XML 13 R53.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Employee Benefit Plans (Narrative) (Details) (USD $) Share data in Millions, unless otherwise specified | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Mar. 31, 2015 | Mar. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Jan. 31, 2015 | Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Shares available for grant | 5.6 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant |  |  |  |  |  |
Compensation cost related to restricted shares | $ 1,400,000 us-gaap_RestrictedStockExpense | $ 1,200,000 us-gaap_RestrictedStockExpense |  |  |  |  |
Deferred compensation arrangement with individual, distributions paid |  |  |  |  |  | 4,500,000 us-gaap_DeferredCompensationArrangementWithIndividualDistributionsPaid |
Deferred compensation arrangement, vesting period |  |  |  | 3 years | 5 years |  |
Deferred compensation arrangement, cash awards granted, amount | 0 us-gaap_DeferredCompensationArrangementWithIndividualCashAwardGrantedAmount |  |  |  |  |  | 8,900,000 us-gaap_DeferredCompensationArrangementWithIndividualCashAwardGrantedAmount
Deferred compensation arrangement, compensation expense |  | 1,700,000 us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense |  |  |  |  |
Deferred compensation cash-based arrangement, liability | 2,000,000 us-gaap_DeferredCompensationCashbasedArrangementsLiabilityCurrentAndNoncurrent |  |  |  |  |  | 12,800,000 us-gaap_DeferredCompensationCashbasedArrangementsLiabilityCurrentAndNoncurrent
Percentage of share of non-vested stock considered as call option | 85.00%hlx_PercentageOfShareOfNonVestedStockConsideredAsCallOption |  |  |  |  |  |
Percentage of share of non-vested stock considered as put-option | 15.00%hlx_PercentageOfShareOfNonVestedStockConsideredAsPutOption |  |  |  |  |  |
Share-based payment award, vesting period | 3 years |  | 3 years |  |  |  |
Performance Shares [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Allocated share-based compensation expense |  | 500,000 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember |  |  |  |  |
Share-based payment award, vesting period | 3 years |  |  |  |  |  |
E S P P [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Shares available for grant | 1.1 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant / us-gaap_AwardTypeAxis = hlx_ESPPMember |  |  |  |  |  |
Allocated share-based compensation expense | 300,000 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = hlx_ESPPMember | 200,000 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = hlx_ESPPMember |  |  |  |  |
Shares authorized for issuance | 1.5 us-gaap_DeferredCompensationArrangementWithIndividualSharesAuthorizedForIssuance / us-gaap_AwardTypeAxis = hlx_ESPPMember |  |  |  |  |  |
Scenario, Adjustment [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Deferred compensation arrangement, compensation expense | (1,900,000)us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense / us-gaap_StatementScenarioAxis = us-gaap_ScenarioAdjustmentMember |  |  |  |  |  |
Scenario, Adjustment [Member] | Performance Shares [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Allocated share-based compensation expense | $ (1,000,000)us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / us-gaap_StatementScenarioAxis = us-gaap_ScenarioAdjustmentMember |  |  |  |  |  |

X
- Definition The vesting period of the cash awards under the LTI plan. + References No definition available. + Details
Name: | hlx_DeferredCompensationArrangementWithIndividualAwardVestingPeriod
Namespace Prefix: | hlx_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of share of non-vested stock considered as call-option. + References No definition available. + Details
Name: | hlx_PercentageOfShareOfNonVestedStockConsideredAsCallOption
Namespace Prefix: | hlx_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of share of non-vested stock considered as put-option. + References No definition available. + Details
Name: | hlx_PercentageOfShareOfNonVestedStockConsideredAsPutOption
Namespace Prefix: | hlx_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F + Details
Name: | us-gaap_AllocatedShareBasedCompensationExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of commitment made to pay deferred cash remuneration. + References No definition available. + Details
Name: | us-gaap_DeferredCompensationArrangementWithIndividualCashAwardGrantedAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The compensation expense recognized during the period pertaining to the deferred compensation arrangement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 710 -SubTopic 10 -Section 30 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20015-108363 + Details
Name: | us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of distributions made to the individual during the period. + References No definition available. + Details
Name: | us-gaap_DeferredCompensationArrangementWithIndividualDistributionsPaid
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The maximum number of shares authorized for issuance under the deferred compensation arrangement as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_DeferredCompensationArrangementWithIndividualSharesAuthorizedForIssuance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Aggregate carrying value as of the balance sheet date of the liabilities for deferred compensation arrangements. Represents currently earned compensation under cash arrangements (such as a profit-sharing plan, rabbi trust, and employee contract--excluding equity-based arrangements) that is not actually paid until a later date. + References No definition available. + Details
Name: | us-gaap_DeferredCompensationCashbasedArrangementsLiabilityCurrentAndNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The noncash expense that represents the cost of restricted stock or unit distributed to employees as compensation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
Name: | us-gaap_RestrictedStockExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_AwardTypeAxis=hlx_ESPPMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_PerformanceSharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementScenarioAxis=us-gaap_ScenarioAdjustmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |