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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Period over which debt instrument is subject to interest payments only, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

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Data Type:	xbrli:durationItemType
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Period Type:	duration

Prepayment premium, as a percent of principal prepaid, due upon prepayment to the lender during specified period under the terms of the agreement.

No definition available.

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Number of units financed.

No definition available.

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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

Face (par) amount of debt instrument at time of issuance.

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Period Type:	instant

Amount of the fee that accompanies borrowing money under the debt instrument.

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Period Type:	instant

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

Fixed interest rate related to the interest rate derivative.

No definition available.

Name:	us-gaap_DerivativeFixedInterestRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Nominal or face amount used to calculate payment on derivative.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

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Name:	us-gaap_DebtInstrumentAxis=joe_ConstructionLoanDueMarch2027Member
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Data Type:	na
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Name:	us-gaap_DebtInstrumentAxis=joe_LoanInPierParkCrossingsJvDueJune2060Member
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Name:	srt_RangeAxis=srt_MinimumMember
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Data Type:	na
Balance Type:
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Name:	srt_StatementScenarioAxis=srt_ScenarioForecastMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	srt_RangeAxis=srt_MaximumMember
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Balance Type:
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Name:	us-gaap_DebtInstrumentAxis=joe_ConstructionLoanDueFebruary2029Member
Namespace Prefix:
Data Type:	na
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Name:	us-gaap_DebtInstrumentAxis=joe_BeachHomesLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	us-gaap_DebtInstrumentAxis=joe_OriginsCrossingsJvLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	us-gaap_DebtInstrumentAxis=joe_WatercrestJvLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	us-gaap_DebtInstrumentAxis=joe_BeckrichBuildingIiiLoanMember
Namespace Prefix:
Data Type:	na
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