Earnest Money Deposits (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($) Lots	Dec. 31, 2014 USD ($) Lots
Other Restricted Assets [Abstract]
Number of lots under option | Lots	1,084	1,082
Land not owned under option agreements, exercise price | $	$ 79,338	$ 71,600