COMMITMENTS AND CONTINGENCIES (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2019 USD ($) condominium_tower housing_unit	Sep. 30, 2018 USD ($)	Sep. 30, 2019 USD ($) condominium_tower housing_unit	Sep. 30, 2018 USD ($)	Dec. 31, 2018 USD ($)
Lessor, Lease, Description [Line Items]
Outstanding letters of credit	$ 15,400,000		$ 15,400,000		$ 15,300,000
Amount of outstanding surety bonds	206,400,000		206,400,000		$ 101,200,000
Rent expense	$ 2,500,000	$ 2,400,000	$ 6,700,000	$ 7,300,000
Product liability contingency, third party recovery, percentage			20.00%
Number of open condominium towers | condominium_tower	4		4
Number of reserved housing units | housing_unit	375		375
Guarantee Obligations | Downtown Columbia
Lessor, Lease, Description [Line Items]
Loss contingency guaranteed amount limit	$ 1,000,000.0		$ 1,000,000.0