Estimated Development Liability for Sold Land (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Mar. 31, 2014 homesite	Dec. 31, 2013
Estimated Development Liability for Sold Land [Abstract]
Number of estimated homes the estimated liability covers (homesites)					8,000
Gross estimated unexpended costs	$ 35,935		$ 35,935			$ 36,117
Less costs relating to unsold home sites	(2,885)		(2,885)			(2,885)
Estimated development liability for sold land	33,050		33,050			33,232
Charges related to estimated liability for sold land	$ 151	$ 17	$ 176	$ 46