Notes Receivable, Net (Parenthetical) (Detail) (USD $)	Mar. 31, 2013	Dec. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Deferred profit	$ 27,846,000	$ 27,962,000
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]
Unamortized discount	100,000	100,000
Note receivable, maturity date	2024-12	2024-12
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% | Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable, effective interest rate	5.73%	5.73%
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% | Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable, effective interest rate	8.00%	8.00%
Interest bearing builder note-4.0% at March 31, 2013, due February 2015, net of deferred profit of $ 0
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable, effective interest rate	4.00%
Note receivable, maturity date	2015-02
Deferred profit	$ 1,200,000