Commitments and Contingencies - Additional Information (Details) - USD ($)		3 Months Ended	9 Months Ended
	Oct. 27, 2015	Sep. 30, 2015	Sep. 30, 2015	Oct. 31, 2015	Jun. 30, 2015	Dec. 31, 2014	Feb. 28, 2013
Commitments and Contingencies Disclosure [Abstract]
Environmental liabilities		$ 1,400,000	$ 1,400,000			$ 1,400,000
Liability For Potential Settlement Of Ongoing SEC Investigation		3,500,000	3,500,000		$ 3,500,000
Legal Fees		500,000	4,400,000
Guarantor Obligations [Line Items]
Purchase obligations, total		3,100,000	3,100,000
Purchase obligations, 2015		1,300,000	1,300,000
Purchase obligations, 2016		900,000	900,000
Purchase obligations, 2017 and thereafter		900,000	900,000
Tax Year 2022 To 2024
Guarantor Obligations [Line Items]
Deferred Tax Liabilities, Gross		61,800,000	61,800,000
Tax Year 2029
Guarantor Obligations [Line Items]
Deferred Tax Liabilities, Gross		69,300,000	69,300,000
Pier Park North | Consolidated Variable Interest Entities
Guarantor Obligations [Line Items]
Construction loan							$ 41,000,000
Net worth							$ 350,000,000
Surety bonds | Certain development projects
Guarantor Obligations [Line Items]
Commitment obligations		$ 8,400,000	$ 8,400,000			$ 8,300,000
Subsequent Event
Guarantor Obligations [Line Items]
Litigation Settlement, Amount	$ 2,750,000
Subsequent Event | Pier Park North | Pier Park North Joint Venture Construction Loan | Consolidated Variable Interest Entities
Guarantor Obligations [Line Items]
Construction loan				$ 48,200,000
Net worth				$ 36,000,000