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Acquisitions - Asset Acquisition (Details) - Vertuis Bio, Inc. - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Jan. 31, 2023	Dec. 31, 2023
Business Acquisition [Line Items]
Shares of Insmed common stock issued on closing	$ 9,250
Shares of Insmed common stock issuable on July 1, 2024	$ 1,000
Total purchase price		$ 10,250

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