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Acquisitions Acquisitions (Intangible Assets Acquired as Part of Business Combination) (Details) - USD ($) $ in Thousands | Dec. 08, 2019 | Aug. 23, 2019
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Silicon IP and Business Protocols Business from Verimatrix |  |
Identified intangible assets assumed in the acquisitions |  |
Identified intangible assets assumed | $ 23,500 |
Indefinite-lived Intangible Assets Acquired | 1,000 |
Silicon IP and Business Protocols Business from Verimatrix | Existing technology |  |
Identified intangible assets assumed in the acquisitions |  |
Identified intangible assets assumed | 21,600 |
Silicon IP and Business Protocols Business from Verimatrix | Customer contracts and contractual relationships |  |
Identified intangible assets assumed in the acquisitions |  |
Identified intangible assets assumed | $ 900 |
Identified intangible assets assumed, weighted-average useful life | 5 years |
Northwest Logic |  |
Identified intangible assets assumed in the acquisitions |  |
Identified intangible assets assumed |  | $ 8,800
Northwest Logic | Existing technology |  |
Identified intangible assets assumed in the acquisitions |  |
Identified intangible assets assumed |  | $ 8,100
Identified intangible assets assumed, weighted-average useful life |  | 5 years
Northwest Logic | Customer contracts and contractual relationships |  |
Identified intangible assets assumed in the acquisitions |  |
Identified intangible assets assumed |  | $ 400
Identified intangible assets assumed, weighted-average useful life |  | 2 years
Northwest Logic | Customer backlog |  |
Identified intangible assets assumed in the acquisitions |  |
Identified intangible assets assumed |  | $ 300
Identified intangible assets assumed, weighted-average useful life |  | 6 months
Minimum | Silicon IP and Business Protocols Business from Verimatrix | Existing technology |  |
Identified intangible assets assumed in the acquisitions |  |
Identified intangible assets assumed, weighted-average useful life | 3 years |
Maximum | Silicon IP and Business Protocols Business from Verimatrix | Existing technology |  |
Identified intangible assets assumed in the acquisitions |  |
Identified intangible assets assumed, weighted-average useful life | 5 years |

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