Notes Receivable, net (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable	$ 7,898	$ 3,975
Pier Park Community Development District notes, non-interest bearing, due December 2024, net of unamortized discount of $0.1 million, effective rates 5.73% — 8.0%
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable	2,582	2,758
Interest bearing homebuilder notes, secured by the real estate sold — 4.0% interest rate, annual principal payments of $0.3 million, balloon payment due February and August 2015, net of deferred profit of $1.0 million at September 30, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable	4,497	0
Notes receivable, number of note holders	1
Various mortgage notes, secured by certain real estate bearing interest at various rates
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable	$ 819	$ 1,217