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Note 8 - Investment and Advances in Real Estate Joint Ventures (Detail) | 1 Months Ended | 12 Months Ended |  |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  |  | 12 Months Ended |  |  |  |  | 12 Months Ended |  |  |  | 12 Months Ended |  |  | 12 Months Ended |  |  | 12 Months Ended |
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Oct. 31, 2012 USD ($) | Dec. 31, 2012 USD ($) | Dec. 31, 2011 USD ($) | Dec. 31, 2010 USD ($) | Dec. 31, 2012 KimPru and KimPru II [Member] | Dec. 31, 2011 KimPru and KimPru II [Member] | Dec. 31, 2011 KimPru [Member] Company's Share [Member] Potential Foreclosure [Member] USD ($) | Dec. 31, 2012 KimPru [Member] Company's Share [Member] Sold [Member] USD ($) | Dec. 31, 2010 KimPru [Member] Company's Share [Member] Sold [Member] USD ($) | Dec. 31, 2011 KimPru [Member] Company's Share [Member] USD ($) | Dec. 31, 2011 KimPru [Member] Potential Foreclosure [Member] USD ($) | Dec. 31, 2012 KimPru [Member] Sold [Member] USD ($) | Dec. 31, 2010 KimPru [Member] Sold [Member] USD ($) | Dec. 31, 2011 KimPru [Member] USD ($) | Dec. 31, 2012 KimPru [Member] | Dec. 31, 2012 Other Joint Venture Programs [Member] Operating Properties [Member] Additional 1 [Member] USD ($) | Dec. 31, 2012 Other Joint Venture Programs [Member] Operating Properties [Member] Company's Share [Member] USD ($) | Dec. 31, 2012 Other Joint Venture Programs [Member] Operating Properties [Member] USD ($) | Dec. 31, 2012 Other Joint Venture Programs [Member] Additional [Member] USD ($) | Dec. 31, 2011 Other Joint Venture Programs [Member] Additional [Member] USD ($) | Dec. 31, 2012 Other Joint Venture Programs [Member] Company's Share [Member] USD ($) | Dec. 31, 2012 Other Joint Venture Programs [Member] Sold [Member] | Dec. 31, 2012 Other Joint Venture Programs [Member] Initial [Member] USD ($) | Dec. 31, 2011 Other Joint Venture Programs [Member] Initial [Member] USD ($) | Dec. 31, 2012 Other Joint Venture Programs [Member] Sold [Member] | Dec. 31, 2012 Other Joint Venture Programs [Member] Pending Sale [Member] | Dec. 31, 2012 Other Joint Venture Programs [Member] USD ($) | Dec. 31, 2010 Other Joint Venture Programs [Member] USD ($) | Dec. 31, 2011 Other Joint Venture Programs [Member] USD ($) | Dec. 31, 2012 Other Institutional Programs [Member] Operating Properties [Member] Additional [Member] USD ($) | Dec. 31, 2012 Other Institutional Programs [Member] Operating Properties [Member] Sold [Member] | Dec. 31, 2012 Other Institutional Programs [Member] Operating Properties [Member] Initial [Member] USD ($) | Dec. 31, 2012 Other Institutional Programs [Member] Operating Properties [Member] | Dec. 31, 2012 Other Institutional Programs [Member] Company's Share [Member] USD ($) | Dec. 31, 2012 Other Institutional Programs [Member] Acquired [Member] | Dec. 31, 2012 Other Institutional Programs [Member] USD ($) | Dec. 31, 2011 Other Institutional Programs [Member] | Dec. 31, 2012 RioCan [Member] Sold [Member] | Dec. 31, 2012 RioCan [Member] Minimum [Member] | Dec. 31, 2012 RioCan [Member] USD ($) | Dec. 31, 2011 RioCan [Member] | Oct. 31, 2001 RioCan [Member] | Dec. 31, 2010 KimPru II [Member] Operating Properties [Member] Sold [Member] | Dec. 31, 2011 KimPru II [Member] Operating Properties [Member] Foreclosed On [Member] | Dec. 31, 2011 KimPru II [Member] Company's Share [Member] USD ($) | Dec. 31, 2010 KimPru II [Member] Company's Share [Member] USD ($) | Dec. 31, 2012 KimPru II [Member] USD ($) | Dec. 31, 2011 KimPru II [Member] USD ($) | Dec. 31, 2011 KIR [Member] Company's Share [Member] USD ($) | Dec. 31, 2012 KIR [Member] Company's Share [Member] USD ($) | Dec. 31, 2010 KIR [Member] Company's Share [Member] USD ($) | Dec. 31, 2011 KIR [Member] Assets Held-for-sale [Member] | Dec. 31, 2012 KIR [Member] Minimum [Member] | Dec. 31, 2010 KIR [Member] Operating Properties [Member] | Dec. 31, 2010 KIR [Member] Outparcel [Member] | Dec. 31, 2012 KIR [Member] USD ($) | Dec. 31, 2011 KIR [Member] USD ($) | Dec. 31, 2010 KIR [Member] USD ($) | Dec. 31, 2011 KUBS [Member] Company's Share [Member] Potential Foreclosure [Member] USD ($) | Dec. 31, 2012 KUBS [Member] Company's Share [Member] Sold [Member] USD ($) | Dec. 31, 2011 KUBS [Member] Company's Share [Member] Sold [Member] USD ($) | Dec. 31, 2011 KUBS [Member] Potential Foreclosure [Member] USD ($) | Dec. 31, 2012 KUBS [Member] Sold [Member] USD ($) | Dec. 31, 2011 KUBS [Member] Sold [Member] USD ($) | Dec. 31, 2012 KUBS [Member] | Dec. 31, 2011 KUBS [Member] | Dec. 31, 2012 BIG Shopping Centers [Member] Potential Foreclosure [Member] Company's Share [Member] USD ($) | Dec. 31, 2012 BIG Shopping Centers [Member] Potential Foreclosure [Member] USD ($) | Dec. 31, 2012 BIG Shopping Centers [Member] | Dec. 31, 2011 BIG Shopping Centers [Member] | Dec. 31, 2011 Canadian Hotel Portfolio [Member] USD ($) | Dec. 31, 2011 Canadian Hotel Portfolio [Member] CAD | Dec. 31, 2012 Operating Properties [Member]
Number of Joint Ventures |  |  |  |  | 4 |  |  |  |  |  |  |  |  |  |  | 3 |  |  |  |  |  |  | 2 |  |  |  |  | 3 |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |  |  | 3 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of Accounts |  |  |  |  | 4 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of Preferred Equity Investments |  | 3 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales of Real Estate | $ 735,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 55,500,000 |  |  | $ 62,000,000 |  |  |  | $ 118,000,000 |  |  |  |  |  |  |  | $ 127,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gains (Losses) on Sales of Investment Real Estate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 8,300,000 |  |  |  | 12,100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,100,000 |  | 2,600,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Cost of Acquired Entity, Purchase Price |  | 634,478,000 | 374,564,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 14,500,000 | 42,400,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 75,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (Loss) on Sale of Properties, before Applicable Income Taxes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (Loss) on Sale of Properties, Applicable Income Taxes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of Real Estate Properties |  | 28 |  |  | 61 | [1],[2] | 63 |  |  |  |  | 2 | 2 | 26 |  |  |  |  |  |  |  |  | 2 |  |  | 1 | 1 | 87 | [3],[4],[5],[6] |  | 92 |  | 2 |  | 4 |  | 4 | 58 | [2],[3],[4] | 67 | 1 |  | 45 | 45 |  | 4 | 1 |  |  |  |  |  |  |  | 1 |  | 1 | 1 | 58 | [2] | 59 |  |  |  |  |  | 2 | 1 | 40 | [2] | 42 |  |  | 22 | [2] | 23 |  |  | 24
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain |  | 15,555,000 | 569,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,000,000 |  |  |  |  |  |  |  |  |  | 14,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Distributions Received from Real Estate Partnerships |  | 187,856,000 | 63,529,000 | 85,205,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 18,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impairment of Real Estate |  |  |  |  |  |  |  | 6,000,000 | 800,000 | 14,800,000 |  | 53,600,000 | 6,500,000 | 161,700,000 |  |  |  |  |  |  |  | 6,400,000 |  |  |  |  |  | 12,800,000 |  | 7,000,000 |  |  |  |  |  | 800,000 |  | 6,500,000 |  |  |  |  |  |  |  |  |  | 1,000,000 | 3,400,000 | 7,300,000 | 25,600,000 | 2,100,000 |  | 3,000,000 |  |  |  |  |  |  | 4,600,000 | 6,700,000 | 800,000 | 2,200,000 | 1,900,000 | 5,000,000 | 13,000,000 | 9,700,000 |  |  |  | 900,000 | 9,000,000 |  |  |  | 5,200,000 |  |
Gains (Losses) on Extinguishment of Debt |  |  |  | (10,811,000) |  |  |  |  |  |  | 4,400,000 |  |  |  | 29,600,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,600,000 |  |  |  |  |  | 5,800,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Method Investment, Net Sales Proceeds |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,400,000 | 2,500,000 |
Equity Method Investment, Other than Temporary Impairment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,000,000 |  |  |  | 3,100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Method Investment, Ownership Percentage |  |  |  |  | 15.00% | [1],[2] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 13.40% |  |  |  |  |  |  |  |  |  |  |  | 50.00% |  | 50.00% |  |  |  |  |  |  |  |  |  |  | 10.00% |  |  | 45.00% | [2] |  |  |  |  |  |  |  |  | 17.90% | [2],[7] |  |  |  | 37.70% | [2],[7] |  |  |  |
Percent of Income from Continuing Operations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Liabilities |  | 323,535,000 | 321,457,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 21,300,000 |  |  | 24,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Method Investments |  | $ 1,428,155,000 | $ 1,404,214,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
[1] | This venture represents four separate joint ventures, with four separate accounts managed by Prudential Real Estate Investors ("PREI"), three of these ventures are collectively referred to as KimPru and the remaining venture is referred to as KimPru II.
[2] | The Company manages these joint venture investments and, where applicable, earns acquisition fees, leasing commissions, property management fees, assets management fees and construction management fees.
[3] | During the year ended December 31, 2012, a joint venture in which the Company holds a noncontrolling interest sold an operating property for a sales price of $62.0 million, which resulted in no gain or loss recognized.
[4] | During the year ended December 31, 2012, a joint venture in which the Company holds a noncontrolling interest acquired an operating property in Alberta, Canada for a purchase price of $41.7 million. The Company's capital contribution was $14.2 million.
[5] | During the year ended December 31, 2012, the Company amended one of its Canadian preferred equity investment agreements to restructure the investment as a pari passu joint venture in which the Company holds a noncontrolling interest. As a result of this transaction, the Company continues to account for its investment in this joint venture under the equity method of accounting and includes this investment in Investments and advances to real estate joint ventures within the Company's Consolidated Balance Sheets.
[6] | During the year ended December 31, 2012, the Company sold an operating property to a newly formed unconsolidated joint venture in which the Company has a noncontrolling interest for a sales price of $55.5 million.
[7] | Ownership % is a blended rate

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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 AICPA -Name Accounting Principles Board Opinion (APB) -Number 26 -Paragraph 20, 21 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6850294&loc=d3e12317-112629 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6850294&loc=d3e12355-112629 + Details
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- Definition The net gain (loss) resulting from sales and other disposals of real estate owned for investment purposes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.14(d)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 14 -Subparagraph d -Article 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher OTS -Name Federal Regulation (FR) -Number Title 12 -Section 563c.102 -Paragraph 13 -Subparagraph g -Chapter V -Subsection II -LegacyDoc This is a non-GAAP reference that was included in the 2009 taxonomy. It will be removed from future versions of this taxonomy. + Details
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- Definition The charge against earnings in the period to reduce the carrying amount of real property to fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6391110&loc=d3e2921-110230 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 144 -Paragraph 26 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition The number of real estate properties owned as of the balance sheet date. + References No definition available. + Details
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- Definition Reflects the sum of all other revenue and income recognized by the entity in the period not otherwise specified in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.4) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 4 -Article 7 + Details
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- Definition The aggregate carrying amount, as of the balance sheet date, of liabilities not separately disclosed in the balance sheet. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 15 -Article 9 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.15) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition The cash inflow from earnings received from real estate partnerships. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 16 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3179-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Revenue from the sale of commercial, industrial, or residential property during the period. This element is more likely than not relevant to an entity for which real estate operations are a principal activity. If real estate operations are not a principal activity, the reporting entity would likely use a gain (loss) on sale of property, plant, or equipment type element. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(e)) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 66 -Paragraph 44, 45 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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