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Overview (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions | Jun. 30, 2019 | Nov. 01, 2018
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Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |
Reverse terminantion fee | $ 98.0 |
Illumina, FC Ops Corp [Member] | Pacific Biosciences of California, Inc. [Member] |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |
Purchase price, per share amount |  | $ 8.00

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