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The Business - Cell Therapy Development and Manufacturing (Details) - USD ($) $ in Millions		1 Months Ended
	Oct. 02, 2017	Dec. 31, 2017	May 31, 2017	Mar. 11, 2016
Subsidiary or Equity Method Investee [Line Items]
Revenue from grants	$ 1.9	$ 1.9	$ 5.7
Equity Method Investment, Ownership Percentage				19.90%
Hitachi America [Member]
Subsidiary or Equity Method Investee [Line Items]
Equity Method Investment, Ownership Percentage				21.00%

X

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
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Revenue earned during the period from non-repayable sum of money awarded to an entity to carry out a specific purpose as provided in grant agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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