Real Estate (Held For Sale) (Details) $ in Thousands	12 Months Ended
Dec. 31, 2017 USD ($) property	Dec. 31, 2016 USD ($) property
Real Estate [Abstract]
Number of properties classified as held for sale \| property	4	18
Number of sold properties \| property	14
Land and improvements	$ 2,581	$ 15,106
Building and improvements	3,252	17,185
Real estate held for sale, gross	5,833	32,291
Less accumulated depreciation and amortization	(886)	(3,459)
Less impairment	(864)	(2,748)
Real estate held for sale, net	$ 4,083	$ 26,084

Accumulated Impairment Real Estate Held For Sale

No definition available.

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- Definition

Inventory, Building, Held-for-sale

+ References

No definition available.

+ Details

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- Definition

Number Of Properties Classified As Held For Sale

+ References

No definition available.

+ Details

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- Definition

Number of Properties Sold

+ References

No definition available.

+ Details

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- Definition

Carrying amount as of the balance sheet date of parcels of land held for sale, and on which the entity has no intention or no further intention to perform construction activities.

+ 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 210.5-02.6(a))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Balance Type:	debit
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- Definition

Represents properties which were acquired directly or through foreclosure for which a committed plan to sell exists and an active program to market such properties has been initiated.

+ References

No definition available.

+ Details

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- References

No definition available.

+ Details

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- Definition

Carrying amount as of the balance sheet date of investments in land and buildings held for sale, excluding real estate considered to be inventory of the entity.

+ 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(f))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ 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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