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Subsequent Event	6 Months Ended
	Jun. 30, 2018
Subsequent Events [Abstract]
Subsequent Event	Note 19. Subsequent Event In July 2018, we borrowed $60.0 million under our June 2017 finance contract with the European Investment Bank to support financing of certain of our R&D projects. Repayment installments, with interest, are due semi-annually, beginning June 30, 2022 and ending June 30, 2026. The interest rate is LIBOR plus 0.966%.

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- Definition

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

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