Collaboration and License Agreement (Details) - USD ($) $ in Millions	Mar. 31, 2016	Mar. 11, 2016
Business Acquisition [Line Items]
Equity Method Investment, Ownership Percentage		19.90%
Subsidiary, Ownership Interest by Parent		80.10%
Hitachi Chemical Co., LTD [Member]
Business Acquisition [Line Items]
Equity Method Investment, Ownership Percentage		21.00%
Recorded Unconditional Purchase Obligation	$ 20.5	$ 19.4
Unrecorded Unconditional Purchase Obligation, Maximum Quantity		15.0
PCT Allendale, LLC [Member]
Business Acquisition [Line Items]
Purchase Obligation		$ 4.4

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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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
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

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Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier.

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- Definition

Amount of the recorded obligation to transfer funds in the future for fixed or minimum amounts or quantities of goods or services at fixed or minimum prices (for example, as in take-or-pay contracts or throughput contracts).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 440
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25383-109308

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Maximum number of units that may be acquired, in connection with an unconditional purchase obligation that has not been recognized for financial reporting purposes.

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