(Gain) Loss on Write Down and Disposal of Long-Lived Assets (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Property, Plant and Equipment [Line Items]
Disposal Group, Not (Gain) loss on write down and disposal of long-lived assetsDiscontinued Operation, Loss (Gain) on Write-down	$ 59	$ 312	$ 1,019	$ 823

Amount, before tax, of (gain) loss recognized for the (reversal of write-down) write-down to fair value, less cost to sell, of a disposal group. Excludes discontinued operations.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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