Goodwill and Intangible Assets, Net - Schedule Of Carrying Values Of Goodwill Assigned To Operating Segments (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Goodwill [Line Items]
Balance at beginning of year	$ 123,304,000
Impairment	(3,610,000)
Balance at end of year	119,694,000	$ 123,304,000
Cell Therapy
Goodwill [Line Items]
Balance at beginning of year	112,347,000
Balance at end of year	112,347,000	112,347,000
Degenerative Disease
Goodwill [Line Items]
Balance at beginning of year	3,610,000
Impairment	(3,610,000)	0
Balance at end of year		3,610,000
Biobanking
Goodwill [Line Items]
Balance at beginning of year	7,347,000
Balance at end of year	$ 7,347,000	$ 7,347,000