of Subtopic 610 - 20 in the first quarter of fiscal 2018, using the modified retrospective approach. Upon adoption, the Company will appropriately apply the guidance to prospective disposals of nonfinancial assets within the scope of Subtopic 610 - 20. |
| ASU 2016 - 13, Financial Instruments – Credit Losses (Topic 326 ): Measurement of Credit Losses on Financial Instruments |  |  | The new guidance introduces a new model for estimating credit losses for certain types of financial instruments, including loans receivable, held-to-maturity debt securities, and net investments in direct financing leases, amongst other financial instruments. ASU 2016 - 13 also modifies the impairment model for available-for-sale debt securities and expands the disclosure requirements regarding an entity ’s assumptions, models, and methods for estimating the allowance for losses. |  | January 1, 2020; Early adoption permitted |  |  | The Company is still assessing the impact on its financial position and/or results of operations. |
| ASU 2014 - 09, Revenue from Contracts with Customers (Topic 606 ) ASU 2015 - 14, Revenue from Contracts with Customers (Topic 606 ): Deferral of the Effective Date ASU 2016 - 08, Revenue from Contracts with Customers (Topic 606 ): Principal versus Agent Considerations ASU 2016 - 10, Revenue from Contracts with Customers (Topic 606 ): Identifying performance obligations and licensing ASU 2016 - 12, Revenue from Contracts with Customers (Topic 606 ): Narrow-scope improvements and practical expedients |  |  | ASU 2014 - 09 is a comprehensive new revenue recognition model requiring a company to recognize revenue to depict the transfer of goods or services to a customer at an amount reflecting the consideration it expects to receive in exchange for those goods or services. In adopting ASU 2014 - 09, companies may use either a full retrospective or a modified retrospective approach. ASU 2014 - 09 was anticipated to be effective for the first interim period within annual reporting periods beginning after December 15, 2016, and early adoption was not permitted. In August 2015, the FASB issued ASU 2015 - 14, which delayed the effective date of ASU 2014 - 09 by one year making it effective for the first interim period within annual reporting periods beginning after December 15, 2017. Subsequently, in March 2016, the FASB issued ASU 2016 - 08, which further clarifies the implementation guidance on principal versus agent considerations, and in April 2016, the FASB issued ASU 2016 - 10, an update on identifying performance obligations and accounting for licenses of intellectual property. Additionally, in May 2016, the FASB issued ASU 2016 - 12, which includes amendments for enhanced clarification of the guidance. Early adoption is permitted as of the original effective date. |  | January 1, 2018; Early adoption permitted as of original effective date, which was January 1, 2017 |  |  | The Company ’s revenue-producing contracts are primarily leases that are not within the scope of this standard, except for the lease component relating to common area maintenance (“CAM”) reimbursement revenue, which will be within the scope of this standard upon the effective date of ASU 2016 - 02, Leases (Topic 842 ) discussed below. The revenues which will be within the scope of this standard include other ancillary income earned through the Company ’s operating properties as well as fees for services performed at various unconsolidated joint ventures which the Company manages. These fees primarily include property and asset management fees, leasing fees, development fees and property acquisition/disposition fees. These revenues represented approximately 3% of the Company’s consolidated revenue for both the years ended December 31, 2017 and 2016. The Company believes the timing of recognition and amount of these revenues will be generally consistent with the current recognition and measurement. The Company plans to adopt this standard effective January 1, 2018, using the modified retrospective approach, which requires a cumulative effect adjustment, if any, as of the date of adoption. The Company has determined that the adoption of this standard will not require any material adjustments to the consolidated financial statements but will result in additional disclosures related to disaggregation of revenue streams beginning in the first quarter of 2018. |
| ASU 2016 - 02, Leases (Topic 842 ) |  |  | This ASU sets out the principles for the recognition, measurement, presentation and disclosure of leases for both parties to a contract (i.e. lessees and lessors). The new standard requires lessees to apply a dual approach, classifying leases as either finance or operating leases based on the principle of whether or not the lease is effectively a financed purchase by the lessee. This classification will determine whether lease expense is recognized based on an effective interest method or on a straight-line basis over the term of the lease. A lessee is also required to record a right-of-use asset and a lease liability for all leases with a term of greater than 12 months regardless of their classification. Leases with a term of 12 months or less will be accounted for similar to existing guidance for operating leases today. The new standard requires lessors to account for leases using an approach that is substantially equivalent to existing guidance for sales-type leases, direct financing leases and operating leases. ASU 2016 - 02 supersedes the previous leases standard, Leases (Topic 840 ). |  | January 1, 2019; Early adoption permitted |  |  | The Company continues to evaluate the effect the adoption will have on the Company ’s financial position and/or results of operations. However, the Company currently believes that the adoption will not have a material impact for operating leases where it is a lessor and will continue to record revenues from rental properties for its operating leases on a straight-line basis. However, for leases where the Company is a lessee, primarily for the Company’s ground leases and administrative office leases, the Company will be required to record a lease liability and a right of use asset on its Consolidated Balance Sheets at fair value upon adoption. In addition, direct internal leasing costs will continue to be capitalized, however, indirect internal leasing costs previously capitalized will be expensed. Within the terms of the Company’s leases where the Company is the lessor, the Company is entitled to receive reimbursement amounts from tenants for operating expenses such as real estate taxes, insurance and other CAM. Upon adoption of this ASU, CAM reimbursement revenue will be accounted for in accordance with ASU 2016 - 12 Revenue from Contracts with Customers (Topic 606 ). The Company continues to evaluate the effect the adoption will have on this source of revenue. However, the Company currently does not believe the adoption will significantly affect the timing of the recognition of the Company’s CAM reimbursement revenue. |
| ASU 2016 - 01, Financial Instruments—Overall (Subtopic 825 - 10 ): Recognition and Measurement of Financial Assets and Financial Liabilities |  |  | The amendment addresses certain aspects of recognition, measurement, presentation and disclosure of financial instruments, including the following: (i) Requires equity investments (excluding those investments accounted for under the equity method of accounting or those that result in consolidation of the investee) with readily determinable fair values to be measured at fair value with the changes in fair value recognized in net income; however, an entity may choose to measure equity investments that do not have readily determinable fair values at cost minus impairment, if any, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer. (ii) Simplifies the impairment assessment of those equity investments without readily determinable fair values by requiring a qualitative assessment to identify impairment (iii) Eliminates the disclosure of the method(s) and significant assumptions used to estimate the fair value for financial instruments measured at amortized cost and changes the fair value calculation for those investments (iv) Changes the disclosure in other comprehensive income for financial liabilities that are measured at fair value in accordance with the fair value options for financial instruments (v) Clarifies that a deferred asset related to available-for-sale securities should be included in an entity's evaluation for a valuation allowance. |  | January 1, 201 8; Early adoption permitted for certain disclosure requirements |  |  | Currently, changes in fair value of these equity investments with readily determinable fair values are recognized in AOCI. This ASU states that these changes will be recognized in net income. The Company anticipates the implementation of this guidance will affect how changes in the fair value of available-for-sale marketable securities are presented in the Company’s consolidated financial statements. In addition, the Company will record a cumulative-effect adjustment to beginning retained earnings in the year of adoption (effective as of January 1, 2018) to reclassify unrealized gains and losses previously reported in AOCI for available-for-sale marketable securities. As of December 31, 2017, the Company had unrealized losses related to its available-for-sale marketable securities of $1.1 million. |
The following ASU s to the FASB’s ASC have been adopted by the Company during the year ended December 31, 2017 :
| ASU |  |  | Description |  |  | Adoption Date |  |  | Effect on the financial statements or other significant matters |
| ASU 2017 - 01, Business Combinations (Topic 805 ): Clarifying the Definition of a Business |  |  | The update clarifies the definition of a business with the objective of adding guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The definition of a business affects many areas of accounting including acquisitions, disposals, goodwill, and consolidation. |  |  | January 1, 2017; Elected early adoption |  |  | The Company ’s operating property acquisitions during 2017 qualified for asset acquisition treatment under ASC 360, Property, Plant, and Equipment, rather than business combination treatment under ASC 805 Business Combinations, and resulted in the capitalization of asset acquisition costs rather than directly expensing these costs. |
| ASU 2016 - 09, Compensation – Stock Compensation (Topic 718 ): Improvements to Employee Share-Based Payment Accounting |  |  | The update simplifies several aspects of accounting for employee share-based payment transactions for both public and nonpublic entities, including the accounting for income taxes, forfeitures, and statutory tax withholding requirements, as well as classification in the statement of cash flows. |  |  | January 1, 2017 |  |  | The adoption did not have a material effect on the Company ’s financial position and/or results of operations. |

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- Definition Disclosure of accounting policy for investments in debt and equity securities that have readily determinable fair values (marketable securities). At a minimum, the disclosure might address accounting policies for investments classified as trading, available for sale, or held to maturity and may include how the entity determines whether impairments of available for sale or held to maturity investments are other than temporary, how the fair values of the entity's securities are determined, and the entity's accounting treatment for transfers between investment categories. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(6)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(1)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.M) -URI http://asc.fasb.org/extlink&oid=65877573&loc=d3e87990-122713 Reference 4: 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(12)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section S50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6381980&loc=d3e87707-122711 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=75019621&loc=d3e62652-112803 Reference 8: 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(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(5)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact. + References No definition available. + Details
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- Definition Disclosure of accounting policy for real estate held for development or sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 970 -SubTopic 360 -Section 35 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6496927&loc=d3e30448-110314 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790 + Details
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- Definition Disclosure of accounting policy for entities that primarily develop and then sell real property at retail or otherwise. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 970 -SubTopic 10 -Section 05 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=77935101&loc=d3e24546-110282 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 20 -Section 15 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6450852&loc=d3e24871-108386 + Details
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- Definition Disclosure of accounting policy for revenue recognition. If the entity has different policies for different types of revenue transactions, the policy for each material type of transaction is generally disclosed. If a sales transaction has multiple element arrangements (for example, delivery of multiple products, services or the rights to use assets) the disclosure may indicate the accounting policy for each unit of accounting as well as how units of accounting are determined and valued. The disclosure may encompass important judgment as to appropriateness of principles related to recognition of revenue. The disclosure also may indicate the entity's treatment of any unearned or deferred revenue that arises from the transaction. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18823-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 13.B.Q1) -URI http://asc.fasb.org/extlink&oid=65893310&loc=d3e214044-122780 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18726-107790 + Details
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- Definition Disclosure of accounting policy for stock option and stock incentive plans. This disclosure may include (1) the types of stock option or incentive plans sponsored by the entity (2) the groups that participate in (or are covered by) each plan (3) significant plan provisions and (4) how stock compensation is measured, and the methodologies and significant assumptions used to determine that measurement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b),(f) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Disclosure of accounting policy for reporting subsequent events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790 + Details
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- Definition Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=84177426&loc=d3e6061-108592 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=84177426&loc=d3e6143-108592 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=84177426&loc=d3e6132-108592 + Details
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