Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
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-Section S99
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Section S99
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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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SEGMENTS (Summary of Assets by Segment and Reconciliation of Segment Assets to Total Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Jan. 28, 2017	Dec. 31, 2016
Reconciliation of total segment assets to total assets
Assets	$ 6,729,064		$ 6,367,382
Las Vegas 51s
Reconciliation of total segment assets to total assets
Ownership interest (as a percent)	50.00%
Constellation
Reconciliation of total segment assets to total assets
Ownership interest (as a percent)	50.00%	50.00%
Operating Segments
Reconciliation of total segment assets to total assets
Assets	$ 5,999,879		5,779,048
Operating Segments \| Master Planned Communities
Reconciliation of total segment assets to total assets
Assets	1,999,090		1,982,639
Operating Segments \| Operating Assets
Reconciliation of total segment assets to total assets
Assets	2,489,177		2,344,949
Operating Segments \| Strategic Developments
Reconciliation of total segment assets to total assets
Assets	1,511,612		1,451,460
Corporate
Reconciliation of total segment assets to total assets
Assets	$ 729,185		$ 588,334