Sale of Cullinan Pearl and Co-Development Agreement with Taiho - Schedule of cash consideration received (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2023 USD ($)
Book Value of Asset Sold [Abstract]
Cash	$ 2,898
Prepaid expenses and other current assets	619
Amounts attributable to assets sold	3,517
Book Value Of Liability Sold [Abstract]
Accrued expenses and other current liabilities	2,404
Amounts attributable to liabilities sold	2,404
Total identifiable net assets sold	1,113
Upfront consideration, inclusive of escrow of $5,000 and cash transferred of $2,898	277,898
Gain on sale of Cullinan Pearl	$ 276,785