BUSINESS DESCRIPTION & SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Searchlight investment (Details) - Investment Agreement - Searchlight - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Sep. 13, 2020
Forecast
Schedule of Investments [Line Items]
Capital commitment	$ 75.0
Percentage of company stock on as converted basis	35.00%
Subordinated Debt | Maximum
Schedule of Investments [Line Items]
Capital commitment		$ 425.0