BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) $ in Millions		3 Months Ended	6 Months Ended	12 Months Ended
	Nov. 04, 2019 shares	Jun. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)	Dec. 31, 2019 USD ($) affiliate	Nov. 03, 2019 shares
Transactions with Affiliates
Number of affiliates | affiliate				3
Blackstone
Transactions with Affiliates
Expenses incurred for services from subsidiaries | $		$ 0.3	$ 1.0
Blackstone | Legal Costs For Blackstone Affiliates Public Offering Transaction
Transactions with Affiliates
Expenses incurred for services from subsidiaries | $				$ 0.3
Blackstone | Blackstone
Transactions with Affiliates
Beneficial ownership (in shares)					6,899,027
Number of shares of common stock sold (in shares)	6,864,545
Blackstone | Gregg S. Ribatt
Transactions with Affiliates
Number of shares of common stock sold (in shares)	34,482