Debt (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Dec. 31, 2007
Debt Instrument [Line Items]
Long term debt	$ 66,487	$ 63,804
In-substance defeased debt, interest payable at 5.62%, secured and paid by pledged treasury securities, due October 1, 2015
Debt Instrument [Line Items]
Long term debt	25,512	25,670	29,300
Community Development District debt, secured by certain real estate and standby note purchase agreements, due through May 2039, interest payable at 2.25% to 7.0% | Community Development District debt, secured by certain real estate and standby note purchase agreements, due through May 2039, interest payable at 2.25% to 7.0%
Debt Instrument [Line Items]
Long term debt	7,186	6,516
Construction loan in the Pier Park North joint venture, due February 2016, bearing interest at LIBOR plus 210 basis points, or 2.27% and 2.26% at March 31, 2015 and December 31, 2014, respectively | Pier Park North Joint Venture Construction Loan
Debt Instrument [Line Items]
Long term debt	$ 33,789	$ 31,618