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Acquisitions - Allocation of Consideration (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Sep. 09, 2020 | Sep. 08, 2020 | Apr. 01, 2020 | Dec. 31, 2019 | Jul. 23, 2019 | Oct. 31, 2018
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Business Acquisition [Line Items] |  |  |  |  |  |  |
Goodwill | $ 189,662 |  |  |  | $ 95,229 |  |
Taurus |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Cash and cash equivalents |  | $ 47 |  |  |  |  |
Intangible asset with finite life - core technology |  | 5,005 |  |  |  |  |
Total consideration |  | $ 5,052 |  |  |  |  |
xCella |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Cash and other assets |  |  | $ 240 |  |  |  |
Accrued liabilities |  |  | (142) |  |  |  |
Deferred tax liabilities, net |  |  | (820) |  |  |  |
Intangible asset with finite life - core technology |  |  | 7,798 |  |  |  |
Total consideration |  |  | $ 7,076 |  |  |  |
Icagen |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Property and equipment, net |  |  |  | $ 1,173 |  |  |
Prepaids and other assets |  |  |  | 588 |  |  |
Liabilities assumed |  |  |  | (812) |  |  |
Deferred revenue |  |  |  | (3,685) |  |  |
Deferred tax assets, net |  |  |  | 861 |  |  |
Acquired intangibles |  |  |  | 12,800 |  |  |
Goodwill |  |  |  | 9,015 |  |  |
Total consideration |  |  |  | $ 19,940 |  |  |
Ab Initio |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Cash and other assets |  |  |  |  |  | $ 28 |
Accounts payable and accrued liabilities |  |  |  |  |  | (83) |
Deferred tax liabilities, net |  |  |  |  |  | (146) |
Intangible asset with finite life - core technology |  |  |  |  |  | 7,400 |
Goodwill |  |  |  |  |  | 4,812 |
Total consideration |  |  |  |  |  | $ 12,011 |
Vernalis |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Cash and cash equivalents |  |  |  |  |  |  | $ 34,286
Restricted cash |  |  |  |  |  |  | 2,836
Other assets |  |  |  |  |  |  | 6,383
Deferred revenue |  |  |  |  |  |  | (746)
Accounts payable and accrued liabilities |  |  |  |  |  |  | (3,479)
Restructuring and product reserves |  |  |  |  |  |  | (9,241)
Intangible asset with finite life - core technology |  |  |  |  |  |  | 7,000
Goodwill |  |  |  |  |  |  | 5,939
Total consideration |  |  |  |  |  |  | $ 42,978

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