$HLX
HELIX ENERGY SOLUTIONS GROUP INC Stock $hlx

$hlx Overview Financials Valuation SEC Filings Company Website

2020 Q2 Form 10-Q Financial Statement

#000086682920000025 Filed on July 24, 2020

Income Statement

Concept	2020 Q2	2019 Q2	2019 Q1
Revenue	$199.1M	$201.7M	$166.8M
YoY Change	-1.28%	-1.42%	1.56%
Cost Of Revenue	$169.6M	$161.8M	$150.6M
YoY Change	4.81%	0.04%	-0.47%
Gross Profit	$29.58M	$39.93M	$16.25M
YoY Change	-25.94%	-6.91%	25.19%
Gross Profit Margin	14.85%	19.8%	9.74%
Selling, General & Admin	$15.86M	$16.86M	$15.99M
YoY Change	-5.97%	-6.97%	13.38%
% of Gross Profit	53.61%	42.22%	98.35%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$34.00M	$28.00M	$28.51M
YoY Change	21.43%	0.36%	2.62%
% of Gross Profit	114.96%	70.12%	175.4%
Operating Expenses	$15.86M	$16.86M	$15.99M
YoY Change	-5.97%	-6.97%	13.38%
Operating Profit	$14.19M	$23.07M	$269.0K
YoY Change	-38.48%	-6.86%	-124.1%
Interest Expense	$7.179M	$8.045M	$7.896M
YoY Change	-10.76%	0.05%	-4.86%
% of Operating Profit	50.58%	34.87%	2935.32%
Other Income/Expense, Net	-$2.069M	-$1.311M	$1.166M
YoY Change	57.82%	-61.9%	26.05%
Pretax Income	$5.179M	$19.70M	$1.642M
YoY Change	-73.71%	8.94%	-166.4%
Income Tax	-$271.0K	$2.876M	$324.0K
% Of Pretax Income	-5.23%	14.6%	19.73%
Net Earnings	$5.450M	$16.85M	$1.318M
YoY Change	-67.66%	-5.23%	-151.48%
Net Earnings / Revenue	2.74%	8.35%	0.79%
Basic Earnings Per Share	$0.04	$0.11	$0.01
Diluted Earnings Per Share	$0.04	$0.11	$0.01
COMMON SHARES
Basic Shares Outstanding	149.0M	147.5M shares	147.4M shares
Diluted Shares Outstanding	149.7M	148.1M shares	147.8M shares

Balance Sheet

Concept	2020 Q2	2019 Q2	2019 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments	$178.4M	$261.1M	$220.0M
YoY Change	-31.67%	-9.5%	-19.71%
Cash & Equivalents	$178.4M	$261.1M	$220.0M
Short-Term Investments
Other Short-Term Assets	$91.82M	$77.76M	$87.18M
YoY Change	18.07%	50.94%	88.56%
Inventory
Prepaid Expenses	$11.00M	$15.22M	$16.96M
Receivables	$165.9M	$79.92M	$102.1M
Other Receivables	$47.50M	$26.00M	$26.00M
Total Short-Term Assets	$478.3M	$489.9M	$450.6M
YoY Change	-2.38%	-1.36%	2.06%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.779B	$1.804B	$1.818B
YoY Change	-1.38%	1.12%	0.88%
Goodwill	$0.00	$6.763M
YoY Change	-100.0%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$52.20M	$98.71M	$98.28M
YoY Change	-47.12%	15.01%	3.02%
Total Long-Term Assets	$2.006B	$2.130B	$2.157B
YoY Change	-5.81%	13.91%	13.65%
TOTAL ASSETS
Total Short-Term Assets	$478.3M	$489.9M	$450.6M
Total Long-Term Assets	$2.006B	$2.130B	$2.157B
Total Assets	$2.485B	$2.620B	$2.607B
YoY Change	-5.17%	10.71%	11.46%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$71.40M	$76.54M	$63.85M
YoY Change	-6.71%	9.93%	-10.98%
Accrued Expenses	$80.27M	$84.61M	$81.84M
YoY Change	-5.13%	4.35%	27.09%
Deferred Revenue	$10.53M	$11.24M	$9.748M
YoY Change	-6.32%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$82.03M	$117.0M	$47.89M
YoY Change	-29.91%	153.59%	3.0%
Total Short-Term Liabilities	$286.7M	$332.6M	$248.8M
YoY Change	-13.8%	67.71%	36.26%
LONG-TERM LIABILITIES
Long-Term Debt	$304.8M	$307.5M	$381.3M
YoY Change	-0.85%	-25.53%	-9.4%
Other Long-Term Liabilities	$6.286M	$41.28M	$48.43M
YoY Change	-84.77%	-11.6%	27.12%
Total Long-Term Liabilities	$311.1M	$348.7M	$429.7M
YoY Change	-10.79%	-24.11%	-6.37%
TOTAL LIABILITIES
Total Short-Term Liabilities	$286.7M	$332.6M	$248.8M
Total Long-Term Liabilities	$311.1M	$348.7M	$429.7M
Total Liabilities	$826.6M	$968.4M	$977.5M
YoY Change	-14.65%	26.68%	30.31%
SHAREHOLDERS EQUITY
Retained Earnings	$436.1M	$405.7M	$388.9M
YoY Change	7.48%	9.76%	10.53%
Common Stock	$1.319B	$1.314B	$1.311B
YoY Change	0.33%	0.78%	0.73%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.655B	$1.648B	$1.630B
YoY Change
Total Liabilities & Shareholders Equity	$2.485B	$2.620B	$2.607B
YoY Change	-5.17%	10.71%	11.46%

Cashflow Statement

Concept	2020 Q2	2019 Q2	2019 Q1
OPERATING ACTIVITIES
Net Income	$5.450M	$16.85M	$1.318M
YoY Change	-67.66%	-5.23%	-151.48%
Depreciation, Depletion And Amortization	$34.00M	$28.00M	$28.51M
YoY Change	21.43%	0.36%	2.62%
Cash From Operating Activities	$23.20M	$66.80M	-$34.25M
YoY Change	-65.27%	43.04%	-183.53%
INVESTING ACTIVITIES
Capital Expenditures	-$5.200M	-$15.80M	-$11.70M
YoY Change	-67.09%	-24.04%	-44.81%
Acquisitions
YoY Change
Other Investing Activities	$500.0K	-$1.300M	$326.0K
YoY Change	-138.46%
Cash From Investing Activities	-$4.700M	-$17.00M	-$11.96M
YoY Change	-72.35%	-18.27%	-43.6%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-9.700M	-8.400M	-$14.06M
YoY Change	15.48%	-17.65%	9.8%
NET CHANGE
Cash From Operating Activities	23.20M	66.80M	-$34.25M
Cash From Investing Activities	-4.700M	-17.00M	-$11.96M
Cash From Financing Activities	-9.700M	-8.400M	-$14.06M
Net Change In Cash	8.800M	41.40M	-$59.44M
YoY Change	-78.74%	163.69%	-949.09%
FREE CASH FLOW
Cash From Operating Activities	$23.20M	$66.80M	-$34.25M
Capital Expenditures	-$5.200M	-$15.80M	-$11.70M
Free Cash Flow	$28.40M	$82.60M	-$22.55M
YoY Change	-65.62%	22.37%	-136.25%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Entity Central Index Key EntityCentralIndexKey	0000866829
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q2
	dei	Amendment Flag AmendmentFlag	false
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CY2020Q2	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2020Q2	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2020-06-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	001-32936
	dei	Entity Registrant Name EntityRegistrantName	HELIX ENERGY SOLUTIONS GROUP, INC.
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MN
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	95-3409686
	dei	Entity Address Address Line1 EntityAddressAddressLine1	3505 West Sam Houston Parkway North
	dei	Entity Address Address Line2 EntityAddressAddressLine2	Suite 400
	dei	Entity Address City Or Town EntityAddressCityOrTown	Houston
	dei	Entity Address State Or Province EntityAddressStateOrProvince	TX
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	77043
	dei	City Area Code CityAreaCode	281
	dei	Local Phone Number LocalPhoneNumber	618–0400
	dei	Security12b Title Security12bTitle	Common Stock
	dei	Trading Symbol TradingSymbol	HLX
	dei	Security Exchange Name SecurityExchangeName	NYSE
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
CY2020Q3	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	150059233	shares
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	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	147931000	shares
CY2020Q2	us-gaap	Profit Loss ProfitLoss	5450000	USD
CY2019Q2	us-gaap	Profit Loss ProfitLoss	16823000	USD
	us-gaap	Profit Loss ProfitLoss	-8478000	USD
	us-gaap	Profit Loss ProfitLoss	18141000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	1000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	-278000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	-95000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	-427000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax	-25000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax	-1975000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax	-452000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax	-3821000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	6000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	340000	USD
	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	72000	USD
	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	682000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	20000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	1357000	USD
	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	285000	USD
	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	2712000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-1896000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-3065000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-35483000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-263000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-1876000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-1708000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-35198000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	2449000	USD
CY2020Q2	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	3574000	USD
CY2019Q2	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	15115000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-43676000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	20590000	USD
CY2020Q2	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	0	USD
CY2019Q2	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	-31000	USD
	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	-1990000	USD
	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	-31000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest	-20000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest	0	USD
	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest	-248000	USD
	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest	0	USD
CY2020Q2	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-20000	USD
CY2019Q2	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-31000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-2238000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-31000	USD
CY2020Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	3594000	USD
CY2019Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	15146000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-41438000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	20621000	USD
CY2020Q1	us-gaap	Stockholders Equity StockholdersEquity	1649065000	USD
CY2020Q1	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	3323000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	5450000	USD
CY2020Q2	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	0	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-1896000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest	-20000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	20000	USD
CY2020Q2	hlx	Accretion Of Redeemable Noncontrolling Interests AccretionOfRedeemableNoncontrollingInterests	69000	USD
CY2020Q2	us-gaap	Temporary Equity Accretion To Redemption Value TemporaryEquityAccretionToRedemptionValue	69000	USD
CY2020Q2	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	217000	USD
CY2020Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	1913000	USD
CY2020Q2	us-gaap	Stockholders Equity StockholdersEquity	1654700000	USD
CY2020Q2	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	3372000	USD
CY2019Q1	us-gaap	Stockholders Equity StockholdersEquity	1629843000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	16854000	USD
CY2019Q2	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	-31000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-3065000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	1357000	USD
CY2019Q2	us-gaap	Noncontrolling Interest Increase From Subsidiary Equity Issuance NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance	3396000	USD
CY2019Q2	hlx	Accretion Of Redeemable Noncontrolling Interests AccretionOfRedeemableNoncontrollingInterests	18000	USD
CY2019Q2	us-gaap	Temporary Equity Accretion To Redemption Value TemporaryEquityAccretionToRedemptionValue	18000	USD
CY2019Q2	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-320000	USD
CY2019Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3745000	USD
CY2019Q2	us-gaap	Stockholders Equity StockholdersEquity	1648396000	USD
CY2019Q2	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	3383000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	1699591000	USD
CY2019Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	3455000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-6488000	USD
	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	-1990000	USD
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	620000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-35483000	USD
	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest	-248000	USD
	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	285000	USD
	hlx	Accretion Of Redeemable Noncontrolling Interests AccretionOfRedeemableNoncontrollingInterests	2155000	USD
	us-gaap	Temporary Equity Accretion To Redemption Value TemporaryEquityAccretionToRedemptionValue	2155000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-4513000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	4083000	USD
CY2020Q2	us-gaap	Stockholders Equity StockholdersEquity	1654700000	USD
CY2020Q2	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	3372000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	1617779000	USD
	us-gaap	Net Income Loss NetIncomeLoss	18172000	USD
	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	-31000	USD
	hlx	Reclassification Of Deferred Gain From Sale And Leaseback Transaction To Retained Earnings ReclassificationOfDeferredGainFromSaleAndLeasebackTransactionToRetainedEarnings	4560000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-263000	USD
	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	2712000	USD
	us-gaap	Noncontrolling Interest Increase From Subsidiary Equity Issuance NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance	3396000	USD
	hlx	Accretion Of Redeemable Noncontrolling Interests AccretionOfRedeemableNoncontrollingInterests	18000	USD
	us-gaap	Temporary Equity Accretion To Redemption Value TemporaryEquityAccretionToRedemptionValue	18000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-979000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	6433000	USD
CY2019Q2	us-gaap	Stockholders Equity StockholdersEquity	1648396000	USD
CY2019Q2	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	3383000	USD
	us-gaap	Profit Loss ProfitLoss	-8478000	USD
	us-gaap	Profit Loss ProfitLoss	18141000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	65567000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	56512000	USD
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	6689000	USD
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	3316000	USD
	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	3070000	USD
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1619000	USD
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1896000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	4245000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	6501000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-7098000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	845000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-22000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-69000	USD
	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	473000	USD
	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	0	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-18000	USD
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	601000	USD
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	1740000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	-10433000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	568000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	44698000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	30656000	USD
	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	19078000	USD
	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	3122000	USD
	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	23751000	USD
	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	2957000	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	35219000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	279459000	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	665000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	16891000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	16113000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	6042000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	32561000	USD
	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	17579000	USD
	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	27458000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	4081000	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	498000	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	2525000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-17081000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-29014000	USD
	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	0	USD
	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	35000000	USD
	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	1750000	USD
	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	33692000	USD
	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	17858000	USD
	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	17857000	USD
	hlx	Repayments Of Long Term Secured Debt RepaymentsOfLongTermSecuredDebt	3556000	USD
	hlx	Repayments Of Long Term Secured Debt RepaymentsOfLongTermSecuredDebt	3387000	USD
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	310000	USD
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	1485000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	5150000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1329000	USD
	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	475000	USD
	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	281000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-28149000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-22469000	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-2879000	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	605000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-42067000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-18317000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	262561000	USD
CY2020Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	220494000	USD
CY2019Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	261142000	USD
	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	Certain reclassifications were made to previously reported amounts in the consolidated financial statements and notes thereto to make them consistent with the current presentation format.
	us-gaap	Nature Of Operations NatureOfOperations	<div style="text-align:justify;margin-top:10pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%;">Note 2 — Company Overview</span></div><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;"> </span></div><div style="text-indent:36pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:115%;">We are an international offshore energy services company that provides specialty services to the offshore energy industry, with a focus on well intervention and robotics operations. We provide services and methodologies that we believe are critical to maximizing production economics. Our services cover the lifecycle of an offshore oil or gas field. Our services also include subsea cable burial and seabed clearing services for the offshore renewable energy sector. We provide services primarily in deepwater in the Gulf of Mexico, Brazil, North Sea, Asia Pacific and West Africa regions. Our services are segregated into three reportable business segments: Well Intervention, Robotics and Production Facilities (Note 13).</span></div><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;"> </span></div><div style="text-indent:36pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">Our Well Intervention segment includes our vessels and/or equipment used to perform well intervention services primarily in the Gulf of Mexico, Brazil, the North Sea and West Africa. Our well intervention vessels include the </span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%;">Q4000</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">, the </span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%;">Q5000</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">, the </span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%;">Q7000</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">, the </span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%;">Seawell</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">, the</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%;"> Well Enhancer</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">, and two chartered monohull vessels, the </span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%;">Siem H</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">elix </span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%;">1</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;"> and the </span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%;">Siem Helix 2</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">. Our well intervention equipment includes intervention riser systems (“IRSs”) and subsea intervention lubricators (“SILs”), some of which we provide on a stand-alone basis.</span></div><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;"> </span></div><div style="text-indent:36pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">Our Robotics segment includes remotely operated vehicles (“ROVs”), trenchers and a ROVDrill, which are designed to complement well intervention services and offshore construction to both the oil and gas and the renewable energy markets. Our Robotics segment also includes two robotics support vessels under long-term charter, the </span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%;">Grand Canyon II</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;"> and the </span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%;">Grand Canyon III</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">, as well as spot vessels as needed, including the </span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%;">Ross Candies</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">, which is under a flexible charter agreement through August 2020.</span></div><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;"> </span></div><div style="text-indent:36pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">Our Production Facilities segment includes the </span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%;">Helix Producer</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;"> </span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%;">I</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;"> (the “</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%;">HP I</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">”), a ship-shaped dynamically positioned floating production vessel, the Helix Fast Response System (the “HFRS”), our ownership interest in Independence Hub, LLC (“Independence Hub”) (Note 4), and our ownership of oil and gas properties. All of our current production facilities activities are located in the Gulf of Mexico.</span></div><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;"> </span></div><div style="text-indent:36pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">On May 29, 2019, we acquired a 70% controlling interest in Subsea Technologies Group Limited (“STL”), a subsea engineering firm based in Aberdeen, Scotland, for $5.1 million. The holders of the remaining 30% noncontrolling interest have the right to put their shares to us in June 2024. These redeemable noncontrolling interests were recognized as temporary equity at their estimated fair value of $3.4 million at the acquisition date. In March 2020, we recorded an impairment loss to write off the goodwill associated with the STL acquisition (Note 6). STL is included in our Well Intervention segment (Note 13) and its revenue and earnings are immaterial to our consolidated results.</span></div>
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	segment
CY2020Q2	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	443000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	740000	USD
CY2020Q2	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	11001000	USD
CY2019Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	12635000	USD
CY2020Q2	us-gaap	Capitalized Contract Cost Net Current CapitalizedContractCostNetCurrent	25774000	USD
CY2019Q4	us-gaap	Capitalized Contract Cost Net Current CapitalizedContractCostNetCurrent	28340000	USD
CY2020Q2	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	18927000	USD
CY2019Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	1261000	USD
CY2020Q2	us-gaap	Nontrade Receivables Current NontradeReceivablesCurrent	28541000	USD
CY2019Q4	us-gaap	Nontrade Receivables Current NontradeReceivablesCurrent	0	USD
CY2020Q2	us-gaap	Other Assets Miscellaneous Current OtherAssetsMiscellaneousCurrent	7132000	USD
CY2019Q4	us-gaap	Other Assets Miscellaneous Current OtherAssetsMiscellaneousCurrent	7474000	USD
CY2020Q2	us-gaap	Other Assets Current OtherAssetsCurrent	91818000	USD
CY2019Q4	us-gaap	Other Assets Current OtherAssetsCurrent	50450000	USD
CY2020Q2	us-gaap	Prepaid Expense Noncurrent PrepaidExpenseNoncurrent	611000	USD
CY2019Q4	us-gaap	Prepaid Expense Noncurrent PrepaidExpenseNoncurrent	777000	USD
CY2020Q2	hlx	Deferred Recertification And Dry Dock Costs Net DeferredRecertificationAndDryDockCostsNet	27020000	USD
CY2019Q4	hlx	Deferred Recertification And Dry Dock Costs Net DeferredRecertificationAndDryDockCostsNet	16065000	USD
CY2020Q2	us-gaap	Capitalized Contract Cost Net Noncurrent CapitalizedContractCostNetNoncurrent	6289000	USD
CY2019Q4	us-gaap	Capitalized Contract Cost Net Noncurrent CapitalizedContractCostNetNoncurrent	14531000	USD
CY2020Q2	us-gaap	Deposits Assets Noncurrent DepositsAssetsNoncurrent	12544000	USD
CY2019Q4	us-gaap	Deposits Assets Noncurrent DepositsAssetsNoncurrent	12544000	USD
CY2020Q2	us-gaap	Nontrade Receivables Noncurrent NontradeReceivablesNoncurrent	0	USD
CY2019Q4	us-gaap	Nontrade Receivables Noncurrent NontradeReceivablesNoncurrent	27264000	USD
CY2020Q2	us-gaap	Goodwill Goodwill	0	USD
CY2019Q4	us-gaap	Goodwill Goodwill	7157000	USD
CY2020Q2	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	3645000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	3847000	USD
CY2020Q2	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	2087000	USD
CY2019Q4	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	2323000	USD
CY2020Q2	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	52196000	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	84508000	USD
CY2020Q2	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	21800000	USD
CY2019Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	31417000	USD
CY2020Q2	hlx	Investee Losses In Excess Of Investment Current InvesteeLossesInExcessOfInvestmentCurrent	2248000	USD
CY2019Q4	hlx	Investee Losses In Excess Of Investment Current InvesteeLossesInExcessOfInvestmentCurrent	4069000	USD
CY2020Q2	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	10530000	USD
CY2019Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	11568000	USD
CY2020Q2	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	29562000	USD
CY2019Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	0	USD
CY2020Q2	us-gaap	Hedging Liabilities Current HedgingLiabilitiesCurrent	0	USD
CY2019Q4	us-gaap	Hedging Liabilities Current HedgingLiabilitiesCurrent	1002000	USD
CY2020Q2	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	16128000	USD
CY2019Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	14333000	USD
CY2020Q2	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	80268000	USD
CY2019Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	62389000	USD
CY2020Q2	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	4262000	USD
CY2019Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	8286000	USD
CY2020Q2	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	0	USD
CY2019Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	28258000	USD
CY2020Q2	us-gaap	Other Accrued Liabilities Noncurrent OtherAccruedLiabilitiesNoncurrent	2024000	USD
CY2019Q4	us-gaap	Other Accrued Liabilities Noncurrent OtherAccruedLiabilitiesNoncurrent	2100000	USD
CY2020Q2	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	6286000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	38644000	USD
CY2020Q2	us-gaap	Operating Lease Cost OperatingLeaseCost	16106000	USD
CY2019Q2	us-gaap	Operating Lease Cost OperatingLeaseCost	18056000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	32429000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	36189000	USD
CY2020Q2	us-gaap	Variable Lease Cost VariableLeaseCost	3840000	USD
CY2019Q2	us-gaap	Variable Lease Cost VariableLeaseCost	3222000	USD
	us-gaap	Variable Lease Cost VariableLeaseCost	7052000	USD
	us-gaap	Variable Lease Cost VariableLeaseCost	6297000	USD
CY2020Q2	us-gaap	Short Term Lease Cost ShortTermLeaseCost	9992000	USD
CY2019Q2	us-gaap	Short Term Lease Cost ShortTermLeaseCost	4804000	USD
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	17166000	USD
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	8962000	USD
CY2020Q2	us-gaap	Sublease Income SubleaseIncome	328000	USD
CY2019Q2	us-gaap	Sublease Income SubleaseIncome	373000	USD
	us-gaap	Sublease Income SubleaseIncome	607000	USD
	us-gaap	Sublease Income SubleaseIncome	726000	USD
CY2020Q2	us-gaap	Lease Cost LeaseCost	29610000	USD
CY2019Q2	us-gaap	Lease Cost LeaseCost	25709000	USD
	us-gaap	Lease Cost LeaseCost	56040000	USD
	us-gaap	Lease Cost LeaseCost	50722000	USD
CY2020Q2	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	32967000	USD
CY2020Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	59945000	USD
CY2020Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	57199000	USD
CY2020Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	39142000	USD
CY2020Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	6766000	USD
CY2020Q2	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	5937000	USD
CY2020Q2	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	201956000	USD
CY2020Q2	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	23950000	USD
CY2020Q2	us-gaap	Operating Lease Liability OperatingLeaseLiability	178006000	USD
CY2020Q2	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	53023000	USD
CY2020Q2	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	124983000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	66820000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	60452000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	57363000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	39202000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	6819000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	6251000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	236907000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	31295000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	205612000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	53785000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	151827000	USD
CY2020Q2	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P3Y6M
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P4Y
CY2020Q2	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0753
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0754
	us-gaap	Operating Lease Payments OperatingLeasePayments	32731000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	35784000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	671000	USD
CY2020Q2	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Rolling Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextRollingTwelveMonths	82306000	USD
CY2020Q2	us-gaap	Long Term Debt Maturities Repayments Of Principal In Rolling Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInRollingYearTwo	160746000	USD
CY2020Q2	us-gaap	Long Term Debt Maturities Repayments Of Principal In Rolling Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInRollingYearThree	8133000	USD
CY2020Q2	us-gaap	Long Term Debt Maturities Repayments Of Principal In Rolling Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInRollingYearFour	133538000	USD
CY2020Q2	us-gaap	Long Term Debt Maturities Repayments Of Principal In Rolling Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInRollingYearFive	8965000	USD
CY2020Q2	us-gaap	Long Term Debt Maturities Repayments Of Principal In Rolling After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInRollingAfterYearFive	19294000	USD
CY2020Q2	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	412982000	USD
CY2020Q2	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	19224000	USD
CY2020Q2	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	6896000	USD
CY2020Q2	us-gaap	Long Term Debt LongTermDebt	386862000	USD
CY2020Q2	us-gaap	Long Term Debt Current LongTermDebtCurrent	82028000	USD
CY2020Q2	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	304834000	USD
CY2020Q2	us-gaap	Interest Expense InterestExpense	7179000	USD
CY2019Q2	us-gaap	Interest Expense InterestExpense	8045000	USD
	us-gaap	Interest Expense InterestExpense	14573000	USD
	us-gaap	Interest Expense InterestExpense	15941000	USD
CY2020Q2	us-gaap	Interest Income Other InterestIncomeOther	116000	USD
CY2020Q2	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	1087000	USD
CY2019Q2	us-gaap	Interest Income Other InterestIncomeOther	675000	USD
	us-gaap	Interest Income Other InterestIncomeOther	582000	USD
	us-gaap	Interest Income Other InterestIncomeOther	1433000	USD
CY2020Q2	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	0	USD
CY2019Q2	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	5165000	USD
	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	1182000	USD
	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	10205000	USD
CY2020Q2	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	-7063000	USD
CY2019Q2	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	-2205000	USD
	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	-12809000	USD
	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	-4303000	USD
	hlx	Estimated Net Income Tax Benefit From Cares Act EstimatedNetIncomeTaxBenefitFromCARESAct	5200000	USD
	hlx	Estimated Current Income Tax Benefit From Cares Act EstimatedCurrentIncomeTaxBenefitFromCARESAct	15800000	USD
	hlx	Estimated Deferred Income Tax Expense From Cares Act EstimatedDeferredIncomeTaxExpenseFromCARESAct	10600000	USD
	hlx	Estimated Net Income Tax Benefit From Cares Act EstimatedNetIncomeTaxBenefitFromCARESAct	5200000	USD
CY2019Q2	hlx	Effective Income Tax Rate Reconciliation Cares Act Percent EffectiveIncomeTaxRateReconciliationCARESActPercent	0
CY2020Q2	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2019Q2	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	4137000	USD
CY2019Q2	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-6267000	USD
	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	4482000	USD
	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2020Q2	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-2166000	USD
CY2020Q2	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.418
CY2019Q2	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-1664000	USD
CY2019Q2	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.084
	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-1116000	USD
	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.037
	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-1914000	USD
	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.090
CY2020Q2	hlx	Effective Income Tax Rate Reconciliation Cares Act Amount EffectiveIncomeTaxRateReconciliationCARESActAmount	580000	USD
CY2020Q2	hlx	Effective Income Tax Rate Reconciliation Cares Act Percent EffectiveIncomeTaxRateReconciliationCARESActPercent	0.112
CY2019Q2	hlx	Effective Income Tax Rate Reconciliation Cares Act Amount EffectiveIncomeTaxRateReconciliationCARESActAmount	0	USD
	hlx	Effective Income Tax Rate Reconciliation Cares Act Amount EffectiveIncomeTaxRateReconciliationCARESActAmount	-5234000	USD
	hlx	Effective Income Tax Rate Reconciliation Cares Act Percent EffectiveIncomeTaxRateReconciliationCARESActPercent	0.176
	hlx	Effective Income Tax Rate Reconciliation Cares Act Amount EffectiveIncomeTaxRateReconciliationCARESActAmount	0	USD
	hlx	Effective Income Tax Rate Reconciliation Cares Act Percent EffectiveIncomeTaxRateReconciliationCARESActPercent	0
CY2020Q2	hlx	Effective Income Tax Reconciliation Subsidiary Restructuring Amount EffectiveIncomeTaxReconciliationSubsidiaryRestructuringAmount	0	USD
CY2020Q2	hlx	Effective Income Tax Reconciliation Subsidiary Restructuring Percent EffectiveIncomeTaxReconciliationSubsidiaryRestructuringPercent	0
CY2019Q2	hlx	Effective Income Tax Reconciliation Subsidiary Restructuring Amount EffectiveIncomeTaxReconciliationSubsidiaryRestructuringAmount	0	USD
CY2019Q2	hlx	Effective Income Tax Reconciliation Subsidiary Restructuring Percent EffectiveIncomeTaxReconciliationSubsidiaryRestructuringPercent	0
	hlx	Effective Income Tax Reconciliation Subsidiary Restructuring Amount EffectiveIncomeTaxReconciliationSubsidiaryRestructuringAmount	-8333000	USD
	hlx	Effective Income Tax Reconciliation Subsidiary Restructuring Percent EffectiveIncomeTaxReconciliationSubsidiaryRestructuringPercent	0.279
	hlx	Effective Income Tax Reconciliation Subsidiary Restructuring Amount EffectiveIncomeTaxReconciliationSubsidiaryRestructuringAmount	0	USD
	hlx	Effective Income Tax Reconciliation Subsidiary Restructuring Percent EffectiveIncomeTaxReconciliationSubsidiaryRestructuringPercent	0
CY2020Q2	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	228000	USD
CY2020Q2	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.044
CY2019Q2	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	403000	USD
CY2019Q2	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.020
	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-414000	USD
	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.014
	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	632000	USD
	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.030
CY2020Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-271000	USD
CY2020Q2	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.052
CY2019Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2876000	USD
CY2019Q2	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.146
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-21364000	USD
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.716
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3200000	USD
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.150
CY2020Q2	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-99938000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-64455000	USD
CY2020Q2	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	0	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-285000	USD
CY2020Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-99938000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-64740000	USD
CY2020Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	199147000	USD
CY2019Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	201728000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	380168000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	368551000	USD
CY2020Q2	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	400000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	700000	USD
CY2020Q2	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	14800000	USD
CY2019Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	19900000	USD
CY2020Q2	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	3500000	USD
	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	6400000	USD
CY2019Q2	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	2600000	USD
	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	5200000	USD
CY2020Q2	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	574200000	USD
CY2020Q2	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	262800000	USD
CY2020Q2	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	221500000	USD
CY2020Q2	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	89900000	USD
CY2020Q2	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	32100000	USD
CY2019Q4	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	42900000	USD
CY2020Q2	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	8800000	USD
	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	18000000.0	USD
CY2019Q2	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	8200000	USD
	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	15900000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	5450000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	16854000	USD
CY2020Q2	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	37000	USD
CY2019Q2	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	141000	USD
CY2020Q2	hlx	Accretion Of Redeemable Noncontrolling Interests AccretionOfRedeemableNoncontrollingInterests	69000	USD
CY2019Q2	hlx	Accretion Of Redeemable Noncontrolling Interests AccretionOfRedeemableNoncontrollingInterests	18000	USD
CY2020Q2	us-gaap	Undistributed Earnings UndistributedEarnings	5344000	USD
CY2020Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	148971000	shares
CY2019Q2	us-gaap	Undistributed Earnings UndistributedEarnings	16695000	USD
CY2019Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	147521000	shares
CY2020Q2	us-gaap	Undistributed Earnings UndistributedEarnings	5344000	USD
CY2020Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	148971000	shares
CY2019Q2	us-gaap	Undistributed Earnings UndistributedEarnings	16695000	USD
CY2019Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	147521000	shares
CY2020Q2	us-gaap	Amount Of Dilutive Securities Stock Options And Restrictive Stock Units AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits	0	USD
CY2020Q2	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	720000	shares
CY2019Q2	us-gaap	Amount Of Dilutive Securities Stock Options And Restrictive Stock Units AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits	0	USD
	us-gaap	Undistributed Earnings UndistributedEarnings	-8643000	USD
	us-gaap	Undistributed Earnings UndistributedEarnings	-8643000	USD
CY2019Q2	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	580000	shares
CY2020Q2	us-gaap	Net Income Loss Attributable To Parent Diluted NetIncomeLossAttributableToParentDiluted	5344000	USD
CY2020Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	149691000	shares
CY2019Q2	us-gaap	Net Income Loss Attributable To Parent Diluted NetIncomeLossAttributableToParentDiluted	16695000	USD
CY2019Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	148101000	shares
	us-gaap	Net Income Loss NetIncomeLoss	-6488000	USD
	us-gaap	Net Income Loss NetIncomeLoss	18172000	USD
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	0	USD
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	159000	USD
	hlx	Accretion Of Redeemable Noncontrolling Interests AccretionOfRedeemableNoncontrollingInterests	2155000	USD
	hlx	Accretion Of Redeemable Noncontrolling Interests AccretionOfRedeemableNoncontrollingInterests	18000	USD
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	148917000	shares
	us-gaap	Undistributed Earnings UndistributedEarnings	17995000	USD
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	147471000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	148917000	shares
	us-gaap	Undistributed Earnings UndistributedEarnings	17995000	USD
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	147471000	shares
	us-gaap	Amount Of Dilutive Securities Stock Options And Restrictive Stock Units AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits	0	USD
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
	us-gaap	Amount Of Dilutive Securities Stock Options And Restrictive Stock Units AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits	0	USD
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	460000	shares
	us-gaap	Net Income Loss Attributable To Parent Diluted NetIncomeLossAttributableToParentDiluted	-8643000	USD
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	148917000	shares
	us-gaap	Net Income Loss Attributable To Parent Diluted NetIncomeLossAttributableToParentDiluted	17995000	USD
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	147931000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	148917000	shares
	hlx	Weighted Average Number Of Diluted Shares Including Anti Dilutive Securities WeightedAverageNumberOfDilutedSharesIncludingAntiDilutiveSecurities	149897000	shares
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	segment
CY2020Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	199147000	USD
CY2019Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	201728000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	380168000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	368551000	USD
CY2020Q2	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2019Q2	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	6689000	USD
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2020Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	14194000	USD
CY2019Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	23072000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	-6833000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	23341000	USD
CY2020Q2	us-gaap	Asset Retirement Obligation AssetRetirementObligation	29562000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	-427000	USD
CY2020Q2	us-gaap	Assets Assets	2484669000	USD
CY2019Q4	us-gaap	Assets Assets	2596731000	USD
CY2019Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	28258000	USD
	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	1304000	USD
CY2020Q2	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	42100000	USD
	us-gaap	Interest Paid Net InterestPaidNet	8413000	USD
	us-gaap	Interest Paid Net InterestPaidNet	1478000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	4937000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	5478000	USD
CY2020Q2	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	1600000	USD
CY2019Q4	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	10200000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	0	USD
	hlx	Contract With Customer Receivable Credit Loss Initial Adoption Of Asu201613 ContractWithCustomerReceivableCreditLossInitialAdoptionOfASU201613	785000	USD
	us-gaap	Contract With Customer Receivable Credit Loss Expense Reversal ContractWithCustomerReceivableCreditLossExpenseReversal	2424000	USD
CY2020Q2	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	3209000	USD
CY2019Q4	us-gaap	Derivative Instruments In Hedges Assets At Fair Value DerivativeInstrumentsInHedgesAssetsAtFairValue	44000	USD
CY2019Q4	us-gaap	Derivative Instruments In Hedges Liabilities At Fair Value DerivativeInstrumentsInHedgesLiabilitiesAtFairValue	401000	USD
CY2019Q4	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Liability At Fair Value DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue	601000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	1000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	-278000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	-95000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax	-25000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax	-1975000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax	-452000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax	-3821000	USD
CY2020Q2	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	0	USD
CY2019Q2	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-2000	USD
	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-81000	USD
	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-42000	USD

Files In Submission

Name	View Source	Status
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0000866829-20-000025-index.html	Edgar Link	pending
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hlx-20200630_pre.xml	Edgar Link	unprocessable
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$HLX
HELIX ENERGY SOLUTIONS GROUP INC Stock $hlx

2020 Q2 Form 10-Q Financial Statement

#000086682920000025 Filed on July 24, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HLX HELIX ENERGY SOLUTIONS GROUP INC Stock $hlx

2020 Q2 Form 10-Q Financial Statement

#000086682920000025 Filed on July 24, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HLX
HELIX ENERGY SOLUTIONS GROUP INC Stock $hlx