Investment in Unconsolidated Entities (Details) (LNR, USD $) In Millions, unless otherwise specified	0 Months Ended		9 Months Ended	0 Months Ended
Apr. 19, 2013 Joint venture	Sep. 30, 2013 Joint venture	Sep. 30, 2013 Joint venture Auction.com	Sep. 30, 2013 Real estate investment venture	Apr. 19, 2013 Joint venture, two	Sep. 30, 2013 Joint venture, two
Investment in Unconsolidated Entities
Ownership interest acquired (as a percent)	50.00%		50.00%		50.00%
Investment acquired balance		$ 55.8		$ 23.8		$ 21.1
Interest in investment venture in real estate (as a percent)				50.00%

This element represents the aggregate cost of investments accounted for under the equity method of accounting.

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

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 12

-Article 5

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant