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Accounting Pronouncements Adoption of Account Standards Update 2016-16 (Narrative) (Details) - USD ($)
$ in Thousands
9 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Adoption of FASB Accounting Standards Update 2016-16 eliminating deferred income taxes on unrecognized gains on intra-entity transfers of assets other than inventory $ (1,934) $ 0