XML 61 R48.htm IDEA: XBRL DOCUMENT
v3.5.0.2

Contingencies (Narrative) (Details) $ in Millions | 6 Months Ended
--- | ---
Jun. 30, 2016 USD ($) plaintiffs
Oil and Gas Delivery Commitments and Contracts [Line Items] |
Loss Contingency, Number of Plaintiffs | 46
Loss Contingency, Claims Settled, Number | 58
Loss Contingency, Claims Settled Pending Documentation, Number | 13
Letters of Credit Outstanding, Amount | $ | $ 72.3

X
- Definition Loss Contingency, Claims Settled Pending Documentation, Number + References No definition available. + Details
Name: | esv_LossContingencyClaimsSettledPendingDocumentationNumber
Namespace Prefix: | esv_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
Name: | us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Number of claims settled. + References No definition available. + Details
Name: | us-gaap_LossContingencyClaimsSettledNumber
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of plaintiffs that have filed claims pertaining to a loss contingency. + References No definition available. + Details
Name: | us-gaap_LossContingencyNumberOfPlaintiffs
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_OilAndGasDeliveryCommitmentsAndContractsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration