XML 104 R92.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Business Segment Information (Property Plant And Equipment Net Of Depreciation By Geographic Region) (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
--- | --- | --- | ---
Segment Reporting Information [Line Items] |  |  |
Property and equipment, net | $ 1,735,384 us-gaap_PropertyPlantAndEquipmentNet | $ 1,532,217 us-gaap_PropertyPlantAndEquipmentNet | $ 1,485,875 us-gaap_PropertyPlantAndEquipmentNet
United States [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Property and equipment, net | 913,422 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = hlx_UnitedStatesMember | 1,119,075 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = hlx_UnitedStatesMember | 1,180,586 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = hlx_UnitedStatesMember
United Kingdom [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Property and equipment, net | 355,996 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = hlx_UnitedKingdomMember | 336,317 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = hlx_UnitedKingdomMember | 304,062 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = hlx_UnitedKingdomMember
Luxembourg [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Property and equipment, net | 465,875 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = hlx_LuxembourgMember | 76,749 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = hlx_LuxembourgMember |
Other [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Property and equipment, net | $ 91 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = hlx_OtherGeographicRegionMember | $ 76 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = hlx_OtherGeographicRegionMember | $ 1,227 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = hlx_OtherGeographicRegionMember

X
- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 13 -Subparagraph a -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 8 -Article 7 + Details
Name: | us-gaap_PropertyPlantAndEquipmentNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatementGeographicalAxis=hlx_LuxembourgMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=hlx_OtherGeographicRegionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=hlx_UnitedKingdomMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=hlx_UnitedStatesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |