2020-03-31664702018-04-012019-03-31tse-ed-t:ConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ResultMember664702018-04-012019-03-31tse-ed-t:FirstQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ResultMember664702018-04-012019-03-31tse-ed-t:SecondQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ResultMember664702018-04-012019-03-31tse-ed-t:ThirdQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ResultMember664702018-04-012019-03-31tse-ed-t:YearEndMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ResultMember664702018-04-012019-03-31tse-ed-t:AnnualMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ResultMember664702019-04-012020-03-31664702019-04-012020-03-31tse-ed-t:ConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ForecastMember664702019-04-012020-03-31tse-ed-t:ConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:LowerMember664702019-04-012020-03-31tse-ed-t:ConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:UpperMember664702019-04-012020-03-31tse-ed-t:ConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:ForecastMember664702019-04-012020-03-31tse-ed-t:ConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:LowerMember664702019-04-012020-03-31tse-ed-t:ConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:UpperMember664702019-04-012020-03-31tse-ed-t:FirstQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ResultMember664702019-04-012020-03-31tse-ed-t:FirstQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ForecastMember664702019-04-012020-03-31tse-ed-t:FirstQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:LowerMember664702019-04-012020-03-31tse-ed-t:FirstQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:UpperMember664702019-04-012020-03-31tse-ed-t:FirstQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:ForecastMember664702019-04-012020-03-31tse-ed-t:FirstQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:LowerMember664702019-04-012020-03-31tse-ed-t:FirstQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:UpperMember664702019-04-012020-03-31tse-ed-t:SecondQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ResultMember664702019-04-012020-03-31tse-ed-t:SecondQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ForecastMember664702019-04-012020-03-31tse-ed-t:SecondQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:LowerMember664702019-04-012020-03-31tse-ed-t:SecondQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:UpperMember664702019-04-012020-03-31tse-ed-t:SecondQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:ForecastMember664702019-04-012020-03-31tse-ed-t:SecondQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:LowerMember664702019-04-012020-03-31tse-ed-t:SecondQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:UpperMember664702019-04-012020-03-31tse-ed-t:ThirdQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ResultMember664702019-04-012020-03-31tse-ed-t:ThirdQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ForecastMember664702019-04-012020-03-31tse-ed-t:ThirdQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:LowerMember664702019-04-012020-03-31tse-ed-t:ThirdQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:UpperMember664702019-04-012020-03-31tse-ed-t:ThirdQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:ForecastMember664702019-04-012020-03-31tse-ed-t:ThirdQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:LowerMember664702019-04-012020-03-31tse-ed-t:ThirdQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:UpperMember664702019-04-012020-03-31tse-ed-t:YearEndMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ForecastMember664702019-04-012020-03-31tse-ed-t:YearEndMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:LowerMember664702019-04-012020-03-31tse-ed-t:YearEndMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:UpperMember664702019-04-012020-03-31tse-ed-t:YearEndMembertse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:ForecastMember664702019-04-012020-03-31tse-ed-t:YearEndMembertse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:LowerMember664702019-04-012020-03-31tse-ed-t:YearEndMembertse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:UpperMember664702019-04-012020-03-31tse-ed-t:AnnualMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ForecastMember664702019-04-012020-03-31tse-ed-t:AnnualMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:LowerMember664702019-04-012020-03-31tse-ed-t:AnnualMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:UpperMember664702019-04-012020-03-31tse-ed-t:AnnualMembertse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:ForecastMember664702019-04-012020-03-31tse-ed-t:AnnualMembertse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:LowerMember664702019-04-012020-03-31tse-ed-t:AnnualMembertse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:UpperMember664702020-03-31664702020-03-31tse-ed-t:AnnualMembertse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:ResultMemberiso4217:JPYxbrli:pureiso4217:JPYxbrli:shares