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Acquisitions - Schedule of Intangible Assets Value on Purchase Price (Details) - USD ($) $ in Thousands |  |  | 6 Months Ended
--- | --- | --- | ---
Jan. 07, 2019 | May 31, 2018 | Jun. 30, 2019
Developed Technology |  |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |  |
Amortization Period (in years) |  |  | 4 years
Developed Technology | Polaris Alpha |  |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount |  | $ 84,900 |
Amortization Period (in years) |  | 4 years |
Developed Technology | OGSystems |  |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount | $ 1,300 |  |
Amortization Period (in years) | 3 years |  |
Customer Relationships |  |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |  |
Amortization Period (in years) |  |  | 7 years
Customer Relationships | Polaris Alpha |  |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount |  | $ 76,000 |
Amortization Period (in years) |  | 8 years |
Customer Relationships | OGSystems |  |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount | $ 57,100 |  |
Amortization Period (in years) | 5 years |  |
Backlog |  |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |  |
Amortization Period (in years) |  |  | 3 years
Backlog | Polaris Alpha |  |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount |  | $ 34,900 |
Amortization Period (in years) |  | 2 years |
Backlog | OGSystems |  |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount | $ 27,700 |  |
Amortization Period (in years) | 3 years |  |
Trade Name |  |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |  |
Amortization Period (in years) |  |  | 1 year
Trade Name | Polaris Alpha |  |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount |  | $ 3,600 |
Amortization Period (in years) |  | 1 year |
Trade Name | OGSystems |  |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount | $ 3,800 |  |
Amortization Period (in years) | 2 years |  |
Non compete Agreements |  |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |  |
Amortization Period (in years) |  |  | 2 years
Non compete Agreements | OGSystems |  |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount | $ 2,400 |  |
Amortization Period (in years) | 3 years |  |
Leases |  |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |  |
Amortization Period (in years) |  |  | 5 years
Leases | Polaris Alpha |  |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount |  | $ 120 |
Amortization Period (in years) |  | 6 years |

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