Commitments - Additional Information (Details) - Life Technologies Corporation Supply Agreement [Member] - Quant Studio Five Real Time P C R Systems [Member]			6 Months Ended	12 Months Ended
Jun. 30, 2019 USD ($) Product	Dec. 31, 2018 USD ($) Product	Jun. 30, 2019 USD ($) Product	Dec. 31, 2018 USD ($) Product
Other Commitments [Line Items]
Number of products acquired	21	15		11
Number of products acquired during period			6
Committed to acquire total cost of additional products in next three months \| $	$ 135,000,000	$ 135,000	$ 135,000,000	$ 135,000
Number of products committed to be acquired			3	3

Minimum amount to be expended to satisfy the terms of arrangements in which the entity has agreed to expend funds to procure goods or services, excluding long-term purchase commitments or unconditional purchase obligations.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(17))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(19))
-URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(25))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant