Investments in Affiliates - Investments in Affiliates (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Investment [Line Items]
Investments in affiliates	$ 33,182	$ 32,361
Joint Venture Unconsolidated [Member]
Investment [Line Items]
Investments in affiliates	33,182	32,361
Equity Method investments in Real Estate Affiliates [Member] \| Joint Venture Unconsolidated [Member]
Investment [Line Items]
Investments in affiliates	24,103	22,623
Other Affiliates [Member] \| Joint Venture Unconsolidated [Member]
Investment [Line Items]
Investments in affiliates	$ 9,079	$ 9,738

Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership.

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 210.5-02.12)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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