Investments in Unconsolidated Entities - Pre-Development Projects (Details) - Europe - Pre-Development Europe Projects Joint Venture - Disposed by Sales $ in Millions	Mar. 19, 2015 USD ($)
Investments in Unconsolidated Entities
Aggregate proceeds received	$ 19.0
Gain on disposal of equity method investment	$ 8.3

This item represents the amount of net sales proceeds received on disposal of an equity method investment.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 35
-Paragraph 35
-URI http://asc.fasb.org/extlink&oid=49116238&loc=d3e32847-111569

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Balance Type:	credit
Period Type:	duration