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Vesting Term

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements. Represents currently earned compensation under compensation arrangements that is not actually paid until a later date.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Net number of non-option equity instruments granted to participants.

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Price of a single share of a number of saleable stocks of a company.

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Percentage of vesting of award under share-based payment arrangement.

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Value of forfeited shares granted under share-based payment arrangement. Excludes employee stock ownership plan (ESOP).

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STOCK-BASED COMPENSATION - (Additional Information) (Detail) $ / shares in Units, $ in Millions	1 Months Ended	3 Months Ended					12 Months Ended
	Mar. 31, 2024	Mar. 31, 2026 USD ($) $ / shares shares	Dec. 31, 2025 USD ($) shares	Mar. 31, 2025 ៛ / shares shares	Sep. 30, 2023 shares	Jun. 30, 2023 shares	Dec. 31, 2025 USD ($) shares	Mar. 31, 2026 ៛ / shares	Mar. 31, 2025 $ / shares shares	Dec. 31, 2024 shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock reserved for future issuance		30,350,000
Granted		0
Vesting term						Dec. 31, 2026
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
Granted		0		0
Number of PSUs outstanding		4,870,788	8,181,585	9,843,149			8,181,585		9,843,149	10,260,791
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		258,254		247,277
Number of PSUs outstanding		3,723,242	3,464,988	4,281,171			3,464,988		4,281,171	4,033,894
Deferred Compensation Liability, Current and Noncurrent \| $		$ 0.4	$ 0.5				$ 0.5
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 excluded from calculation of net income (loss) per share		2,800,000		3,000,000
New Deferred Share Units ("DSUs") [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Deferred Compensation Liability, Current and Noncurrent \| $		$ 1.5	$ 1.4				$ 1.4
New Deferred Share Units ("DSUs") [Member] \| Granted Under The 2024 LTIP
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted average fair value of the RSUs granted \| (per share)		$ 0.55		៛ 1.04				៛ 0.77	$ 0.73
Performance Share Units ("PSUs") [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Granted		0		0
Number of options, Forfeited		922,804			738,553
Number of PSUs outstanding		1,674,804	2,597,608	1,845,608			2,597,608		1,845,608	1,845,608
Options, Grants in Period			752,000
Performance Share Units ("PSUs") [Member] \| Chief Transformation Officer [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares Granted, Value, Share-Based Payment Arrangement, Forfeited \| $		$ 0.6					$ 0.6
Performance Share Units ("PSUs") [Member] \| Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
% of PRSUs vesting						190.00%
Options, Grants in Period						4,909,907
Performance period date						Dec. 31, 2026
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] \| Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
% of PRSUs vesting						100.00%
Options, Grants in Period						2,584,161
Performance period date						Jan. 01, 2023
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
Restricted Share Units ("RSUs") [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Granted				0
Number of PSUs outstanding										45,177
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		1,100,000		6,600,000
Convertible Debt Securities [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		18,100,000		31,400,000