| **Significant Accounting Policies** | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  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| **Accounting Policies [Abstract]**  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  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| Significant Accounting Policies     | Significant Accounting PoliciesBasis of Presentation and Principles of ConsolidationThe consolidated financial statements include the accounts of the Company and all of its majority-owned and controlled subsidiaries and variable interest entities where the Company is the primary beneficiary. Investments in joint ventures and limited partnerships in which the Company has significant influence, but not a controlling interest are accounted for by the equity method. All significant intercompany transactions and balances have been eliminated in consolidation. Certain prior period amounts have been reclassified to conform to the current period’s presentation.Use of EstimatesThe preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. On an ongoing basis, the Company evaluates its estimates and assumptions including investment in real estate, impairment assessments, investments, other-than-temporarily impairment assessments, retained interest investments, accruals and deferred income taxes. Actual results could differ from those estimates. Revenue RecognitionRevenues consist primarily of real estate sales, resorts, leisure and leasing operations, and timber sales. Taxes collected from customers and remitted to governmental authorities (e.g. sales tax) are excluded from revenues and costs and expenses.Real estate salesRevenues from real estate sales, including sales of homesites, commercial properties and rural or timberland, are recognized when a sale is closed and title transfers to the buyer, the buyer’s initial investment is adequate, any receivables are probable of collection, the usual risks and rewards of ownership have been transferred to the buyer, and the Company does not have significant continuing involvement with the real estate sold.The buyer’s minimum initial investment requirement is typically the receipt of cash for approximately twenty to twenty-five percent of the sales value depending on the type and use of the property purchased. If the minimum initial investment requirement is not met revenues may be deferred depending on the circumstances. In addition, revenue is not recognized until title transfers and any consideration received is deferred until title is transferred.Percentage-of-completion accounting, where revenue is recognized in proportion to the percentage of total costs incurred in relation to estimated total costs, is used for our homesite sales when required development is not complete at the time of sale and for commercial and other land sales if there are uncompleted development costs yet to be incurred for the property sold.As part of the purchase price consideration for a homesite from sales to homebuilders, the Company may receive a percentage of the sale price of the completed home if the home price or gross profit of the home exceeds a negotiated threshold. These lot residuals are recognized in revenue when consideration is received by the Company in periods subsequent to the initial recognition of revenue for the sale of the homesite. All costs related to the sale of the homesite, including any anticipated lot residual are recognized in the period of the initial sale of the homesite.Resorts, leisure and leasing revenuesResorts, leisure and leasing revenues include service and rental fees associated with the WaterColor Inn and the Company’s vacation rental programs in WaterColor Inn, WaterColor, WaterSound Beach and surrounding communities and other resort, golf club, marina and retail/commercial leasing operations. These revenues are generally recognized as services are provided. Vacation rental revenues include the entire rental fee collected from the customer, including the homeowner’s portion. A percentage of the fee is remitted to the homeowner and presented in cost of resorts, leisure and leasing operations. The Company is the principal in its vacation rental business and has determined that it is the primary obligor to the guest, as it has sole discretion in establishing prices and provides the majority of the services to the guest. Club membership revenues are recognized when billed to the member and the non-refundable initiation fee is deferred and recognized ratably over the estimated membership period. Operating revenues also consist of long term rental revenues from retail/commercial leasing operations, which are recognized as earned, using the straight-line method over the life of the lease. Certain leases provide for tenant occupancy during periods for which no rent is due or where minimum rent payments change during the lease term. Accordingly, a receivable or liability is recorded representing the difference between the straight-line rent and the rent that is contractually due from the tenant. Minimum future base rents on non-cancelable leases for the next five years are $5.6 million in 2015, $5.8 million in 2016, $5.7 million in 2017, $5.6 million in 2018, and $5.4 million in 2019.Forestry product salesRevenues from sales of forestry products are recognized generally on delivery of the product to the customer. Subsequent to the AgReserves Sale, the sale of the Company’s forestry products are primarily delivered under pay-as-cut sales contracts, which risk of loss and title to the trees transfer to the buyer when cut by the buyer. Under a pay-as-cut sales contract, the buyer or some other third party is responsible for all logging and hauling costs, if any. Comprehensive IncomeThe Company’s comprehensive income includes amounts due to the changes in the funded status of the Company’s pension plan and unrealized gains and temporary losses on available-for-sale securities.  Changes in the funded status of the Company’s pension plan were initially recognized in Other comprehensive income and are typically amortized into net income over a period of time or recognized at the time of a specific event, such as a curtailment of benefit plan obligations or the Pension Plan termination during 2014. See Note 18,Employee Benefit Plans.  Cash and Cash EquivalentsCash and cash equivalents include cash on hand, bank demand accounts and money market instruments having original maturities at acquisition date of ninety days or less. In addition, cash equivalents include certificates of deposit that are readily convertible to cash.InvestmentsInvestments consist of available-for-sale securities and are recorded at fair value, which is based on quoted market prices. Unrealized gains and temporary losses on investments, net of tax, are recorded in Other comprehensive income. Realized gains and losses are determined using the specific identification method. The Company evaluates investments classified as available-for-sale with unrealized losses to determine if they are other-than-temporary impaired. This evaluation is based on various factors, including the financial condition, business prospects, industry and creditworthiness of the issuer, severity and length of time the securities were in a loss position, the Company’s ability and intent to hold investments until unrealized losses are recovered or until maturity and amount of the unrealized loss. If a decline in fair value is considered other-than-temporary, the decline is then bifurcated into its credit and non-credit related components. The amount of the credit-related component is recognized in earnings, and the amount of the non-credit related component is recognized in other comprehensive loss, unless the Company intends to sell the security or it is more likely than not that the Company will be required to sell the security prior to its anticipated recovery. During 2014, the Company determined that certain unrealized losses were other than temporarily impaired and recorded an other-than-temporary impairment of $1.3 million related to credit-related losses in Investment income, net on the Company’s Consolidated Statements of Income. The non-credit component of $1.5 million was recorded in Accumulated other comprehensive loss as of December 31, 2014. As of December 31, 2013, the unrealized losses related to the Company’s corporate debt securities of $2.2 million were determined to be temporary. Notes ReceivableThe Company’s notes receivable are due from customers or homebuilders located within the United States. The Company evaluates the carrying value of notes receivable at each reporting date. Notes receivable balances are adjusted to net realizable value based upon a review of entity specific facts or when terms are modified. The Company maintains an allowance for doubtful accounts for estimated losses resulting from the inability of its customers to make required payments. The allowance for doubtful accounts is based on a review of specifically identified accounts in addition to an overall aging analysis. Judgments are made with respect to the collectability of accounts based on historical experience and current economic trends. Actual losses could differ from those estimates.Investment in Real EstateThe Company capitalizes costs directly associated with development and construction of identified real estate projects. The Company also capitalizes those indirect costs that relate to the projects under development or construction. These indirect costs include construction and development administration, legal fees, capitalized interest, and project administration to the extent that such costs are related to a specific project. Interest is capitalized (up to total interest expense) based on the amount of underlying expenditures and real estate taxes on real estate projects under development.Real estate development costs also include land and common development costs (such as roads, sewers and amenities), capitalized property taxes, capitalized interest and certain indirect costs. A portion of real estate inventory costs and estimates for costs to complete are allocated to each unit based on the relative sales value of each unit as compared to the estimated sales value of the total project. These estimates are reevaluated at least annually and more frequently if warranted by market conditions, changes in the project’s scope or other factors, with any adjustments being allocated prospectively to the remaining units available for sale.The capitalization period relating to direct and indirect project costs is the period in which activities necessary to ready a property for its intended use are in progress. The period begins when such activities commence, typically when the Company begins the entitlement processes for land already owned, and ends when the asset is substantially complete and ready for its intended use. Determination of when construction of a project is substantially complete and ready for its intended use requires judgment. The Company determines when the capitalization period begins and ends through communication with project and other managers responsible for the tracking and oversight of individual projects. In the event that the activities to ready the asset for its intended use are suspended, the capitalization period will cease until such activities are resumed. If the Company determines not to complete a project, any previously capitalized costs are expensed in the period in which the determination is made and recovery is not deemed reasonable. The Company has capitalized indirect development costs of $0.6 million, $0.7 million and less than $0.1 million during 2014, 2013 and 2012, respectively. These capitalized indirect development costs are primarily related to the consolidated joint venture at Pier Park North.Investment in real estate is carried at cost, net of depreciation and timber depletion, unless circumstances indicate that the carrying value of the assets may not be recoverable. If the Company determines that an impairment exists due to the inability to recover an asset’s carrying value, an impairment charge is recorded to the extent that the carrying value exceeds estimated fair value. If such assets were held for sale, the provision for loss would be recorded to the extent that the carrying value exceeds estimated fair value less costs to sell.Depreciation is computed on straight-line method over the useful lives of the assets ranging from five to forty years.Long-Lived AssetsThe Company reviews its long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Long-lived assets include the Company’s investments in operating and development property and property and equipment, net. Some of the events or changes in circumstances that are considered by the Company as indicators of potential impairment include:•a prolonged decrease in the fair value or demand for the Company’s properties;•a change in the expected use or development plans for the Company’s properties;•continuing operating or cash flow losses for an operating property; and,•an accumulation of costs in a development property to be held long-term above the amount originally expected.The Company uses varying methods to determine if impairment exists, such as (i) considering indicators of potential impairment, (ii) analyzing expected future cash flows and comparing the expected future undiscounted cash flows of the property to its carrying value or (iii) determining market resale values.For projects under development, an estimate of undiscounted future cash flows is performed using estimated future expenditures necessary to develop and maintain the existing project and using management’s best estimates about future sales prices and holding periods. The projection of undiscounted cash flows requires that management develop various assumptions including:•the projected pace of sales of homesites based on estimated market conditions and the Company’s development plans;•estimated pricing and projected price appreciation over time;•the amount and trajectory of price appreciation over the estimate selling period;•the length of the estimated development and selling periods, which can differ depending on the size of the development and the number of phases to be developed;•the amount of remaining development costs, including the extent of infrastructure or amenities included in such development costs;•holding costs to be incurred over the selling period;•for bulk land sales of undeveloped and developed parcels future pricing is based upon estimated developed lot pricing less estimated development costs and estimated developer profit;•for commercial development property, future pricing is based on sales of comparable property in similar markets; and•whether liquidity is available to fund continued development.For operating properties, an estimate of undiscounted cash flows also requires management to make assumptions about the use and disposition of such properties. These assumptions include: •for investments in inns and rental condominium units, average occupancy and room rates, revenues from food and beverage and other amenity operations, operating expenses and capital expenditures, and eventual disposition of such properties as private residence vacation units or condominiums, based on current prices for similar units appreciated to the expected sale date;•for investments in commercial or retail property, future occupancy and rental rates and the amount of proceeds to be realized upon eventual disposition of such property at a terminal capitalization rate; and,•for investments in golf courses, memberships, future rounds and greens fees, operating expenses and capital expenditures, and the amount of proceeds to be realized upon eventual disposition of such properties at a multiple of terminal year cash flows.    Homesites substantially completed and ready for sale are measured at the lower of carrying value or fair value less costs to sell. Management identifies homesites as being substantially completed and ready for sale when the properties are being actively marketed with intent to sell such properties in the near term and under current market conditions. Other homesites for which management does not intend to sell in the near term under current market conditions are evaluated for impairment based on management’s best estimate of the long-term use and eventual disposition of such property.Other properties that management does not intend to sell in the near term under current market conditions and has the ability to hold are evaluated for impairment based on management’s best estimate of the long-term use and eventual disposition of the property. The results of impairment analyses for development and operating properties are particularly dependent on the estimated holding and selling period for each asset group. If a property is considered impaired, the impairment charge is determined by the amount the property’s carrying value exceeds its fair value. We use varying methods to determine fair value, such as (i) analyzing expected future cash flows, (ii) determining resale values by market (iii) applying a capitalization rate to net operating income using prevailing rates in a given market or (iv) applying a multiplier to revenue using prevailing rates in a given market. The fair value of a property may be derived either from discounting projected cash flows at an appropriate discount rate, through appraisals of the underlying property, or a combination thereof.The Company classifies the assets and liabilities of a long-lived asset as held-for-sale when management approves and commits to a formal plan of sale and it is probable that a sale will be completed. The carrying value of the assets held-for-sale are then recorded at the lower of their carrying value or fair value less estimated costs to sell. Timber InventoryThe Company estimates its standing timber inventory on an annual basis utilizing a process referred to as a “timber cruise.” Specifically, the Company conducts field observations of the number of trees, tree height and tree diameter on a sample area equal to approximately 20% of our timber holdings each year. To estimate volume in areas that were not subject to field observations in the current year, the Company either uses prior timber cruise data and growth models to estimate the current inventory, or applies current timber cruise data from a portion of its timberlands to areas of similar species, age class and land productivity profile. The key assumptions in this process are annual growth models and volume formulas used to translate height and diameter information to volume measurements. The Company’s timber inventory estimates are updated to account for harvesting activities, timberland acquisitions and divestitures, biological growth, new timber cruise data and natural disturbances (e.g. fire, disease, or weather events), among other factors. Depletion of timber is determined by the units of production method, whereby capitalized timber costs are accumulated and expensed as units are sold.Property and Equipment, netProperty and equipment is stated at cost, net of accumulated depreciation. Major improvements are capitalized while maintenance and repairs are expensed in the period the cost is incurred. Depreciation is computed using the straight-line method over the useful lives of various assets, generally three to thirty years.Income TaxesThe Company follows the asset and liability method of accounting for deferred income taxes. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. The Company recognizes the effect of income tax positions only if those positions are more likely than not of being sustained. Recognized income tax positions are measured at the largest amount that is greater than fifty percent likely of being realized. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs. The Company records interest related to unrecognized tax benefits in interest expense and penalties in Other income.A valuation allowance is recorded if based on the weight of available evidence it is more likely than not that some portion or all of the deferred tax asset will not be realized. Realization of the Company’s deferred tax assets is dependent upon the Company generating sufficient taxable income in future years in the appropriate tax jurisdictions to obtain a benefit from the reversal of deductible temporary differences and from loss carryforwards. The Company records a valuation allowance based on the timing of reversal of existing taxable temporary differences and the Company’s history of losses and future expectations of reporting taxable losses, if management does not believe it met the requirements to realize the benefits of certain of its deferred tax assets. Concentration of Risks and UncertaintiesThe Company’s real estate investments are concentrated in Northwest Florida in a number of specific development projects. Uncertain economic conditions could have an adverse impact on the Company’s real estate values and could cause the Company to sell assets at depressed values in order to pay ongoing expenses.Financial instruments that potentially subject the Company to a concentration of credit risk consist of cash, cash equivalents, investments, notes receivable, investments held by special purpose entities, investments in retained interests and pledged securities held as collateral for payment of the in-substance defeased debt. The Company deposits and invests cash with a major financial institution in the United States, which balances exceed the amount of F.D.I.C. insurance provided on such deposits. As of December 31, 2014, the Company had $509.8 million invested in U.S. Treasury securities, $100.1 million invested in one issuer of corporate debt securities that is non-investment grade. In addition, a portion of the Company’s preferred stock investments of $23.7 million was issued by a financial services firm that is non-investment grade.Earnings Per ShareBasic earnings per share is calculated by dividing net income by the average number of common shares outstanding for the period. Diluted earnings per share is calculated by dividing net income by the weighted average number of common shares outstanding for the period, including all potentially dilutive shares issuable under outstanding stock options. Stock options are not considered in any diluted earnings per share calculation when the Company has a loss from operations. Non-vested restricted stock is included in outstanding shares at the time of grant. For the three years ended December 31, 2014 basic average shares outstanding were the same as diluted shares outstanding.Recently Adopted Accounting PronouncementsIncome TaxesIn July 2013, the Financial Accounting Standard Board (the “FASB”) determined that an unrecognized tax benefit should be presented as a reduction of a deferred tax asset for a net operating loss carryforward or other tax credit carryforward when settlement in this manner is available under applicable tax law. The Company adopted this guidance effective January 1, 2014, which reduced the Company’s Deferred tax asset and Accrued liabilities and deferred credits by $1.7 million.  The adoption of this guidance had no impact on the Company’s Consolidated Statements of Income, Consolidated Statements of Comprehensive Income or Statements of Cash Flows. Recently Issued Accounting PronouncementsDiscontinued OperationsIn April 2014, FASB issued an accounting standards update (“ASU”) that changes the criteria for reporting discontinued operations. Under the new guidance, only disposals representing a strategic shift in operations and have a major effect on the organization's operations and financial results should be presented as discontinued operations. In addition, this ASU expands disclosures about the discontinued operation and requires disclosures about disposals that do not qualify as discontinued operations. This guidance is to be applied prospectively and is effective for the Company beginning January 1, 2015. Early adoption is permitted, but only for disposals or classification as held for sale that have not already been reported in previously issued financial statements. The Company will adopt this ASU as of January 1, 2015. Revenue RecognitionIn May 2014, the FASB issued an ASU that establishes the principles used to recognize revenue for all entities. The new guidance is effective for annual and interim periods beginning after December 15, 2016, with no early adoption permitted. The Company is currently evaluating the impact that the adoption of this guidance will have on its financial position, results of operations and cash flows. |

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The entire disclosure for all significant accounting policies of the reporting entity.
+ References
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