Discontinued Operations and Assets and Liabilities Held-for-Sale - Consideration (Details) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended
	Apr. 10, 2017 USD ($) $ / shares shares	Mar. 31, 2017 USD ($)
Business Combination, Merger Consideration [Line Items]
Estimated tax distributions		$ 2,400
UCP
Business Combination, Merger Consideration [Line Items]
Carrying value of UCP at March 31, 2017 (reduced by $2.4 million in estimated tax distributions)		(125,171)
UCP
Business Combination, Merger Consideration [Line Items]
Impairment loss on assets classified as held-for-sale		$ (7,148)
Subsequent Event | UCP
Business Combination, Merger Consideration [Line Items]
Shares of UCP owned by the Company (shares) | shares	10,402
Subsequent Event | Century Communities, Inc.
Business Combination, Merger Consideration [Line Items]
Value of Century common stock received (priced as of the announcement date) (shares) | $ / shares	$ 26.1
Subsequent Event | UCP
Business Combination, Merger Consideration [Line Items]
Cash expected to be received ($ per share) | $ / shares	$ 5.32
Cash expected to be received	$ 55,337
Shares of Century common stock expected to be received (0.2309 per share of UCP owned (shares) | shares	2,402
Merger stock exchange ratio	0.2309
Value of Century common stock received (priced as of the announcement date)	$ 62,686
Total consideration expected to be received	$ 118,023