COMMITMENTS AND CONTINGENCIES (Summary of South Street Seaport Contingencies) (Details) - USD ($)		12 Months Ended		39 Months Ended
	Jun. 27, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015
Commitments
Pre-tax gain recognized in Other (income)/expense		$ 300,000
South Street Seaport Ground Lease
Commitments
Annual fixed rent	$ 1,200,000
Annual rent escalation rate (as a percent)	3.00%
Additional annual rent payments to be made through the term of the lease	$ 210,000
Rent credit to be received		$ 1,500,000		$ 1,500,000
Maximum period for rent credit		30 months
Damage Due to Flooding
Commitments
Insurance recoveries collected				$ 47,900,000
Pre-tax gain recognized in Other (income)/expense		$ 300,000	$ 24,600,000