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Financial Risk Management and Derivatives (Details) - USD ($)	3 Months Ended		6 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Mar. 31, 2021
Foreign Currency Exchange Contracts [Abstract]
Forward foreign currency exchange contracts included in included other current liabilities	$ 1,004,000		$ 1,004,000
Forward foreign currency exchange contracts included in prepaid and other current assets					$ 1,429,000
Forward Foreign Currency Exchange Contracts [Member]
Foreign Currency Exchange Contracts [Abstract]
Notional amount of foreign currency derivatives	45,133,000		45,133,000		$ 41,819,000
Forward Foreign Currency Exchange Contracts [Member] | Foreign Exchange Impact of Lease Liabilities and Forward Contracts [Member]
Foreign Currency Exchange Contracts [Abstract]
Forward foreign currency exchange contracts	$ (2,171,000)	$ 2,367,000	$ (2,433,000)	$ 5,199,000
Forward Foreign Currency Exchange Contracts [Member] | Maximum [Member]
Foreign Currency Exchange Contracts [Abstract]
Derivative, term of contract			1 year

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- References

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Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4CC
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL109998890-113959

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Nominal or face amount used to calculate payment on derivative.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
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-Section 50
-Paragraph 1A
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Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Fair value as of the balance sheet date of all foreign currency derivative assets not designated as hedging instruments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
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Fair value as of the balance sheet date of all foreign currency derivative liabilities not designated as hedging instruments.

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-Topic 815
-SubTopic 10
-Section 50
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