XML 119 R27.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Equity Investments (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2014
Equity Investments [Abstract] |
Distributions From Equity Investments |
|  | Year Ended December 31, |
|  | 2014 |  | 2013 |  | 2012 |
Deepwater Gateway | $ | 6,150 | $ | 7,600 | $ | 8,157 |
Independence Hub |  | 2,640 |  | 4,660 |  | 8,073 |
Total | $ | 8,790 | $ | 12,260 | $ | 16,230 |

X
- Definition Schedule of distributions from equity investments [Table Text Block] + References No definition available. + Details
Name: | hlx_ScheduleOfDistributionsFromEquityInvestmentsTableTextBlock
Namespace Prefix: | hlx_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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