Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	IPO	Over-Allotment Option	Preferred Stock Series A Preferred	Ordinary Shares	Ordinary Shares IPO	Ordinary Shares Over-Allotment Option	Additional paid-in capital	Additional paid-in capital IPO	Additional paid-in capital Over-Allotment Option	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit
Beginning balance (in shares) at Jan. 29, 2021				0	7,500,000
Beginning balance at Jan. 29, 2021	$ (4,651)			$ 0	$ 21			$ 0			$ (90)	$ (4,582)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Conversion of Series A convertible preferred shares into ordinary shares (in shares)				(22,840,902)	22,840,902
Conversion of Series A convertible preferred shares into ordinary shares	0			$ (247,847)	$ 65			247,782
Shares issued (in shares)				22,272,721		16,500,000	2,475,000
Shares issued	241,597	$ 298,077	$ 46,059	$ 241,597		$ 47	$ 7		$ 298,030	$ 46,052
Issuance of Series A convertible preferred shares upon conversion of debt (in shares)				568,181
Issuance of Series A convertible preferred shares upon conversion of debt	6,250			$ 6,250
Acquisition of Centessa Subsidiaries (in shares)					44,758,079
Acquisition of Centessa Subsidiaries	262,698				$ 123			262,575
Forgiveness of convertible term loan	6,199							6,199
Repurchase of ordinary shares concurrent with acquisition of Centessa Subsidiaries (in shares)					(4,450,000)
Repurchase of ordinary shares concurrent with acquisition of Centessa Subsidiaries	(12)				$ (12)
Stock option exercises (in shares)					50,000
Stock option exercises	292							292
Vesting of ordinary shares (in shares)					225,438
Vesting of ordinary shares	0				$ 1			(1)
Share-based compensation expense	5,960							5,960
Foreign currency translation adjustment	3,315										3,315
Net loss	(280,142)											(280,142)
Ending balance (in shares) at Jun. 30, 2021				0	89,899,419
Ending balance at Jun. 30, 2021	585,642			$ 0	$ 252			866,889			3,225	(284,724)
Beginning balance (in shares) at Mar. 31, 2021				22,840,902	48,083,517
Beginning balance at Mar. 31, 2021	278,634			$ 247,847	$ 133			271,796			2,131	(243,273)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Conversion of Series A convertible preferred shares into ordinary shares (in shares)				(22,840,902)	22,840,902
Conversion of Series A convertible preferred shares into ordinary shares	0			$ (247,847)	$ 65			247,782
Shares issued (in shares)						16,500,000	2,475,000
Shares issued		$ 298,077	$ 46,059			$ 47	$ 7		$ 298,030	$ 46,052
Share-based compensation expense	3,229							3,229
Foreign currency translation adjustment	1,094										1,094
Net loss	(41,451)											(41,451)
Ending balance (in shares) at Jun. 30, 2021				0	89,899,419
Ending balance at Jun. 30, 2021	585,642			$ 0	$ 252			866,889			3,225	(284,724)
Beginning balance (in shares) at Dec. 31, 2021				0	89,988,228
Beginning balance at Dec. 31, 2021	491,554			$ 0	$ 252			876,267			688	(385,653)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued (in shares)					3,938,423
Shares issued	$ 37,748				$ 10			37,738
Stock option exercises (in shares)	77,754				77,754
Stock option exercises	$ 405							405
Vesting of ordinary shares (in shares)					267,512
Vesting of ordinary shares	0				$ 1			(1)
Share-based compensation expense	11,321							11,321
Foreign currency translation adjustment	(1,830)										(1,830)
Net loss	(119,159)											(119,159)
Ending balance (in shares) at Jun. 30, 2022				0	94,271,917
Ending balance at Jun. 30, 2022	420,039			$ 0	$ 263			925,730			(1,142)	(504,812)
Beginning balance (in shares) at Mar. 31, 2022				0	94,021,968
Beginning balance at Mar. 31, 2022	480,151			$ 0	$ 262			920,058			(18)	(440,151)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock option exercises (in shares)					18,213
Stock option exercises	70							70
Vesting of ordinary shares (in shares)					231,736
Vesting of ordinary shares	0				$ 1			(1)
Share-based compensation expense	5,603							5,603
Foreign currency translation adjustment	(1,124)										(1,124)
Net loss	(64,661)											(64,661)
Ending balance (in shares) at Jun. 30, 2022				0	94,271,917
Ending balance at Jun. 30, 2022	$ 420,039			$ 0	$ 263			$ 925,730			$ (1,142)	$ (504,812)