Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Name:	us-gaap_LongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Debt - Narrative (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Debt interest rate			4.80%
Debt	$ 54,206	$ 54,474
Total community development district debt	$ 22,100	22,500
Refinanced loan in the Pier Park North joint venture, due November 2025, bearing interest at 4.1% \| Consolidated variable interest entities
Debt Instrument [Line Items]
Debt interest rate	4.10%
Secured debt \| Community Development District debt, secured by certain real estate and standby note purchase agreements, due May 2031 - May 2039, bearing interest at 3.1% to 7.0% at June 30, 2016 and 2.8% to 7.0% at December 31, 2015
Debt Instrument [Line Items]
Debt	$ 6,668	$ 6,994