Debt - Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Apr. 30, 2014
Debt Instrument [Line Items]
Long term debt	$ 55,040	$ 54,474
Debt interest rate			4.75%
Total Community Development District debt	$ 22,600	22,500
Consolidated Variable Interest Entities | Pier Park North Joint Venture Refinanced Construction Loan
Debt Instrument [Line Items]
Debt interest rate	4.10%
Construction loan | Pier Park North Joint Venture Refinanced Construction Loan
Debt Instrument [Line Items]
Long term debt	$ 47,519	$ 47,480
Construction loan | Consolidated Variable Interest Entities | Pier Park North Joint Venture Refinanced Construction Loan
Debt Instrument [Line Items]
Debt interest rate	4.10%	4.10%
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]
Long term debt	$ 7,521	$ 6,994