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COLLABORATION INTEREST-BEARING ADVANCED FUNDING - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Disclosure of continuing involvement in derecognised financial assets [line items]
Advanced funding principal balance increase (decrease)	$ (57.3)
Outstanding principal balance	192.7
Collaboration interest-bearing advanced funding	266.0		$ 319.1
Janssen
Disclosure of continuing involvement in derecognised financial assets [line items]
Interest bearing borrowings, funding advances	250.0
Interest accrued on funding advances	$ 73.3
Interest rate margin percentage	2.50%
Interest expense on borrowings	$ 4.2	$ 4.6

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- Definition

The adjustment to the basis (reference rate) used for calculation of the interest rate on borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-IssueDate 2025-01-01
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- Definition

The amount of current borrowings and current portion of non-current borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
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-IssueDate 2025-01-01
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- Definition

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- References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
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-IssueDate 2025-01-01
-Paragraph 112
-Subparagraph c
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-URIDate 2025-03-27

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- Definition

Interest bearing borrowings funded interests accrued.

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- Definition

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- Definition

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