Discontinued Operations and Assets Held for Sale Impairment (Details) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2016 USD ($) a	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) a	Sep. 30, 2015 USD ($)
Acres of Land with Impairment Charge \| a	174		174
Impairment Charges	$ 3,042	$ 2,426	$ 15,098	$ 7,896
Land [Member]
Impairment Charges	0	2,426	12,056	7,032
buildings [Member]
Impairment Charges	$ 3,042	$ 0	$ 3,042	$ 864

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.

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=51824106&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=56944662&loc=d3e3602-108585

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration