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Margin recognized on contracts with employees.

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Cost of Land and Lots Sales

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- Definition

Equity Method Investment, Board Seats

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Equity Method Investment, Board Seats Held

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- Definition

Number of Real Estate Properties, Remaining to be Purchased

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- Definition

Payments for Capital Contributions, Percent of Total Contributions

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- Definition

Percentage of Voting Interest

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- Definition

PercentofCentreLivingOperationsConsolidated

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- Definition

The current amount of expenditures for a real estate project that has not yet been completed.

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- Definition

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

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- Definition

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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- Definition

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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- Definition

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

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No definition available.

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- Definition

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

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- Definition

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

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No definition available.

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- Definition

The number of units in a real estate property owned as of the balance sheet date.

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No definition available.

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- Definition

Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

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- Definition

Cash outflow related to amounts given in advance to show or confirm an intention to complete an acquisition of land, buildings, other structures, or any item classified as real estate.

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No definition available.

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- Definition

The cash outflow from the acquisition of residential property intended to generate income for the owner.

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- Definition

The cash inflow from earnings received from real estate partnerships.

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- Definition

Cash received for the sale of real estate that is not part of an investing activity during the current period.

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Amount of deposits held by the entity for a related party (entity, shareholder, employee).

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- Definition

Amount of transactions with related party during the financial reporting period.

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- Definition

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)	1 Months Ended			2 Months Ended	3 Months Ended			6 Months Ended		12 Months Ended		28 Months Ended
Related Party Transactions (Details)	Feb. 28, 2017 USD ($)	Sep. 30, 2016	Jun. 30, 2016 USD ($) lot townhome	Jun. 30, 2018 USD ($) board_seat	Jun. 30, 2018 USD ($) board_seat	Dec. 31, 2017 USD ($) lot	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($) board_seat	Jun. 30, 2017 USD ($)	Dec. 31, 2017 USD ($) lot	Dec. 31, 2015 USD ($)	Jun. 30, 2018 USD ($) board_seat	Mar. 31, 2016 lot townhome	Sep. 30, 2015 lot townhome
Related Party Transaction [Line Items]
Noncontrolling interests				$ 12,208,000	$ 12,208,000	$ 16,691,000		$ 12,208,000		$ 16,691,000		$ 12,208,000
Suwanee Station
Related Party Transaction [Line Items]
Board seats held \| board_seat				2	2			2				2
Board seats available \| board_seat				3	3			3				3
Centre Living
Related Party Transaction [Line Items]
Ownership percentage by parent				50.00%	50.00%			50.00%				50.00%
Ownership percentage by noncontrolling owners				50.00%	50.00%			50.00%				50.00%
Percentage of voting interest				51.00%	51.00%			51.00%				51.00%
Percent of centre living operations consolidated								100.00%
Noncontrolling interests				$ 76,020	$ 76,020	56,445		$ 76,020		56,445		$ 76,020
Centre Living \| Richard A. Costello
Related Party Transaction [Line Items]
Proceeds from sale of developed lot						495,000
Related party deposit liabilities	$ 110,000
Centre Living \| Jed Dolson
Related Party Transaction [Line Items]
Proceeds from sale of developed lot						472,000
Related party deposit liabilities	$ 110,000
Centre Living \| Developed Lots
Related Party Transaction [Line Items]
Number of real estate properties \| lot			1
Proceeds from sale of developed lot			$ 400,000
Cost of developed lot sold			$ 300,000
Contract price employee discount premium		13.00%
Development in Process						$ 600,000				$ 600,000
Investee \| The Parc at Cogburn
Related Party Transaction [Line Items]
Number of real estate properties \| lot														11
Number of units in real estate property \| townhome														19
Payments to acquire real estate							$ 500,000		$ 1,000,000		$ 1,800,000
Number of lots remaining to be purchased \| lot						0				0
Investee \| Academy Street
Related Party Transaction [Line Items]
Ownership percentage by parent													80.00%
Ownership percentage by noncontrolling owners													20.00%
Number of real estate properties \| lot													83
Capital contributions made							0	0	400,000			11,700,000
Distributions received					1,800,000		900,000	1,800,000	$ 4,900,000
Payment for capital contributions, percent paid by the Company									80.00%
Investee \| Academy Street \| Partnership Distributions
Related Party Transaction [Line Items]
Amount of transaction					2,200,000		1,200,000	2,200,000	$ 6,200,000
Investee \| Suwanee Station
Related Party Transaction [Line Items]
Number of real estate properties \| townhome													73
Capital contributions made							400,000	0	400,000			2,500,000
Distributions received								300,000	200,000
Contributions to the partnership contributed by the Company							200,000		200,000
Investee \| Suwanee Station \| Parent Company
Related Party Transaction [Line Items]
Ownership percent													50.00%
Investee \| Suwanee Station \| Affiliated Entity
Related Party Transaction [Line Items]
Ownership percent													50.00%
Investee \| Suwanee Station \| Partnership Distributions
Related Party Transaction [Line Items]
Amount of transaction					0		$ 0	700,000	400,000
Investee \| Dunwoody Towneship
Related Party Transaction [Line Items]
Number of real estate properties \| lot			14			26				26
Number of units in real estate property \| townhome			40
Payments to acquire real estate									$ 1,300,000	$ 3,300,000
Chief Financial Officer \| Townhome
Related Party Transaction [Line Items]
Contract price employee discount premium	13.00%
Named Executive Officers \| Townhome
Related Party Transaction [Line Items]
Contract price employee discount premium	13.00%
Affiliated Entity \| Office Space Lease Agreements \| GHO Homes
Related Party Transaction [Line Items]
Rent expense incurred				31,165
Amounts due to affiliates				0	0			0				0
Affiliated Entity \| Title Closing Services \| GHO Homes
Related Party Transaction [Line Items]
Amounts due to affiliates				$ 0	$ 0			$ 0				$ 0