v3.25.4

Income Taxes - Additional Information (Detail) - USD ($)	1 Months Ended			12 Months Ended
	Oct. 31, 2025	Jun. 30, 2024	Aug. 31, 2004	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Taxes [Line Items]
Effective tax rate (as a percent)				21.00%	21.00%	21.00%
Deferred tax liabilities, identifiable intangible assets				$ 74,793,000	$ 0
Valuation allowance of deferred tax assets				708,887,000	694,369,000	$ 698,228,000	$ 705,034,000
Valuation allowance				14,518,000	(3,859,000)	(6,806,000)
Deferred income tax expense (benefit)				(12,583,000)	15,302,000	(190,000)
Federal operating loss carryforwards				2,200,000,000
State operating loss carryforwards				1,500,000,000
Federal operation loss carryforwards, not subject to expiration				$ 520,500,000
Deferred tax assets, operating loss carryforwards, begin to expire				2026
Operating loss carryforwards, limitations on use				Pursuant to IRC Sections 382 and 383, annual use of the Company’s federal and certain state net operating losses and research and development credit carryforwards may be limited in the event that a cumulative change in ownership of more than 50% occurs within a three-year period.
Net operating loss carryforwards			$ 105,800,000
Net operating loss and credit carryforwards, annual use limitation			$ 13,000,000
Tax credit carryforwards research and development credits federal				$ 59,500,000
Tax credit carryforwards research and development credits state				24,500,000
Unrecognized income tax interest and penalties				$ 0	$ 0	$ 0
scPharmaceuticals Inc.
Income Taxes [Line Items]
Deferred tax liabilities, identifiable intangible assets	$ 323,600,000
Valuation allowance	(5,000,000)
Deferred income tax expense (benefit)	$ (5,000,000)
Federal
Income Taxes [Line Items]
Research and development credits begin to expire				2026
Senate Bills 167 \| California
Income Taxes [Line Items]
Net operating losses		$ 5,000,000
Tax years		2024 2025 2026
Senate Bills 175 \| California
Income Taxes [Line Items]
Tax years		2025 2026

Deferred tax assets, operating loss carryforwards, begin to expire.

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Tax credit carryforwards research and development credits state

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Amount of deferred federal tax expense (benefit) attributable to income (loss) from continuing operations. Includes, but is not limited to, deferred national tax expense (benefit) for non-US (United States of America) jurisdiction.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible domestic operating loss carryforwards. Excludes state and local operating loss carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards that are not subject to expiration dates.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible state and local operating loss carryforwards.

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Tax year that remains open to examination under enacted tax laws, in YYYY format.

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Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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MANNKIND CORP 10-K