Debt - Descriptors (Details)	Dec. 31, 2016	Dec. 31, 2015	Apr. 30, 2014
Debt Instrument [Line Items]
Debt interest rate			4.75%
Consolidated Variable Interest Entities | Refinanced Loan in the Pier Park North JV, due November 2025, bearing interest at 4.1%
Debt Instrument [Line Items]
Debt interest rate	4.10%
Consolidated Variable Interest Entities | Construction loan | Refinanced Loan in the Pier Park North JV, due November 2025, bearing interest at 4.1%
Debt Instrument [Line Items]
Debt interest rate	4.10%	4.10%
Maximum | Secured debt | Community Development District debt, secured by certain real estate and standby note purchase agreements, due May 2016 — May 2039, bearing interest at 2.8% to 7.0%
Debt Instrument [Line Items]
Debt interest rate	7.00%	2.80%
Minimum | Secured debt | Community Development District debt, secured by certain real estate and standby note purchase agreements, due May 2016 — May 2039, bearing interest at 2.8% to 7.0%
Debt Instrument [Line Items]
Debt interest rate	3.40%	7.00%