Significant Accounting Policies - Receivables (Details)	12 Months Ended
Dec. 31, 2020
Significant Accounting Policies
Receivables, write off period	90 days

Represents the write off period from when the receivables are determined uncollectable.

No definition available.

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