Assets Held for Sale (Details) - Florida [Member] - 2017 held for sale [Member] - Disposal Group, Held-for-sale, Not Discontinued Operations [Member] $ in Millions	Jun. 30, 2017 USD ($) a
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Acres of developable land \| a	4.9
Land held for development \| $	$ 2.7

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.

No definition available.

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration