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Acquisitions Acquisition (Consideration Transferred) (Details) - USD ($) shares in Millions, $ in Millions | Aug. 18, 2021 | Jul. 02, 2021 | Dec. 08, 2019 | Aug. 23, 2019
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AnalogX, Inc. |  |  |  |
Business acquisition |  |  |  |
Total consideration |  | $ 47.5 |  |
Total consideration transferred |  | 40.4 |  |
Deferred payments, total |  | 7.4 |  |
Deferred payments, fair value |  | 7.1 |  |
Escrow deposit |  | $ 5.9 |  |
Escrow release term |  | 12 months |  |
PLDA Group |  |  |  |
Business acquisition |  |  |  |
Total consideration | $ 85.6 |  |  |
Total consideration transferred | $ 67.1 |  |  |
Shares issued related to business acquisition (in shares) | 0.3 |  |  |
Shares issued related to business acquisition, fair value | $ 6.9 |  |  |
Additional consideration subject to certain revenue targets, fair value | 16.9 |  |  |
Escrow deposit | $ 10.0 |  |  |
Escrow release term | 24 months |  |  |
PLDA Group | Maximum |  |  |  |
Business acquisition |  |  |  |
Additional consideration subject to certain revenue targets | $ 21.0 |  |  |
Northwest Logic |  |  |  |
Business acquisition |  |  |  |
Total consideration transferred |  |  |  | $ 21.9
Escrow deposit |  |  |  | $ 3.0
Escrow release term |  |  |  | 24 months
Silicon IP and Business Protocols Business from Verimatrix |  |  |  |
Business acquisition |  |  |  |
Total consideration |  |  | $ 46.8 |
Total consideration transferred |  |  | 45.0 |
Additional consideration subject to certain revenue targets, fair value |  |  | 1.8 |
Silicon IP and Business Protocols Business from Verimatrix | Maximum |  |  |  |
Business acquisition |  |  |  |
Total consideration |  |  | 65.0 |
Additional consideration subject to certain revenue targets |  |  | $ 20.0 |

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