XML 128 R114.htm IDEA: XBRL DOCUMENT
v3.19.1

Commitments, Contingencies and Litigation - Additional Information (Detail) € in Thousands |  | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Jun. 11, 2013 USD ($) | Jun. 11, 2013 EUR (€) | Jul. 31, 2017 USD ($) | Jun. 30, 2017 USD ($) | Mar. 31, 2016 USD ($) | Dec. 30, 2018 USD ($) | Mar. 31, 2018 USD ($) | Mar. 31, 2018 EUR (€) | Mar. 31, 2019 USD ($) Employee | Mar. 31, 2018 USD ($)
Commitments, Contingencies And Litigation [Line Items] |  |  |  |  |  |  |  |  |  |
Reserves for anti-competition investigations |  |  |  |  |  |  | $ 2,326,000 |  | $ 7,258,000 | $ 2,326,000
Reserves of environmental liabilities |  |  |  |  |  |  |  |  | $ 1,081,000 | 1,109,000
Company number of employees | Employee |  |  |  |  |  |  |  |  | 11,000 |
Percentage of employees covered by collective bargaining agreements |  |  |  |  |  |  |  |  | 27.00% |
Percentage of collective bargaining agreements that expire in next twelve months |  |  |  |  |  |  |  |  | 10.00% |
Average term of collective bargaining agreements |  |  |  |  |  |  |  |  | 2 years |
Longest term of collective bargaining agreements |  |  |  |  |  |  |  |  | 3 years |
Litigation Settlement, Amount Awarded from Other Party | $ 2,756,000 | € 2,000 |  |  |  | $ 2,843 |  |  |  |
Belgium Anti-Competition Proceeding |  |  |  |  |  |  |  |  |  |
Commitments, Contingencies And Litigation [Line Items] |  |  |  |  |  |  |  |  |  |
Penalties paid relating to anti-competition investigations |  |  |  |  | $ 1,962,000 |  |  |  |  |
Legal proceedings charge |  |  |  |  |  |  |  |  | $ 2,402 |
Reserves for anti-competition investigations |  |  |  |  |  |  | 2,326,000 |  | 0 | 2,326,000
Germany Anti-competition Proceedings |  |  |  |  |  |  |  |  |  |
Commitments, Contingencies And Litigation [Line Items] |  |  |  |  |  |  |  |  |  |
Penalties paid relating to anti-competition investigations |  |  |  | $ 14,811,000 |  |  |  |  |  |
Legal proceedings charge |  |  |  |  |  |  |  |  | 7,258,000 |
Reserves for anti-competition investigations |  |  |  |  |  |  | 0 |  | $ 7,258,000 | $ 0
Dutch Anti-Competition Proceedings [Member] |  |  |  |  |  |  |  |  |  |
Commitments, Contingencies And Litigation [Line Items] |  |  |  |  |  |  |  |  |  |
Penalties paid relating to anti-competition investigations |  |  | $ 11,229,000 |  |  |  |  |  |  |
Settled Litigation [Member] |  |  |  |  |  |  |  |  |  |
Commitments, Contingencies And Litigation [Line Items] |  |  |  |  |  |  |  |  |  |
Litigation Settlement, Amount Awarded from Other Party |  |  |  |  |  |  | $ 2,843,000 | € 2,500 |  |

X
- Definition Number of persons employed by the Entity + References No definition available. + Details
Name: | dei_EntityNumberOfEmployees
Namespace Prefix: | dei_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Average term of collective bargaining agreements. + References No definition available. + Details
Name: | ens_AverageTermOfCollectiveBargainingAgreements
Namespace Prefix: | ens_
Data Type: | us-types:durationStringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Commitments, Contingencies And Litigation [Line Items] + References No definition available. + Details
Name: | ens_CommitmentsContingenciesAndLitigationLineItems
Namespace Prefix: | ens_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Longest term of collective bargaining agreements. + References No definition available. + Details
Name: | ens_LongestTermOfCollectiveBargainingAgreements
Namespace Prefix: | ens_
Data Type: | us-types:durationStringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Penalties paid relating to anti-competition investigations + References No definition available. + Details
Name: | ens_Penaltiespaidrelatingtoanticompetitioninvestigations
Namespace Prefix: | ens_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Percentage of employees covered by collective bargaining agreements. + References No definition available. + Details
Name: | ens_PercentageOfEmployeesCoveredByCollectiveBargainingAgreements
Namespace Prefix: | ens_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage Of Employees In Party To Collective Bargaining Agreements Schedule To Expire In Next Year + References No definition available. + Details
Name: | ens_PercentageOfEmployeesInPartyToCollectiveBargainingAgreementsScheduleToExpireInNextYear
Namespace Prefix: | ens_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Provision for environmental liabilities + References No definition available. + Details
Name: | ens_ProvisionForEnvironmentalLiabilities
Namespace Prefix: | ens_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Reserves for anti-competition investigations + References No definition available. + Details
Name: | ens_Reservesforanticompetitioninvestigations
Namespace Prefix: | ens_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount awarded from other party in judgment or settlement of litigation. + References No definition available. + Details
Name: | us-gaap_LitigationSettlementAmountAwardedFromOtherParty
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount awarded to other party in judgment or settlement of litigation. + References No definition available. + Details
Name: | us-gaap_LitigationSettlementAmountAwardedToOtherParty
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_LossContingenciesByNatureOfContingencyAxis=ens_BelgiumAntiCompetitionProceedingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LossContingenciesByNatureOfContingencyAxis=ens_GermanyAnticompetitionProceedingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LossContingenciesByNatureOfContingencyAxis=ens_DutchAntiCompetitionProceedingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LitigationStatusAxis=us-gaap_SettledLitigationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |