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Dispositions (Details) - USD ($) $ in Thousands			9 Months Ended
	Sep. 17, 2021	Mar. 29, 2021	Sep. 30, 2021	Sep. 30, 2020
Discontinued Operations:
Proceeds from sale of assets			$ 323,018	$ 16,315
Repayments of debt	$ 100,142		$ 1,973,668	$ 20,830
Paradise Valley Mall | Sold
Discontinued Operations:
Gain on sale of assets		$ 100,000
Gain on sale of land		$ 5,563
Ownership percentage		5.00%
Tucson La Encantada in Tucson, Arizona | Sold
Discontinued Operations:
Gain on sale of assets	117,242
Proceeds from sale of assets	$ 165,250

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Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
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-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
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-Topic 230
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-Section 45
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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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