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Conversion Ratio

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Forfeited Deposits

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Recognition Of Deferred Costs

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Summary of Significant Accounting Policies [Line Items]

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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Refundable consideration, usually cash, held by the entity pending satisfactory completion of the entity's obligations or pending the closing of a contract.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Amount of fresh-start adjustment to retained earnings or deficit.

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Other costs incurred during the reporting period related to other revenue generating activities.

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Amount of revenue and income classified as other.

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The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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The amount of a reclassification adjustment made to prior period financial statement amounts.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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The amount of previously reported deferred or unearned revenue that was recognized as revenue during the period. For cash flows, this element primarily pertains to amortization of deferred credits on long-term arrangements. As a noncash item, it is deducted from net income when calculating cash provided by or used in operations using the indirect method.

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Number of shares of stock issued as of the balance sheet date, including shares that had been issued and were previously outstanding but which are now held in the treasury.

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Basis of Presentation (Narrative) (Details) $ / shares in Units, shares in Thousands, $ in Thousands				3 Months Ended	9 Months Ended
	Jun. 14, 2018 USD ($)	Jan. 01, 2018 USD ($)	Aug. 04, 2017 USD ($) $ / shares shares	Sep. 30, 2018 USD ($)	Sep. 30, 2018 USD ($) segment	Sep. 30, 2017 USD ($)	Dec. 31, 2017 USD ($)	Oct. 31, 2017 USD ($)	Nov. 30, 2016
Summary of Significant Accounting Policies [Line Items]
Number of operating segments \| segment					5
Business combination net of acquired cash					$ 28,036	$ 77,457
Forfeited deposits				$ 500	900
Other income, land sales to third parties				800	7,700
Cost of land dispositions				600	7,800
Deferred revenue, related to unsatisfied performance obligations				100	1,800
Deferred costs, related to unsatisfied performance obligations				100	1,700
Reclassification of costs from inventory to property and equipment		$ 2,300
Decrease retained earnings		$ 600
Earnest money deposits				$ 18,988	$ 18,988		$ 14,077
UCP, Inc [Member]
Summary of Significant Accounting Policies [Line Items]
Conversion of stock, ratio			0.2309%
Business combination net of acquired cash			$ 100,150
Purchase price			209,036
Business combination, purchase price			$ 107,737
Sundquist Homes [Member]
Summary of Significant Accounting Policies [Line Items]
Purchase price								$ 50,203
Wade Jurney Homes [Member]
Summary of Significant Accounting Policies [Line Items]
Purchase price	$ 73,125
Ownership interest	50.00%								50.00%
Business combination, purchase price	$ 37,500
Minimum [Member]
Summary of Significant Accounting Policies [Line Items]
Estimated life of the community based					2 years
Maximum [Member]
Summary of Significant Accounting Policies [Line Items]
Estimated life of the community based					3 years
Common Class A [Member] \| UCP, Inc [Member]
Summary of Significant Accounting Policies [Line Items]
Conversion of stock, cash \| $ / shares			$ 5.32
Century Common Stock [Member] \| UCP, Inc [Member]
Summary of Significant Accounting Policies [Line Items]
Shares issued in connection to merger \| shares			4,176