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STOCKHOLDERS' EQUITY - Narrative (Detail) - Jefferies LLC - At-The-Market Offering Agreement - USD ($) $ in Millions	1 Months Ended		3 Months Ended	6 Months Ended
	Jul. 31, 2021	Aug. 31, 2020	Jun. 30, 2021	Jun. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock offering program, maximum value		$ 150.0
Issuance of common stock under public offering, net of issuance costs (in shares)			770,465	1,805,227
Consideration received on transaction			$ 9.1	$ 24.7
Prepaid Expenses and Other Current Assets | Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Consideration received on transaction	$ 2.5

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