Sale of Vacation Rental Management (Details) - PCR Rentals Sale - Disposed of by Sale	1 Months Ended
Dec. 31, 2017
Sale of business
Right of first refusal on third party offer to purchase, maximum period after date of sale	18 months
Right of first refusal on third party offer to purchase, minimum period after date of sale	9 months

The maximum period after the date of sale for right of first refusal on third party offer to purchase business, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

Name:	joe_DisposalGroupIncludingDiscontinuedOperationRightOfFirstRefusalToAPurchaseOfferPeriodOne
Namespace Prefix:	joe_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration