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Business Acquisitions - Additional Information (Details) - USD ($) $ in Thousands |  |  |  | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
Apr. 12, 2017 | Dec. 08, 2016 | Jan. 05, 2016 | Jun. 30, 2017 | Jun. 30, 2016 | Dec. 31, 2016
Business Acquisition [Line Items] |  |  |  |  |  |
Total purchase price, net of cash received |  |  |  | $ 4,446 | $ 271,458 |
Goodwill |  |  |  | $ 332,996 |  | $ 327,724
InPharmics LLC |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Total purchase price, net of cash received | $ 5,000 |  |  |  |  |
Cash on hand at signing | 300 |  |  |  |  |
Contingent consideration liability | 500 |  |  |  |  |
Intangibles | $ 1,900 |  |  |  |  |
Aesynt Holding, L.P., Aesynt, Ltd. |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Total purchase price, net of cash received |  |  | $ 271,458 |  |  |
Cash on hand at signing |  |  | 8,164 |  |  |
Intangibles |  |  | 123,700 |  |  |
Goodwill |  |  | $ 163,599 |  |  |
Aesynt Holding, L.P., Aesynt, Ltd. | Minimum |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
In process research and development, expected term (in years) |  |  |  | 2 years |  |
Aesynt Holding, L.P., Aesynt, Ltd. | Maximum |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
In process research and development, expected term (in years) |  |  |  | 3 years |  |
Aesynt Holding, L.P., Aesynt, Ltd. | In-process research and development (IPR&D) |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Royalty rate |  |  |  | 12.50% |  |
Aesynt Holding, L.P., Aesynt, Ltd. | Trade names |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Royalty rate |  |  |  | 0.50% |  |
Aesynt Holding, L.P., Aesynt, Ltd. | Developed technology | Minimum |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Royalty rate |  |  |  | 4.00% |  |
Aesynt Holding, L.P., Aesynt, Ltd. | Developed technology | Maximum |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Royalty rate |  |  |  | 8.00% |  |
Aesynt Holding, L.P., Aesynt, Ltd. | Customer relationships |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Discount rate |  |  |  | 13.00% |  |
Aesynt Holding, L.P., Aesynt, Ltd. | Backlog |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Discount rate |  |  |  | 10.00% |  |
Aesynt Holding, L.P., Aesynt, Ltd. | Non-compete |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Discount rate |  |  |  | 13.00% |  |
Ateb |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Total purchase price, net of cash received |  | $ 40,700 |  |  |  |
Cash on hand at signing |  | 902 |  |  |  |
Intangibles |  | 12,500 |  |  |  |
Goodwill |  | $ 20,895 |  |  |  |
Ateb | Trade names |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Royalty rate |  |  |  |  |  | 0.50%
Ateb | Developed technology | Minimum |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Royalty rate |  |  |  |  |  | 5.00%
Ateb | Developed technology | Maximum |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Royalty rate |  |  |  |  |  | 6.00%
Ateb | Customer relationships |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Discount rate |  |  |  |  |  | 15.00%

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