REAL ESTATE AND OTHER AFFILIATES (Relevant Financial Information) (Details) - The Summit - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Real Estate and Other Affiliates
Total Assets	$ 218.9	$ 166.9
Total Liabilities	144.6	118.9
Total Equity	74.3	48.0
Revenues	101.2	58.6	$ 79.8
Net income	36.3	23.2	43.5
Gross Margin	$ 41.9	$ 31.2	$ 47.1