2021-03-31861402019-04-012020-03-31tse-ed-t:ConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ResultMember861402019-04-012020-03-31tse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ResultMember861402020-04-012021-03-31861402020-04-012021-03-31tse-ed-t:ConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ForecastMember861402020-04-012021-03-31tse-ed-t:ConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:LowerMember861402020-04-012021-03-31tse-ed-t:ConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:UpperMember861402020-04-012021-03-31tse-ed-t:ConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:ForecastMember861402020-04-012021-03-31tse-ed-t:ConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:LowerMember861402020-04-012021-03-31tse-ed-t:ConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:UpperMember861402020-04-012021-03-31tse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ForecastMember861402020-04-012021-03-31tse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:LowerMember861402020-04-012021-03-31tse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:UpperMember861402020-04-012021-03-31tse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:ForecastMember861402020-04-012021-03-31tse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:LowerMember861402020-04-012021-03-31tse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:UpperMember861402021-03-31iso4217:JPYxbrli:pureiso4217:JPYxbrli:shares