Related Party Transactions - Schedule of Major Related Party and Relationship (Details)	9 Months Ended
Sep. 30, 2019
MEDx (Suzhou) Translational Medicine Co., Ltd. (Formerly known as Qiagen (Suzhou) translational medicine Co., Ltd)
Related Party Transaction [Line Items]
Relationship with the Group	Significant influence held by Samantha Du's immediate family

- Definition

A description of the related party transaction, including transactions to which no amounts or nominal amounts were ascribed and such other information deemed necessary to an understanding of the effects of the transactions on the financial statements. Examples of common related party transactions are, sales, purchases and transfers of realty and personal property, services received or furnished, loans and leases to and from top management and affiliates.

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