STOCK-BASED COMPENSATION - (Additional Information) (Detail) $ / shares in Units, $ in Millions		3 Months Ended				12 Months Ended
	Mar. 01, 2024	Dec. 31, 2025 $ / shares ៛ / shares shares	Sep. 30, 2024 ៛ / shares shares	Sep. 30, 2023 shares	Jun. 30, 2023 shares	Dec. 31, 2025 ៛ / shares shares	Dec. 31, 2024 ៛ / shares shares	Dec. 31, 2023 shares	Dec. 31, 2025 USD ($) $ / shares shares	Dec. 31, 2024 USD ($) $ / shares shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock reserved for future issuance									30,350,000
Restricted Stock Units Time Based [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
Weighted average fair value of the RSUs granted | ៛ / shares		៛ 0.9				៛ 0.9	៛ 0.68
Stock granted for service								150,000
Granted		200,000				735,000	8,612,553
Share based compensation other than option grant date fair value | $ / shares		៛ 1.01
Number of PSUs outstanding								3,530,564	8,181,585	10,260,791
Performance-Based Restricted Share Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of PSUs outstanding			2,866,667							45,177
Performance-Based Restricted Share Units [Member] | Shares Issuable on Debetutres 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							1,800,000
Performance-Based Restricted Share Units [Member] | 2021 PRSUs [ Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
% of PRSUs vesting	66.70%
Deferred Share Units ("DSUs") [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Granted						1,013,209	1,689,028
Deferred Compensation Liability, Current and Noncurrent | $									$ 0.5	$ 0.7
Number of PSUs outstanding								3,086,172	3,464,988	4,033,894
Securities excluded from calculation of net income (loss) per share						2,300,000	2,000,000	1,800,000
Deferred Share Units ("DSUs") [Member] | Shares Issuable on Debetutres Principal Amount Settled in Common Shares [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Securities included from calculation of net income (loss) per share							45,100,000
Deferred Share Units ("DSUs") [Member] | Granted under the 2024 LITP [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Deferred Compensation Liability, Current and Noncurrent | $									$ 0.2	$ 0.0
Deferred Share Units ("DSUs") [Member] | Director [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Granted						300,000	0
Performance Share Units ("PSUs") [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Granted						1,262,000
Vesting term					Dec. 31, 2026
Number of options, Forfeited				738,553		1,845,608
Number of PSUs outstanding								1,845,608	2,597,608	1,845,608
Securities excluded from calculation of net income (loss) per share						0		1,800,000
Performance Share Units ("PSUs") [Member] | Shares Issuable on Debetutres 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						1,800,000	200,000
Securities included from calculation of net income (loss) per share							2,000,000
Performance Share Units ("PSUs") [Member] | Chief Transformation Officer [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Granted						20,000,000
Number of options, Forfeited						600,000
Stock options granted		752,000
Performance Share Units ("PSUs") [Member] | Employees [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share based compensation other than option grant date fair value | $ / shares		៛ 1.85
Stock options granted		510,000
Performance Share Units ("PSUs") [Member] | Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Performance period date					Jan. 01, 2023
% of PRSUs vesting					100.00%
Stock options granted					2,584,161
Performance Share Units ("PSUs") [Member] | Median [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
% of PRSUs vesting					160.00%
Performance Share Units ("PSUs") [Member] | Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Performance period date					Dec. 31, 2026
% of PRSUs vesting					190.00%
Stock options granted					4,909,907
New Deferred Share Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Deferred Compensation Liability, Current and Noncurrent | $									$ 1.4	$ 1.3
New Deferred Share Units [Member] | Shares Issuable on Debetutres 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						2,300,000		1,800,000
New Deferred Share Units [Member] | Granted under the 2024 LITP [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted average fair value of the RSUs granted | (per share)		៛ 0.89				៛ 0.89	៛ 0.69		$ 0.64	$ 0.5
Granted						1,200,000	0
Deferred Compensation Liability, Current and Noncurrent | $									$ 0.6	$ 0.0
Employee Stock Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of options, Forfeited							2,000
Employee Stock Option | Shares Issuable on Debetutres 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						0		200,000
Restricted Share Units ("RSUs") [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Additional shares issued			5
Granted			975,000
Options granted weighted average grant date fair value | ៛ / shares			៛ 0.75
Number of PSUs outstanding								64,029	0	45,177
Securities excluded from calculation of net income (loss) per share						5,500,000	2,300,000	3,600,000
Restricted Share Units ("RSUs") [Member] | Shares Issuable on Debetutres 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						5,500,000	200,000	3,600,000
Securities included from calculation of net income (loss) per share							2,300,000
Shares Issuable on Principal Amount Settled in Common Shares [Member] | Shares Issuable on Debetutres 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						34,500,000		156,800,000
Equity Settled Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Securities excluded from calculation of net income (loss) per share						34,500,000	45,100,000	156,800,000