Real Estate Joint Ventures - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Oct. 31, 2016	Dec. 31, 2015	Oct. 31, 2015
Variable Interest Entity [Line Items]
Letters of credit outstanding	$ 400		$ 400			$ 500
Net income (loss)	2,696	$ 2,758	12,830	$ 771
Statements Of Operations
Variable Interest Entity [Line Items]
Net income (loss)	(200)	$ (400)	(500)	$ (1,600)
Pier Park North | Consolidated variable interest entities | Refinanced Loan in the Pier Park North joint venture, due November 2025, bearing interest at 4.1%
Variable Interest Entity [Line Items]
Construction loan							$ 48,200
Letters of credit outstanding	$ 6,600		$ 6,600				$ 6,600
Artisan Park, L.L.C | Consolidated variable interest entities
Variable Interest Entity [Line Items]
Percentage of cash contribution for joint venture by parent	74.00%		74.00%
Subsequent Event | Pier Park North | Consolidated variable interest entities | Refinanced Loan in the Pier Park North joint venture, due November 2025, bearing interest at 4.1%
Variable Interest Entity [Line Items]
Letters of credit outstanding					$ 1,300