2020-03-31862202018-04-012018-09-30tse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ResultMember862202019-04-012019-09-30tse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:ForecastMember862202019-04-012019-09-30tse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:LowerMember862202019-04-012019-09-30tse-ed-t:NonConsolidatedMembertse-ed-t:CurrentMembertse-ed-t:UpperMember862202019-04-012019-09-30tse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:ForecastMember862202019-04-012019-09-30tse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:LowerMember862202019-04-012019-09-30tse-ed-t:NonConsolidatedMembertse-ed-t:PreviousMembertse-ed-t:UpperMember862202019-04-012020-03-31862202020-03-31iso4217:JPYxbrli:pureiso4217:JPYxbrli:shares