The charge against earnings resulting from the write down of long lived assets other than goodwill due to the difference between the carrying value and lower fair value.

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Restructuring Plan - Additional Information (Details) - USD ($) $ in Thousands		3 Months Ended	6 Months Ended
	May 31, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Restructuring Cost And Reserve [Line Items]
Restructuring costs		$ 175	$ 2,562	$ 1,882
Lease Right of Use Assets and Property Plant and Equipment
Restructuring Cost And Reserve [Line Items]
Other asset impairment charges		$ 1,916		$ 2,405
COVID-19 Pandemic
Restructuring Cost And Reserve [Line Items]
Restructuring plan, percentage of number of positions eliminated	3.00%