Estimated Development Liability (Details) home in Thousands, $ in Thousands	3 Months Ended
Mar. 31, 2016 USD ($) home	Mar. 31, 2015 USD ($)	Dec. 31, 2015 USD ($)
Estimated Development Liability
Number of estimated homes the estimated liability covers (homesites) \| home	8
Charges related to estimated liability for sold land	$ 0	$ 100
Estimated development liability	$ 32,512		$ 32,551

This element represents the cost of improvements during the period related to retail land sales in which the obligation to complete such improvements represent a contractual responsibility of the land developer (seller). Such obligation is generally included in the sales terms.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 976
-SubTopic 605
-Section 30
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=51665627&loc=d3e23564-108670

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 976
-SubTopic 605
-Section 55
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=51673892&loc=d3e23992-108672

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 976
-SubTopic 605
-Section 55
-Paragraph 14
-URI http://asc.fasb.org/extlink&oid=51673892&loc=d3e24124-108672

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