2021-03-31351202019-04-012019-09-30tse-ed-t:ConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ResultMember351202019-04-012020-03-31tse-ed-t:ConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ResultMember351202020-04-012020-09-30tse-ed-t:ConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ForecastMember351202020-04-012020-09-30tse-ed-t:ConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:LowerMember351202020-04-012020-09-30tse-ed-t:ConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:UpperMember351202020-04-012020-09-30tse-ed-t:ConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:ForecastMember351202020-04-012020-09-30tse-ed-t:ConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:LowerMember351202020-04-012020-09-30tse-ed-t:ConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:UpperMember351202020-04-012021-03-31351202020-04-012021-03-31tse-ed-t:ConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ForecastMember351202020-04-012021-03-31tse-ed-t:ConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:LowerMember351202020-04-012021-03-31tse-ed-t:ConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:UpperMember351202020-04-012021-03-31tse-ed-t:ConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:ForecastMember351202020-04-012021-03-31tse-ed-t:ConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:LowerMember351202020-04-012021-03-31tse-ed-t:ConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:UpperMember351202021-03-31iso4217:JPYxbrli:pureiso4217:JPYxbrli:shares