Goodwill and Intangible Assets, Net - Schedule of Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2026	Dec. 31, 2025
Goodwill [Roll Forward]
Beginning balance	$ 124,882	$ 117,019
Goodwill activity from Sage Acquisition	(4,214)	7,863
Ending balance	120,668	124,882
Sage Therapeutics, Inc.
Goodwill [Roll Forward]
Beginning balance	$ 3,649
Ending balance		$ 3,649

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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+ Details