2018-09-30605002016-10-012017-09-30tse-ed-t:FirstQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ResultMember605002016-10-012017-09-30tse-ed-t:SecondQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ResultMember605002016-10-012017-09-30tse-ed-t:ThirdQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ResultMember605002016-10-012017-09-30tse-ed-t:YearEndMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ResultMember605002016-10-012017-09-30tse-ed-t:AnnualMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ResultMember605002017-10-012018-09-30605002017-10-012018-09-30tse-ed-t:FirstQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ResultMember605002017-10-012018-09-30tse-ed-t:FirstQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ForecastMember605002017-10-012018-09-30tse-ed-t:FirstQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:LowerMember605002017-10-012018-09-30tse-ed-t:FirstQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:UpperMember605002017-10-012018-09-30tse-ed-t:FirstQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:ForecastMember605002017-10-012018-09-30tse-ed-t:FirstQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:LowerMember605002017-10-012018-09-30tse-ed-t:FirstQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:UpperMember605002017-10-012018-09-30tse-ed-t:SecondQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ResultMember605002017-10-012018-09-30tse-ed-t:SecondQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ForecastMember605002017-10-012018-09-30tse-ed-t:SecondQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:LowerMember605002017-10-012018-09-30tse-ed-t:SecondQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:UpperMember605002017-10-012018-09-30tse-ed-t:SecondQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:ForecastMember605002017-10-012018-09-30tse-ed-t:SecondQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:LowerMember605002017-10-012018-09-30tse-ed-t:SecondQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:UpperMember605002017-10-012018-09-30tse-ed-t:ThirdQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ResultMember605002017-10-012018-09-30tse-ed-t:ThirdQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ForecastMember605002017-10-012018-09-30tse-ed-t:ThirdQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:LowerMember605002017-10-012018-09-30tse-ed-t:ThirdQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:UpperMember605002017-10-012018-09-30tse-ed-t:ThirdQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:ForecastMember605002017-10-012018-09-30tse-ed-t:ThirdQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:LowerMember605002017-10-012018-09-30tse-ed-t:ThirdQuarterMembertse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:UpperMember605002017-10-012018-09-30tse-ed-t:YearEndMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ForecastMember605002017-10-012018-09-30tse-ed-t:YearEndMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:LowerMember605002017-10-012018-09-30tse-ed-t:YearEndMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:UpperMember605002017-10-012018-09-30tse-ed-t:YearEndMembertse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:ForecastMember605002017-10-012018-09-30tse-ed-t:YearEndMembertse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:LowerMember605002017-10-012018-09-30tse-ed-t:YearEndMembertse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:UpperMember605002017-10-012018-09-30tse-ed-t:AnnualMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ForecastMember605002017-10-012018-09-30tse-ed-t:AnnualMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:LowerMember605002017-10-012018-09-30tse-ed-t:AnnualMembertse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:UpperMember605002017-10-012018-09-30tse-ed-t:AnnualMembertse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:ForecastMember605002017-10-012018-09-30tse-ed-t:AnnualMembertse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:LowerMember605002017-10-012018-09-30tse-ed-t:AnnualMembertse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:UpperMember605002018-09-30iso4217:JPYxbrli:shares