Revenue Recognition - Deferred Revenues (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) agreement	Dec. 31, 2018 USD ($)
Revenue recognized during the period that was included in deferred revenues at the beginning of the period	$ 970
Deferred revenue, current portion	56,016	$ 4,131
Deferred revenue, Long-term	23,808	40,058
Total deferred revenues	79,824	44,189
Increase in current deferred revenues	$ 51,900	16,700
Reclassification of long-term deferred revenues to current deferred revenues		$ 36,200
Number of new strategic partnership agreements | agreement	2
Strategic partnership agreements
Deferred revenue, current portion	$ 55,300
Qiagen
Revenue recognized during the period that was included in deferred revenues at the beginning of the period	200
Genetic testing services and provision of IVD kits
Revenue recognized during the period that was included in deferred revenues at the beginning of the period	500
Processing and storage services | Evercord
Revenue recognized during the period that was included in deferred revenues at the beginning of the period	$ 300