Acquisitions (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Jul. 31, 2019	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Jul. 01, 2019
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired				$ 1,294	$ 0
Equity income (loss) from equity method investments		$ 472	$ 64	$ 222	$ (5)
Novasentis [Member]
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired						72.10%
Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage						27.90%
Business Combination, Consideration Transferred	$ 2,700