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Intangible Asset and Goodwill (Details 3) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015 | Dec. 31, 2015
Components of intangible assets |  |  |  |  |
Gross Carrying Amount | $ 347,656 |  | $ 347,656 |  | $ 216,714
Accumulated Amortization | (182,794) |  | (182,794) |  | (152,448)
Net Carrying Amount | 164,862 |  | 164,862 |  | 64,266
Amortization expense for intangible assets | 10,200 | $ 6,300 | 26,045 | $ 18,914 |
Existing technology |  |  |  |  |
Components of intangible assets |  |  |  |  |
Gross Carrying Amount | 257,228 |  | 257,228 |  | 185,321
Accumulated Amortization | (147,839) |  | (147,839) |  | (127,028)
Net Carrying Amount | 109,389 |  | $ 109,389 |  | $ 58,293
Existing technology | Minimum [Member] |  |  |  |  |
Components of intangible assets |  |  |  |  |
Useful Life (in years) |  |  | 3 years |  | 3 years
Existing technology | Maximum [Member] |  |  |  |  |
Components of intangible assets |  |  |  |  |
Useful Life (in years) |  |  | 10 years |  | 10 years
Customer Contracts [Member] |  |  |  |  |
Components of intangible assets |  |  |  |  |
Gross Carrying Amount | 66,728 |  | $ 66,728 |  | $ 31,093
Accumulated Amortization | (34,655) |  | (34,655) |  | (25,120)
Net Carrying Amount | 32,073 |  | $ 32,073 |  | $ 5,973
Customer Contracts [Member] | Minimum [Member] |  |  |  |  |
Components of intangible assets |  |  |  |  |
Useful Life (in years) |  |  | 1 year |  | 1 year
Customer Contracts [Member] | Maximum [Member] |  |  |  |  |
Components of intangible assets |  |  |  |  |
Useful Life (in years) |  |  | 10 years |  | 10 years
Non-compete agreements |  |  |  |  |
Components of intangible assets |  |  |  |  |
Useful Life (in years) |  |  | 3 years |  | 3 years
Gross Carrying Amount | 300 |  | $ 300 |  | $ 300
Accumulated Amortization | (300) |  | (300) |  | (300)
Net Carrying Amount | 0 |  | 0 |  | 0
Favorable contracts |  |  |  |  |
Components of intangible assets |  |  |  |  |
Net Carrying Amount | 5,200 |  | 5,200 |  | $ 0
Cash received related to favorable contracts | 600 | $ 0 | 4,700 | $ 100 |
In Process Research and Development [Member] |  |  |  |  |
Components of intangible assets |  |  |  |  |
Gross Carrying Amount | 23,400 |  | 23,400 |  |
Accumulated Amortization | 0 |  | 0 |  |
Net Carrying Amount | $ 23,400 |  | $ 23,400 |  |

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