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Investments in and Advances to Joint Ventures - Condensed Combined Statements of Operations of Unconsolidated Joint Venture Investments (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2017 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Expenses from operations: |  |  |  |
Operating expenses |  | $ 1,033,385 | $ 853,610 | $ 1,048,141
Impairment charges | $ 280,100 | 340,480 | 110,906 | 279,021
Depreciation and amortization |  | 346,204 | 389,519 | 402,045
Interest expense |  | 188,647 | 217,589 | 241,727
Other (income) expense, net |  | 68,003 | (3,322) | 1,739
Loss from continuing operations |  | (404,296) | (12,187) | (237,881)
Gain on disposition of real estate, net |  | 161,164 | 73,386 | 167,571
Company's share of equity in net income (loss) of joint ventures |  | 3,516 | 11,650 | (5,289)
Basis differential adjustments |  | 5,321 | 4,049 | 2,154
Equity in net income (loss) of joint ventures |  | 8,837 | 15,699 | (3,135)
Unconsolidated Joint Ventures [Member] |  |  |  |
Condensed Combined Statements of Operations |  |  |  |
Revenues from operations |  | 502,506 | 513,365 | 524,697
Expenses from operations: |  |  |  |
Operating expenses |  | 145,855 | 144,984 | 146,924
Impairment charges |  | 90,597 | 13,598 | 52,700
Depreciation and amortization |  | 180,337 | 195,198 | 207,816
Interest expense |  | 107,330 | 132,943 | 140,701
Preferred share expense |  | 32,251 | 33,418 | 25,991
Other (income) expense, net |  | 25,986 | 23,513 | 30,235
Total expenses |  | 582,356 | 543,654 | 604,367
Loss from continuing operations |  | (79,850) | (30,289) | (79,670)
Gain on disposition of real estate, net |  | 101,806 | 57,261 | 17,188
Net income (loss) attributable to unconsolidated joint ventures |  | $ 21,956 | $ 26,972 | $ (62,482)

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- Definition This item represents the amortization of the difference between the amount at which an investment accounted for under the equity method of accounting is carried on the balance sheet and the amount of the underlying equity in net assets reporting entity has in the investee. + References No definition available. + Details
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- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=68055307&loc=d3e2420-110228 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=98514028&loc=d3e3602-108585 + Details
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- Definition This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee. + 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(12)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 2: 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(10)) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 3: 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=98514028&loc=d3e3602-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=66022249&loc=d3e33749-111570 Reference 5: 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(13)(f)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
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