Revenue Recognition - Deferred Revenues (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Revenue recognized during the period that was included in deferred revenues at the beginning of the period	$ 12,102	$ 9,610
Deferred revenue, current portion	17,886		$ 16,612
Deferred revenue, Long-term	16,916		$ 19,128
BGI Genomics
Deferred revenue, current portion	500
Deferred revenue, Long-term	16,900
Foundation Medicine ("FMI")
Deferred revenue, current portion	3,000
BGI Genomics and Foundation Medicine ("FMI")
Revenue recognized during the period that was included in deferred revenues at the beginning of the period	1,700
Genetic testing services
Revenue recognized during the period that was included in deferred revenues at the beginning of the period	10,400
Deferred revenue, current portion	$ 14,400