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Segment and Geographic Information - Summary (Details) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 USD ($) | Jun. 30, 2017 USD ($) | Jun. 30, 2018 USD ($) Segment | Jun. 30, 2017 USD ($)
Segment Reporting [Abstract] |  |  |  |
Number of reportable segments | Segment |  |  | 1 |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | $ 349,747 | $ 290,917 | $ 676,535 | $ 562,858
United States |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 179,843 | 173,613 | 351,787 | 343,929
International |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 169,904 | 117,304 | 324,748 | 218,929
Europe |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 144,462 | 94,754 | 275,076 | 172,692
Other geographies |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | $ 25,442 | $ 22,550 | $ 49,672 | $ 46,237

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Balance Type: | credit
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- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References No definition available. + Details
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- References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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- Details
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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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