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Overview (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions	Mar. 31, 2019	Nov. 01, 2018
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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- Definition

Organization, Consolidation and Presentation of Financial Statements [Line Items]

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Reverese terminantion fee, receivable required upon termination of merger agreement under certain specified circumstances.

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Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

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