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Acquisitions (Notes)	6 Months Ended
Acquisitions (Notes)	Sep. 30, 2019
Acquisitions [Abstract]
Business Combination Disclosure [Text Block]	Acquisitions Novasentis Inc. ("Novasentis") On July 1, 2019, the Company acquired the remaining 72.1% interest in Novasentis for a preliminary purchase price of $2.7 million. Prior to July 2019, the Company owned 27.9% of Novasentis, a leading developer of film-based haptic actuators, and accounted for its investment using the equity method of accounting. We believe Novasentis' haptic actuator technology that we have acquired will provide unique flexibility, which will enable it to be incorporated into a wide variety of wearables and virtual/augmented reality applications to provide a variety of tactile sensations.