Goodwill and Intangible Assets, Net - Schedule Of Carrying Values Of Goodwill Assigned To Operating Segments (Parenthetical) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Cell Therapy
Goodwill [Line Items]
Accumulated goodwill impairment	$ 112,347	$ 0
Degenerative Disease
Goodwill [Line Items]
Accumulated goodwill impairment	$ 3,610	$ 3,610