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Intangible Assets - Schedule of Gross Amount and Accumulated Amortization of Intangible Assets (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2020 | Dec. 31, 2019
Acquired Finite Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 463,268 | $ 463,268
Accumulated Amortization | (226,240) | (203,410)
Net Carrying Amount | 237,028 | 259,858
Backlog |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 109,255 | 109,255
Accumulated Amortization | (91,704) | (87,510)
Net Carrying Amount | $ 17,551 | 21,745
Amortization Period (in years) | 3 years |
Customer Relationships |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 228,529 | 228,529
Accumulated Amortization | (78,533) | (67,809)
Net Carrying Amount | $ 149,996 | 160,720
Amortization Period (in years) | 7 years |
Leases |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 670 | 670
Accumulated Amortization | (585) | (580)
Net Carrying Amount | $ 85 | 90
Amortization Period (in years) | 5 years |
Developed Technology |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 110,939 | 110,939
Accumulated Amortization | (47,799) | (40,749)
Net Carrying Amount | $ 63,140 | 70,190
Amortization Period (in years) | 4 years |
Trade Name |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 8,200 | 8,200
Accumulated Amortization | (6,242) | (5,667)
Net Carrying Amount | $ 1,958 | 2,533
Amortization Period (in years) | 1 year |
Non compete Agreements |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 3,600 | 3,600
Accumulated Amortization | (1,200) | (925)
Net Carrying Amount | $ 2,400 | 2,675
Amortization Period (in years) | 3 years |
In Process Research and Development |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 1,800 | 1,800
Accumulated Amortization | 0 | 0
Net Carrying Amount | 1,800 | 1,800
Other Intangibles |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 275 | 275
Accumulated Amortization | (177) | (170)
Net Carrying Amount | $ 98 | $ 105
Amortization Period (in years) | 10 years |

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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