Estimated Development Liability for Sold Land (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 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	$ 36,086		$ 36,086			$ 36,117
Less costs relating to unsold home sites	(2,885)		(2,885)			(2,885)
Estimated development liability for sold land	33,201		33,201			33,232
Charges related to estimated liability for sold land	0	0	0	29
Cash expenditures for improvements	$ 0	$ 0	$ 31	$ 20