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STOCK-BASED COMPENSATION - (Additional Information) (Detail) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended			12 Months Ended
	Sep. 30, 2022 $ / shares shares	Sep. 30, 2021 $ / shares shares	Sep. 30, 2022 $ / shares shares	Sep. 30, 2022 $ / shares $ / shares shares	Sep. 30, 2021 $ / shares shares	Dec. 31, 2021 USD ($) $ / shares	Sep. 30, 2022 USD ($)	May 31, 2020 shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock reserved for future issuance								5,850,000
Securities excluded from calculation of net income (loss) per share	1,500,000	4,700,000	1,500,000	1,500,000	4,700,000
Restricted Stock Units Time Based
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, award requisite service period			3 years	3 years
Weighted average fair value of the RSUs granted \| $ / shares	$ 2.49	$ 3.14	$ 2.49	$ 2.49	$ 3.14
Share Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share based compensation other than option grant date fair value \| (per share)			$ 2.40	$ 1.88
Share-Based Compensation Arrangement by Share-Based Payment Award, Maximum Number of Shares			1.2	1.2
Deferred Share Units ("DSUs") [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Deferred Compensation Liability, Current and Noncurrent \| $						$ 0.8	$ 0.3
Shares Issuable on Principal Amount Settled in Common Shares [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Securities excluded from calculation of net income (loss) per share	127,500,000	10,300,000	127,500,000	127,500,000	10,300,000
Performance Based Restricted Stock Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, award requisite service period			3 years	3 years
Performance Based Restricted Stock Units [Member] \| 2022 PRSUs [ Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
% of PRSUs vesting			0.00%	0.00%
Performance Based Restricted Stock Units [Member] \| 2021 PRSUs [ Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
% of PRSUs vesting					66.70%
Performance Based Restricted Stock Units [Member] \| Monte Carlo Valuation Method [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share based compensation other than option grant date fair value \| $ / shares			$ 1.87			$ 3.27
RSUs and PRSUs [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Securities excluded from calculation of net income (loss) per share	2,800,000	4,400,000	2,800,000	2,800,000	4,400,000