Net Change in Operating Accounts (Effect Of Changes In The Operating Accounts On Cash Flows From Operating Activities) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017
Increase (Decrease) in Operating Capital [Abstract]
Other assets, net	$ 2,236	$ 2,200
Accounts payable and accrued expenses	(9,836)	(7,786)
Accrued real estate taxes	(22,464)	(24,359)
Other liabilities	1,600	(2,211)
Other	700	743
Change in operating accounts and other	$ (27,764)	$ (31,413)

The increase (decrease) during the reporting period in the amounts payable to vendors for goods and services received and the amount of obligations and expenses incurred but not paid.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

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- Definition

The increase (decrease) during the reporting period of all assets and liabilities used in operating activities.

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- References

No definition available.

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- Definition

Amount of increase (decrease) in operating assets classified as other.

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Amount of increase (decrease) in operating liabilities classified as other.

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- Definition

The increase (decrease) during the period in the amount of cash payments due to taxing authorities for non-income-related taxes.

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- Definition

Amount of income (expense) included in net income that results in no cash inflow (outflow), classified as other.

+ 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=98514028&loc=d3e3602-108585

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