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Investments in Partially Owned Entities (Details) - USD ($) | 3 Months Ended |  |  |
--- | --- | --- | --- | ---
Mar. 31, 2016 | Mar. 31, 2015 | Dec. 31, 2015 | Dec. 31, 2014 | Feb. 27, 2013
Partially Owned Property Balance Sheet Schedule |  |  |  |  |
Number of Real Estate Properties | 317 |  |  |  |
Number of Units in Real Estate Property | 83,992 |  |  |  |
ASSETS |  |  |  |  |
Investment in real estate | $ 25,120,866,000 |  | $ 25,182,352,000 |  |
Accumulated depreciation | (4,977,274,000) |  | (4,905,406,000) |  |
Investment in real estate, net | 20,143,592,000 |  | 20,276,946,000 |  |
Cash and cash equivalents | 368,049,000 | $ 49,418,000 | 42,276,000 | $ 40,080,000 |
Investments in unconsolidated entities | 66,476,000 |  | 68,101,000 |  |
Deposits – restricted | 241,741,000 |  | 55,893,000 |  |
Other assets | 422,079,000 |  | 428,899,000 |  |
Total assets | 21,301,292,000 |  | 23,110,196,000 |  |
LIABILITIES AND EQUITY |  |  |  |  |
Secured Debt | 4,223,681,000 |  | 4,685,134,000 |  |
Accounts payable & accrued expenses | 215,817,000 |  | 187,124,000 |  |
Accrued interest payable | 69,404,000 |  | 85,221,000 |  |
Other Liabilities | 347,553,000 |  | 366,387,000 |  |
Security deposits | 63,592,000 |  | 77,582,000 |  |
Total liabilities | 9,471,497,000 |  | 11,847,058,000 |  |
Noncontrolling Interests – Partially Owned Properties/Partners' equity | 4,399,000 |  | 4,608,000 |  |
Liabilities and Equity | 21,301,292,000 |  | $ 23,110,196,000 |  |
Partially Owned Property Income Statement Schedule |  |  |  |  |
Operating revenue | 619,083,000 | 666,371,000 |  |  |
Property management | 23,495,000 | 22,765,000 |  |  |
General and administrative/other | 172,885,000 | 194,521,000 |  |  |
Depreciation | 16,717,000 | 19,762,000 |  |  |
Operating income | 216,625,000 | 218,331,000 |  |  |
Interest and other income | 3,058,000 | 169,000 |  |  |
Interest: |  |  |  |  |
Expense incurred, net | (213,492,000) | (108,782,000) |  |  |
Amortization of deferred financing costs | (5,394,000) | (2,589,000) |  |  |
(Loss) income before income and other taxes, (loss) income from investments in unconsolidated entities, net gain (loss) on sales of real estate properties and land parcels and discontinued operations | (1,759,000) | 107,199,000 |  |  |
Income and other tax (expense) benefit | (350,000) | (43,000) |  |  |
(Loss) income from investments in unconsolidated entities | (1,104,000) | 2,963,000 |  |  |
Net income | $ 3,731,831,000 | $ 190,224,000 |  |  |
Consolidated VIE |  |  |  |  |
Partially Owned Property Balance Sheet Schedule |  |  |  |  |
Number of Real Estate Properties | 18 |  |  |  |
Number of Units in Real Estate Property | 3,471 |  |  |  |
ASSETS |  |  |  |  |
Investment in real estate | $ 665,996,000 |  |  |  |
Accumulated depreciation | (209,424,000) |  |  |  |
Investment in real estate, net | 456,572,000 |  |  |  |
Cash and cash equivalents | 15,051,000 |  |  |  |
Investments in unconsolidated entities | 48,797,000 |  |  |  |
Deposits – restricted | 351,000 |  |  |  |
Other assets | 25,948,000 |  |  |  |
Total assets | 546,719,000 |  |  |  |
LIABILITIES AND EQUITY |  |  |  |  |
Secured Debt | 317,801,000 |  |  |  |
Accounts payable & accrued expenses | 2,786,000 |  |  |  |
Accrued interest payable | 1,099,000 |  |  |  |
Other Liabilities | 521,000 |  |  |  |
Security deposits | 1,939,000 |  |  |  |
Total liabilities | 324,146,000 |  |  |  |
Noncontrolling Interests – Partially Owned Properties/Partners' equity | 4,399,000 |  |  |  |
Company equity/General and Limited Partners' Capital | 218,174,000 |  |  |  |
Total equity/capital | 222,573,000 |  |  |  |
Liabilities and Equity | 546,719,000 |  |  |  |
Partially Owned Property Income Statement Schedule |  |  |  |  |
Operating revenue | 22,997,000 |  |  |  |
Operating Expenses | 5,598,000 |  |  |  |
Net operating income | 17,399,000 |  |  |  |
Property management | 811,000 |  |  |  |
General and administrative/other | 15,000 |  |  |  |
Depreciation | 5,369,000 |  |  |  |
Operating income | 11,204,000 |  |  |  |
Interest and other income | 20,000 |  |  |  |
Interest: |  |  |  |  |
Expense incurred, net | (4,038,000) |  |  |  |
Amortization of deferred financing costs | (147,000) |  |  |  |
(Loss) income before income and other taxes, (loss) income from investments in unconsolidated entities, net gain (loss) on sales of real estate properties and land parcels and discontinued operations | 7,039,000 |  |  |  |
Income and other tax (expense) benefit | (12,000) |  |  |  |
(Loss) income from investments in unconsolidated entities | (369,000) |  |  |  |
Net income | $ 6,658,000 |  |  |  |
Unconsolidated Non-VIE |  |  |  |  |
Partially Owned Property Balance Sheet Schedule |  |  |  |  |
Number of Real Estate Properties | 2 |  |  |  |
Number of Units in Real Estate Property | 945 |  |  |  |
ASSETS |  |  |  |  |
Investment in real estate | $ 234,383,000 |  |  |  |
Accumulated depreciation | (24,991,000) |  |  |  |
Investment in real estate, net | 209,392,000 |  |  |  |
Cash and cash equivalents | 7,836,000 |  |  |  |
Investments in unconsolidated entities | 0 |  |  |  |
Deposits – restricted | 242,000 |  |  |  |
Other assets | 103,000 |  |  |  |
Total assets | 217,573,000 |  |  |  |
LIABILITIES AND EQUITY |  |  |  |  |
Secured Debt | 145,423,000 |  |  |  |
Accounts payable & accrued expenses | 1,729,000 |  |  |  |
Accrued interest payable | 691,000 |  |  |  |
Other Liabilities | 258,000 |  |  |  |
Security deposits | 510,000 |  |  |  |
Total liabilities | 148,611,000 |  |  |  |
Noncontrolling Interests – Partially Owned Properties/Partners' equity | 63,809,000 |  |  |  |
Company equity/General and Limited Partners' Capital | 5,153,000 |  |  |  |
Total equity/capital | 68,962,000 |  |  |  |
Liabilities and Equity | 217,573,000 |  |  |  |
Partially Owned Property Income Statement Schedule |  |  |  |  |
Operating revenue | 6,528,000 |  |  |  |
Operating Expenses | 2,196,000 |  |  |  |
Net operating income | 4,332,000 |  |  |  |
Property management | 190,000 |  |  |  |
General and administrative/other | 0 |  |  |  |
Depreciation | 2,621,000 |  |  |  |
Operating income | 1,521,000 |  |  |  |
Interest and other income | 0 |  |  |  |
Interest: |  |  |  |  |
Expense incurred, net | (2,072,000) |  |  |  |
Amortization of deferred financing costs | 0 |  |  |  |
(Loss) income before income and other taxes, (loss) income from investments in unconsolidated entities, net gain (loss) on sales of real estate properties and land parcels and discontinued operations | (551,000) |  |  |  |
Income and other tax (expense) benefit | 0 |  |  |  |
(Loss) income from investments in unconsolidated entities | 0 |  |  |  |
Net income | (551,000) |  |  |  |
Unconsolidated Non-VIE | Residual JV [Domain] |  |  |  |  |
ASSETS |  |  |  |  |
Investments in unconsolidated entities | $ (900,000) |  |  |  | $ 147,600,000
Investments In Partially Owned Entities (Textuals) [Abstract] |  |  |  |  |
Business Acquisition, Percentage of Voting Interests Acquired | 60.00% |  |  |  |
Joint Venture Partner Ownership Percentage | 40.00% |  |  |  |
Unconsolidated VIE |  |  |  |  |
Partially Owned Property Balance Sheet Schedule |  |  |  |  |
Number of Real Estate Properties | 1 |  |  |  |
Number of Units in Real Estate Property | 336 |  |  |  |
ASSETS |  |  |  |  |
Investment in real estate | $ 229,599,000 |  |  |  |
Accumulated depreciation | (49,194,000) |  |  |  |
Investment in real estate, net | 180,405,000 |  |  |  |
Cash and cash equivalents | 1,201,000 |  |  |  |
Investments in unconsolidated entities | 0 |  |  |  |
Deposits – restricted | 47,000 |  |  |  |
Other assets | 786,000 |  |  |  |
Total assets | 182,439,000 |  |  |  |
LIABILITIES AND EQUITY |  |  |  |  |
Secured Debt | 29,269,000 |  |  |  |
Accounts payable & accrued expenses | 351,000 |  |  |  |
Accrued interest payable | 0 |  |  |  |
Other Liabilities | 216,000 |  |  |  |
Security deposits | 159,000 |  |  |  |
Total liabilities | 29,995,000 |  |  |  |
Noncontrolling Interests – Partially Owned Properties/Partners' equity | 108,968,000 |  |  |  |
Company equity/General and Limited Partners' Capital | 43,476,000 |  |  |  |
Total equity/capital | 152,444,000 |  |  |  |
Liabilities and Equity | 182,439,000 |  |  |  |
Partially Owned Property Income Statement Schedule |  |  |  |  |
Operating revenue | 2,913,000 |  |  |  |
Operating Expenses | 1,153,000 |  |  |  |
Net operating income | 1,760,000 |  |  |  |
Property management | 19,000 |  |  |  |
General and administrative/other | 86,000 |  |  |  |
Depreciation | 1,858,000 |  |  |  |
Operating income | (203,000) |  |  |  |
Interest and other income | 0 |  |  |  |
Interest: |  |  |  |  |
Expense incurred, net | (272,000) |  |  |  |
Amortization of deferred financing costs | 0 |  |  |  |
(Loss) income before income and other taxes, (loss) income from investments in unconsolidated entities, net gain (loss) on sales of real estate properties and land parcels and discontinued operations | (475,000) |  |  |  |
Income and other tax (expense) benefit | 0 |  |  |  |
(Loss) income from investments in unconsolidated entities | 0 |  |  |  |
Net income | $ (475,000) |  |  |  |
Unconsolidated Properties [Member] |  |  |  |  |
Partially Owned Property Balance Sheet Schedule |  |  |  |  |
Number of Real Estate Properties | 3 |  |  |  |
Number of Units in Real Estate Property | 1,281 |  |  |  |
ASSETS |  |  |  |  |
Investment in real estate | $ 463,982,000 |  |  |  |
Accumulated depreciation | (74,185,000) |  |  |  |
Investment in real estate, net | 389,797,000 |  |  |  |
Cash and cash equivalents | 9,037,000 |  |  |  |
Investments in unconsolidated entities | 0 |  |  |  |
Deposits – restricted | 289,000 |  |  |  |
Other assets | 889,000 |  |  |  |
Total assets | 400,012,000 |  |  |  |
LIABILITIES AND EQUITY |  |  |  |  |
Secured Debt | 174,692,000 |  |  |  |
Accounts payable & accrued expenses | 2,080,000 |  |  |  |
Accrued interest payable | 691,000 |  |  |  |
Other Liabilities | 474,000 |  |  |  |
Security deposits | 669,000 |  |  |  |
Total liabilities | 178,606,000 |  |  |  |
Noncontrolling Interests – Partially Owned Properties/Partners' equity | 172,777,000 |  |  |  |
Company equity/General and Limited Partners' Capital | 48,629,000 |  |  |  |
Total equity/capital | 221,406,000 |  |  |  |
Liabilities and Equity | 400,012,000 |  |  |  |
Partially Owned Property Income Statement Schedule |  |  |  |  |
Operating revenue | 9,441,000 |  |  |  |
Operating Expenses | 3,349,000 |  |  |  |
Net operating income | 6,092,000 |  |  |  |
Property management | 209,000 |  |  |  |
General and administrative/other | 86,000 |  |  |  |
Depreciation | 4,479,000 |  |  |  |
Operating income | 1,318,000 |  |  |  |
Interest and other income | 0 |  |  |  |
Interest: |  |  |  |  |
Expense incurred, net | (2,344,000) |  |  |  |
Amortization of deferred financing costs | 0 |  |  |  |
(Loss) income before income and other taxes, (loss) income from investments in unconsolidated entities, net gain (loss) on sales of real estate properties and land parcels and discontinued operations | (1,026,000) |  |  |  |
Income and other tax (expense) benefit | 0 |  |  |  |
(Loss) income from investments in unconsolidated entities | 0 |  |  |  |
Net income | $ (1,026,000) |  |  |  |

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- Definition Amount of the cost of borrowed funds accounted for as interest expense for debt. + 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 210.5-03.8) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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- Definition Amount of interest payable on debt, including, but not limited to, trade payables. + 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 210.9-03.15(5)) -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 210.7-03.15(a)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership. + References Reference 1: 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 + Details
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- Definition Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19-26) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.32) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 25 -Article 7 + 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 The number of units in a real estate property owned as of the balance sheet date. + References No definition available. + Details
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- Definition Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. + References No definition available. + Details
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- Definition The aggregate carrying amounts, as of the balance sheet date, of assets not separately disclosed in the balance sheet. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 10 -Article 7 + Details
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- Definition The aggregate costs related to management of owned properties during the reporting period. + 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 210.5-03.2(d)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=51664549&loc=SL4569616-111683 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4K -URI http://asc.fasb.org/extlink&oid=35736750&loc=SL4591552-111686 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=18733093&loc=SL4573702-111684 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4J -URI http://asc.fasb.org/extlink&oid=35736750&loc=SL4591551-111686 + Details
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- Definition The cumulative amount of depreciation for real estate property held for investment purposes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(3)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition Amount of real estate investment property which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(d)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition Amount of real estate investment property, net of accumulated depreciation, which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(d)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. This element is for unclassified presentations; for classified presentations there is a separate and distinct element. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + 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) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.15(a)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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