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Equity Method Investment, Board Seats Held

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Lots Purchased, Cost

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Lots Remaining To Be Sold

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Number of Lots Purchased

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Percentage of Voting Interest

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Carrying amount as of the balance sheet date of obligations due all related parties.

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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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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).

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The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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The number of real estate properties owned as of the balance sheet date.

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Cash outflow to owners or shareholders, excluding ordinary dividends. Includes special dividends.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Related Party Transactions (Details)	3 Months Ended		6 Months Ended		40 Months Ended
Related Party Transactions (Details)	Jun. 30, 2019 USD ($) board_seat	Jun. 30, 2018 USD ($)	Jun. 30, 2019 USD ($) board_seat	Jun. 30, 2018 USD ($)	Jun. 30, 2019 USD ($) board_seat	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Mar. 31, 2016 townhome
Related Party Transaction [Line Items]
Noncontrolling interests	$ 5,173,000	$ 12,208,000	$ 5,173,000	$ 12,208,000	$ 5,173,000	$ 4,788,000	$ 17,281,000	$ 10,682,000	$ 16,691,000
Lots Remaining To Be Sold	0		0		0
Suwanee Station
Related Party Transaction [Line Items]
Board seats held \| board_seat	2		2		2
Board seats available \| board_seat	3		3		3
Centre Living
Related Party Transaction [Line Items]
Ownership percentage by parent	50.00%		50.00%		50.00%
Ownership percentage by noncontrolling owners	50.00%		50.00%		50.00%
Percentage of voting interest	51.00%		51.00%		51.00%
Investee \| Suwanee Station
Related Party Transaction [Line Items]
Number of real estate properties \| townhome										73
Payments of Capital Distribution	$ 500,000	$ 0.0	$ 900,000	$ 700,000	$ 3,300,000
Number of Lots Purchased	7	3	13	11
Lots Purchased, Cost	$ 300,000	$ 200,000	$ 500,000	$ 700,000
Investee \| Suwanee Station \| Green Brick Partners, Inc. [Member]
Related Party Transaction [Line Items]
Payments of Capital Distribution	300,000	$ 0.0	500,000	$ 300,000
Investee \| Suwanee Station \| Parent Company [Member]
Related Party Transaction [Line Items]
Equity Method Investment, Ownership Percentage										50.00%
Investee \| Suwanee Station \| Affiliated Entity
Related Party Transaction [Line Items]
Equity Method Investment, Ownership Percentage										50.00%
Affiliated Entity \| Office Space Lease Agreements \| GHO Homes [Member]
Related Party Transaction [Line Items]
Amounts due to affiliates	0		0		0
Affiliated Entity \| Title Closing Services \| GHO Homes [Member]
Related Party Transaction [Line Items]
Amounts due to affiliates	$ 0		$ 0		$ 0