Business Acquisition - Fair Value of the Total Consideration and Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Jul. 01, 2015	Mar. 13, 2014	Sep. 30, 2015	Dec. 31, 2014
Assets
Goodwill			$ 21,017	$ 6,071
Bonterra Builders, LLC [Member]
Business Acquisition [Line Items]
Cash paid for net assets	$ 42,241
Contingent consideration (earn-out)	6,300
Debt repaid at closing	52,941
Total consideration	101,482
Assets
Receivables and other current assets	574
Land and other inventories	91,631
Property, plant and equipment	14
Trade name	2,000
Goodwill	14,947
Total assets acquired	109,166
Liabilities
Accounts payable	5,071
Accrued and other liabilities	763
Customer deposits	1,850
Total liabilities assumed	7,684
Total net assets acquired	101,482
Royal Oak LLC and Affiliate [Member]
Business Acquisition [Line Items]
Cash paid for net assets		$ 25,848
Cash paid for bulk land purchase		28,009
Contingent consideration (earn-out)		2,500
Debt repaid at closing		8,827
Total consideration		65,184
Assets
Prepaid and other current assets		582
Land and other inventories		60,217
Property, plant and equipment		366
Trade name		614
Goodwill		6,071
Total assets acquired		67,850
Liabilities
Accounts payable		1,343
Accrued and other liabilities		469
Customer deposits		854
Total liabilities assumed		2,666
Total net assets acquired		65,184
Trade Names [Member] | Bonterra Builders, LLC [Member]
Assets
Trade name	1,400
Trade Names [Member] | Royal Oak LLC and Affiliate [Member]
Assets
Trade name		$ 600
Noncompete Agreements [Member] | Bonterra Builders, LLC [Member]
Assets
Trade name	$ 600