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.

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

Name:	us-gaap_RealEstateHeldforsale
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Real Estate Investments - Assets Held for Sale (Details) $ in Millions	3 Months Ended
	Mar. 31, 2015 USD ($)	Sep. 30, 2015 USD ($) property	Dec. 31, 2014 property
Acquisitions and Dispositions [Line Items]
Number of properties held for sale		2	2
Discontinued Operations [Member]
Acquisitions and Dispositions [Line Items]
Number of properties held for sale			2
Real Estate Held-for-sale \| $		$ 5.3
Impairments related to property held for sale \| $	$ 3.3