COMMITMENTS AND CONTINGENCIES (Details) - USD ($)			9 Months Ended
	Jun. 27, 2013	Jun. 27, 2013	Sep. 30, 2015	Dec. 31, 2014
Commitments
Letters of Credit and Surety Bonds Outstanding Amount			$ 77,000,000	$ 53,700,000
South Street Seaport Ground Lease
Commitments
Annual fixed rent	$ 1,200,000	$ 1,200,000
Annual rent escalation rate (as a percent)	3.00%	3.00%
Additional annual rent payments to be made through the term of the lease	$ 210,000	$ 210,000
Rent credit to be received			$ 1,500,000
Maximum period for rent credit			30 months