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- Definition

Financing liability.

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Initial transaction Price.

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License agreement expiration term.

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- Definition

Milestone payments.

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Number of pediatricians

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Performance based bonus payments percentage.

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Regulatory and commercial milestones payments.

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Regulatory and Commercial sales milestones.

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Regulatory milestone payment.

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Sales-Based Milestones.

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Threshold percentage of value change in equity securities.

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Upfront Payment.

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Upfront payment and achievement of regulatory and commercial milestones.

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Description of rights and obligations under the collaborative arrangements.

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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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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as noncurrent.

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Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Period covered by the long-term purchase commitment, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of expenses incurred but not yet paid classified as other, due after one year or the normal operating cycle, if longer.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

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The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.

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Collaboration, Out-Licensing and Related Agreements - Additional Information (Detail) $ in Thousands, € in Millions		1 Months Ended													3 Months Ended		10 Months Ended	12 Months Ended
	Nov. 09, 2024	Jun. 30, 2025 USD ($)	Jun. 30, 2025 EUR (€)	May 31, 2025 Doctor	Nov. 30, 2024 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2024 EUR (€)	Mar. 31, 2024 USD ($)	Feb. 28, 2023 USD ($)	Feb. 28, 2023 EUR (€)	Mar. 31, 2021 USD ($)	Sep. 30, 2020 EUR (€)	Apr. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Mar. 31, 2026 USD ($)	Mar. 31, 2025 USD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2023 USD ($)
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Selling, general and administrative expenses related party amount															$ 72,204	$ 41,104
Other accrued liabilities															4,478		$ 4,605
Financing liability															74,673		72,140
Revenue under collaboration agreements															22,681	7,973
Contract liability, current															757		609
Contract liability, noncurrent															$ 978		1,130
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Expected timing of satisfaction															2028
EEA License [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Performance obligation, transaction price					$ 69,400
ROW License [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Performance obligation, transaction price					73,100
Development and Regulatory Services [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Performance obligation, transaction price					2,600
Alfresa Agreement [Member] \| License Agreement [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Initial Transaction Price													$ 7,000
Revenue recognized under the ALK Collaboration Agreement															$ 0	0
Alfresa Agreement [Member] \| License Agreement [Member] \| JAPAN
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Upfront Payment													$ 2,000	$ 2,000	15,000
License Agreement Expiration Term													10 years
Regulatory milestone payment													$ 5,000
Recordati Agreement [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Royalty expense payable															100	0
Recordati Agreement [Member] \| License Agreement [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Upfront Payment																		$ 11,800
Regulatory milestone payment																		$ 6,000
Recordati Agreement [Member] \| Termination Agreement [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Upfront Payment									$ 3,300	€ 3.0
Aggregate milestone payments		$ 5,900	€ 5.0
Estimated Life of Finite Lived Intangible Assets		13 years 6 months	13 years 6 months
Revenue recognized under the ALK Collaboration Agreement																	0
Recordati Agreement [Member] \| In Process Research and Development [Member] \| Termination Agreement [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Contract with Customer, Liability																			$ 3,100
Recordati Agreement [Member] \| Research and development [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Milestone Payments						$ 2,100	€ 2.0
Recordati Agreement [Member] \| Research and development [Member] \| Termination Agreement [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Upfront Payment \| €												€ 3.0
Recordati Agreement [Member] \| European Medicines Agency [Member] \| Termination Agreement [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Milestone Payments \| €										2.0
Recordati Agreement [Member] \| First commercial sale of Recordati Licensed Product [Member] \| Termination Agreement [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Milestone Payments \| €										5.0
Recordati Agreement [Member] \| Aggregate sale of Recordati Licensed Product [Member] \| Termination Agreement [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Royalty payments \| €										€ 5.0
Pediatrix Agreement [Member] \| License Agreement [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
License Agreement Expiration Term											10 years
Initial Transaction Price											$ 3,000
Revenue recognized under the ALK Collaboration Agreement															0	0
Upfront payment and achievement of regulatory and commercial milestones															7,000
Pediatrix Agreement [Member] \| License Agreement [Member] \| Maximum [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Sales-Based Milestones															80,000
Seqirus Agreement [Member] \| License Agreement [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
License Agreement Expiration Term								15 years
Initial Transaction Price								$ 500
Revenue recognized under the ALK Collaboration Agreement															0	0
Upfront payment and achievement of regulatory and commercial milestones															2,600
Seqirus Agreement [Member] \| License Agreement [Member] \| Maximum [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Regulatory and commercial milestones payments															2,300
ALK Collaboration Agreement [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Contract with Customer, Liability															1,735		1,739
Upfront payment and achievement of regulatory and commercial milestones															155,000
ALK Collaboration Agreement [Member] \| ALK Financing Liability [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Financing liability															$ 74,673		$ 72,140
ALK Collaboration Agreement [Member] \| License Agreement [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Upfront Payment					$ 145,000
License Agreement Expiration Term					15 years										15 years
Regulatory milestone payment															$ 5,000
Regulatory and Commercial Sales Milestones					$ 20,000
Revenue under collaboration agreements															2,500
Purchase Commitment Period	5 years
ALK Collaboration Agreement [Member] \| License Agreement [Member] \| Maximum [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Regulatory milestone payment					10,000										10,000
Sales-Based Milestones					300,000										300,000
ALK Collaboration Agreement [Member] \| EEA License [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Financing liability															74,200
ALK Collaboration Agreement [Member] \| Development and Regulatory Services [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Contract with Customer, Liability															2,500
Performance obligation, transaction price															100	$ 200
ALK Collaboration Agreement [Member] \| First Commercial Sale Of Neffy [Member] \| License Agreement [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Upfront payment and achievement of regulatory and commercial milestones					$ 10,000
ALK Co-Promotion Agreement [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Number of pediatricians \| Doctor				10,000
Performance based bonus payments percentage				30.00%
Transaction under agreement with A.L.K U.S				Payments to ALK U.S. for the services performed during the first year of the arrangement will be deferred and paid in the second year of the arrangement. In addition to the base fee, ALK U.S. will be eligible to receive performance-based bonus payments from the Company starting in the second year of the arrangement equal to 30% of the portion of neffy net sales generated from the ALK U.S.-targeted prescribers in excess of a specified initial market share threshold in year two or a 50% market share threshold during years three and four of the arrangement.
Threshold percentage				50.00%
Other accrued liabilities															$ 2,800