| **Other Assets Notes Receivable, net (Details) - USD ($)**                                                                                                    | 1 Months Ended |             |        |             |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------|-------------|--------|-------------|
||
| **Loans and Leases Receivable Disclosure [Line Items]**                                                                                                       |           |        |   |        |
| Notes receivable, net                                                                                                                                         |           | $ 1,926,000 |   | $ 2,555,000 |
| Allowance for notes receivable                                                                                                                                |           | 0           |   | 0           |
| Pier Park Community Development District notes, non-interest bearing, due September 2022, effective rates 5.93% — 6.50% through November 2016           |           |        |   |        |
| **Loans and Leases Receivable Disclosure [Line Items]**                                                                                                       |           |        |   |        |
| Notes receivable, net                                                                                                                                         |           | 1,684,000   |   | 1,985,000   |
| Pier Park Community Development District notes, non-interest bearing, due September 2022, effective rates 5.93% — 6.50% through November 2016 | Minimum |           |        |   |        |
| **Loans and Leases Receivable Disclosure [Line Items]**                                                                                                       |           |        |   |        |
| Mortgage loans, stated interest rate                                                                                                                          |           |        | 5.93%  |        |
| Pier Park Community Development District notes, non-interest bearing, due September 2022, effective rates 5.93% — 6.50% through November 2016 | Maximum |           |        |   |        |
| **Loans and Leases Receivable Disclosure [Line Items]**                                                                                                       |           |        |   |        |
| Mortgage loans, stated interest rate                                                                                                                          |           |        | 6.50%  |        |
| Interest bearing homebuilder notes, secured by the real estate sold — 4.0% interest rate, due December 2016, paid January 2017                          |           |        |   |        |
| **Loans and Leases Receivable Disclosure [Line Items]**                                                                                                       |           |        |   |        |
| Notes receivable, net                                                                                                                                         |           | $ 33,000    |   | 90,000      |
| Mortgage loans, stated interest rate                                                                                                                          |           | 4.00%       |   |        |
| Various mortgage notes, secured by certain real estate, bearing interest at various rates                                                                     |           |        |   |        |
| **Loans and Leases Receivable Disclosure [Line Items]**                                                                                                       |           |        |   |        |
| Notes receivable, net                                                                                                                                         |           | $ 209,000   |   | $ 480,000   |
| Subsequent Event                                                                                                                                              |           |        |   |        |
| **Loans and Leases Receivable Disclosure [Line Items]**                                                                                                       |           |        |   |        |
| Proceeds from collection of homebuilder notes                                                                                                                 | $ 33,000       |        |   |        |

| X                                                                                                                                                                                                                                                                            |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Mortgage Loans on Real Estate, Stated Interest Rate
+ References
No definition available.
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.
+ References
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - 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.
+ References
No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of principal collected on mortgage loans on real estate during the reporting period.
+ References
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Net amount of the investment in a contractual right to receive money on demand or on fixed or determinable dates that is recognized as an asset in the creditor's statement of financial position. Examples include, but are not limited to, credit card receivables, notes receivable and receivables relating to lessor's rights to payments from leases other than operating leases that have been recorded as assets. Excludes trade accounts receivable with contractual maturity of one year or less and arose from the sale of goods or services.
+ References
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| X                                                                                                                                                                                                                           |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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| X                                                                                                                                                                                                               |
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