STOCKHOLDERS' EQUITY - EQUITY PLANS (Details) - USD ($)		1 Months Ended			12 Months Ended
	Dec. 31, 2018	May 31, 2023	May 31, 2022	May 31, 2021	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Jan. 01, 2025	Oct. 31, 2018	May 15, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, shares reserved for future issuance (in shares)					171,371,369
Shares available for grant					34,309,969	58,750,670
Aggregate Intrinsic Value - Options Outstanding
Closing stock price (in dollars per share)					$ 3.54
Total pretax intrinsic value of stock options exercised (in dollars)					$ 41,200,000	$ 12,000,000	$ 800,000
Cash received from exercise of stock options (in dollars)					$ 31.6	$ 12.4	$ 1.8
Number of Shares - Options Outstanding
Stock options exercisable at the end of the period (in shares)					37,943,520	39,995,642	36,085,389
Weighted Average Exercise Price Per Share - Options Outstanding
Stock options exercisable at the end of the period (in dollars per share)					$ 2.06	$ 2.16	$ 2.17
2011 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period of stock options					4 years
2011 Plan | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expiration term of stock options from date of grant					10 years
2018 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period of stock options					4 years
Common stock, shares reserved for future issuance (in shares)					81,447,090					10,000,000
Minimum percentage of ownership required for granting stock options at least 110% of fair market value of common stock					10.00%
Minimum exercise price as a percentage of fair market value for employees having more than 10 % outstanding common stock					110.00%
Maximum expiration term of stock options granted to employees having more than 10 % outstanding common stock					5 years
Common stock, increase in shares reserved for future issuance (in shares)		43,360,000	11,000,000	12,500,000
Shares available for grant					32,587,928
2018 Plan | First Director Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period of stock options					3 years
Stock options to be granted to purchase shares upon appointment (shares)					270,000
2018 Plan | Subsequent Director Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options to be granted to purchase shares (in shares)					180,000
2018 Plan | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expiration term of stock options from date of grant					10 years
2018 Inducement Award Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, shares reserved for future issuance (in shares)	3,000,000				27,959,342
Common stock, increase in shares reserved for future issuance (in shares)	40,300,000				5,300,000
Shares available for grant					851,137
2018 Inducement Award Plan | Subsequent Event
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, shares reserved for future issuance (in shares)								40,300,000
Directors Market Value Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, shares reserved for future issuance (in shares)									1,000,000
Directors Market Value Stock Purchase Plan | Restricted stock awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares issued (in shares)					8,351	36,864	15,962
Weighted average grant date fair value (in dollars per share)					$ 3.84	$ 2.37	$ 1.92
Total fair value of restricted stock that vested					$ 32,079	$ 85,400	$ 29,000