CAPITAL STOCK, STOCK-BASED COMPENSATION AND BENEFIT PLAN - Additional Information (Details)						3 Months Ended			9 Months Ended
	Apr. 07, 2022 USD ($)	Mar. 01, 2022 USD ($)	Feb. 25, 2021 USD ($)	Mar. 12, 2020 USD ($)	Jun. 06, 2019 USD ($) shares	Sep. 30, 2023 USD ($) $ / shares shares	Sep. 30, 2022 USD ($) shares	Mar. 31, 2022 USD ($) shares	Sep. 30, 2023 USD ($) installment executiveOfficer $ / shares shares	Sep. 30, 2022 USD ($) shares	Jun. 30, 2023 shares	Mar. 31, 2023 shares	Dec. 31, 2022 $ / shares shares	Jun. 30, 2022 shares	Dec. 31, 2021 shares	Jun. 04, 2020 shares
Class of Stock [Line Items]
Common stock, authorized (in shares)						350,000,000			350,000,000				350,000,000			175,000,000
Common stock, par value (in dollars per share) | $ / shares						$ 0.00001			$ 0.00001				$ 0.00001
Common stock, issued (in shares)						188,313,807			188,313,807				184,135,714
Common stock, outstanding (in shares)						188,313,807			188,313,807				184,135,714
Preferred stock, authorized (in shares)						25,000,000			25,000,000				25,000,000
Preferred stock, par value (in dollars per share) | $ / shares						$ 0.00001			$ 0.00001				$ 0.00001
Preferred stock, issued (in shares)						0			0				0
Preferred stock, outstanding (in shares)						0			0				0
Proceeds from issuance of common stock, net of issuance costs | $									$ 0	$ 7,122,000
Stock-based compensation expense | $						$ 1,824,000	$ 3,355,000		$ 7,803,000	$ 14,808,000
Number of shares granted									4,143,813
Number of shares outstanding						14,614,113			14,614,113				11,775,411
Open Market Sale Agreement, Authorized April 2022 | Maximum
Class of Stock [Line Items]
Common stock sales agreement amount | $	$ 26,000,000
At The Market Equity Offering Program Authorized February 2021 | Maximum
Class of Stock [Line Items]
Common stock sales agreement amount | $			$ 100,000,000
At The Market Equity Offering Program Authorized March 2022 | Maximum
Class of Stock [Line Items]
Common stock sales agreement amount | $		$ 25,300,000
Share-based Payment Arrangement, Option
Class of Stock [Line Items]
Expiration period									10 years
Share-based Payment Arrangement, Option | Maximum
Class of Stock [Line Items]
Vesting period									48 months
Share-based Payment Arrangement, Option | Minimum
Class of Stock [Line Items]
Vesting period									12 months
Share-based Payment Arrangement, Option | Share-based Compensation Award, Tranche, First Anniversary of Grant Date
Class of Stock [Line Items]
Vesting percentage									100.00%
Share-based Payment Arrangement, Option | Share Based Compensation Award Tranche One
Class of Stock [Line Items]
Vesting period									1 year
Vesting percentage									25.00%
Share-based Payment Arrangement, Option | Share Based Compensation Award Tranche Two
Class of Stock [Line Items]
Vesting period									1 year
Number of equal quarterly installments | installment									12
Stock Appreciation Rights (SARs)
Class of Stock [Line Items]
Expiration period									10 years
Stock Appreciation Rights (SARs) | Maximum
Class of Stock [Line Items]
Vesting period									48 months
Stock Appreciation Rights (SARs) | Minimum
Class of Stock [Line Items]
Vesting period									12 months
Stock Appreciation Rights (SARs) | Share-based Compensation Award, Tranche, First Anniversary of Grant Date
Class of Stock [Line Items]
Vesting percentage									100.00%
Stock Appreciation Rights (SARs) | Share Based Compensation Award Tranche One
Class of Stock [Line Items]
Vesting period									1 year
Vesting percentage									25.00%
Stock Appreciation Rights (SARs) | Share Based Compensation Award Tranche Two
Class of Stock [Line Items]
Vesting period									1 year
Number of equal quarterly installments | installment									12
Inducement Award Program
Class of Stock [Line Items]
Number of shares granted									704,000
Number of shares outstanding						701,000			701,000
Service-Based Restricted Stock Units
Class of Stock [Line Items]
Unrecognized compensation costs | $						$ 4,000,000			$ 4,000,000
Unrecognized compensation costs, period for recognition									1 year 9 months
Service-Based Restricted Stock Units | Share-based Compensation Award, Tranche, First Anniversary of Grant Date
Class of Stock [Line Items]
Vesting period									1 year
Vesting percentage									100.00%
Service-Based Restricted Stock Units | Share Based Compensation Award Tranche One
Class of Stock [Line Items]
Vesting period									1 year
Vesting percentage									50.00%
Service-Based Restricted Stock Units | Share Based Compensation Award Tranche Two
Class of Stock [Line Items]
Vesting period									6 months
Vesting percentage									25.00%
Award vesting grace period									1 year
Service-Based Restricted Stock Units | Share-Based Payment Arrangement, Tranche One, First Anniversary After Grant Date, Subjected To Individual Continued Service
Class of Stock [Line Items]
Vesting period									1 year
Vesting percentage									33.33%
Service-Based Restricted Stock Units | Share-Based Payment Arrangement, Tranche Two, Second Anniversary After Grant Date, Subjected To Individual Continued Service
Class of Stock [Line Items]
Vesting period									2 years
Vesting percentage									33.33%
Service-Based Restricted Stock Units | Share-Based Payment Arrangement, Tranche Three, Third Anniversary After Grant Date, Subjected To Individual Continued Service
Class of Stock [Line Items]
Vesting period									3 years
Vesting percentage									33.33%
Service-Based Restricted Stock Units | Share-Based Payment Arrangement, Tranche One, First Anniversary After Grant Date
Class of Stock [Line Items]
Vesting period									1 year
Vesting percentage									33.33%
Service-Based Restricted Stock Units | Share-Based Payment Arrangement, Tranche Two, Following First Anniversary After Grant Date
Class of Stock [Line Items]
Vesting period									2 years
Vesting percentage									66.67%
Award vesting grace period									1 year
Common Stock
Class of Stock [Line Items]
Common stock, outstanding (in shares)						188,313,807	183,951,583	183,386,035	188,313,807	183,951,583	188,128,869	185,835,946	184,135,714	183,704,654	177,000,963
Issuance of common stock, net of issuance costs (in shares)								4,404,600
Common Stock | At The Market Equity Offering Program Authorized March 2022
Class of Stock [Line Items]
Issuance of common stock, net of issuance costs (in shares)								404,600
Proceeds from issuance of common stock, net of issuance costs | $								$ 800,000
At The Market Equity Offering Program | Maximum
Class of Stock [Line Items]
Common stock sales agreement amount | $				$ 65,000,000
Stock Incentive Plans, 2023 And 2014
Class of Stock [Line Items]
Grant date fair value of stock options not in connection with the annual grant process | $									$ 1,200,000
2023 Stock Incentive Plan
Class of Stock [Line Items]
Stock options, vested in period, fair value | $									$ 5,300,000
2023 Stock Incentive Plan | Share-based Payment Arrangement, Option | Director
Class of Stock [Line Items]
Number of shares granted									315,000
2023 Stock Incentive Plan | Inducement Award Program
Class of Stock [Line Items]
Number of shares outstanding						653,000			653,000
2023 Stock Incentive Plan | Performance Based Stock Options
Class of Stock [Line Items]
Number of shares granted									0
2014 Stock Incentive Plan | Share-based Payment Arrangement, Option | Employees
Class of Stock [Line Items]
Number of shares granted									2,489,500
2014 Stock Incentive Plan | Stock Appreciation Rights (SARs)
Class of Stock [Line Items]
Number of executives shares granted to | executiveOfficer									1
2014 Stock Incentive Plan | Stock Appreciation Rights (SARs) | Executive Officer
Class of Stock [Line Items]
Number of shares granted									635,313
2014 Stock Incentive Plan | Inducement Award Program
Class of Stock [Line Items]
Number of shares outstanding						2,035,832			2,035,832
2014 Stock Incentive Plan | Performance Based Stock Options
Class of Stock [Line Items]
Number of shares granted									0
2014 Employee Stock Purchase Plan
Class of Stock [Line Items]
Purchase price at the end of offering period					85.00%
Offering period					6 months
Maximum employee subscription rate					15.00%
Maximum employee subscription amount | $					$ 25,000
Maximum number of shares per employee in any offering period					1,500
Common stock, reserved for future issuance (in shares)						4,637,801			4,637,801
Number of shares issued									200,194