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Business Description and Basis of Presentation (Details) - Patents [Member]	Mar. 31, 2018 Patent
Finite-Lived Intangible Assets [Line Items]
Number of patents and pending applications	185
U.S. [Member]
Finite-Lived Intangible Assets [Line Items]
Number of patents and pending applications	70
Foreign [Member]
Finite-Lived Intangible Assets [Line Items]
Number of patents and pending applications	115

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