Stockholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	Mar. 07, 2023	Mar. 31, 2023	Jun. 30, 2023	Jun. 06, 2023	Jun. 05, 2023	Dec. 31, 2022
Stockholders' Equity Note [Abstract]
Shares issued in a pre-closing funding (in shares)	3,730,608
Issue price per share (in USD per share)	$ 8.21
Value of shares issued in a pre-closing funding	$ 30,600
Issuance of common stock upon settlement of convertible promissory note, accrued interest, and related derivative liability (in shares)	5,059,338
Issuance of common stock upon settlement of convertible promissory note, accrued interest, and related derivative liability	$ 35,000	$ 42,447
Shares issued upon conversion of convertible preferred stock and exchangeable shares previously presented as noncontrolling interests (in shares)	18,872,711
Issuance of common stock to Sesen Bio shareholders in reverse capitalization (in shares)	10,374,272
Common stock, par value (in usd per share)			$ 0.001			$ 0.001
Common stock, shares authorized (in shares)			350,000,000	350,000,000	100,000,000	350,000,000