$GPOR
GULFPORT ENERGY CORP Stock $gpor

$gpor Overview Financials Valuation SEC Filings Company Website

2020 Q2 Form 10-Q Financial Statement

#000162828020012051 Filed on August 07, 2020

Income Statement

Concept	2020 Q2	2019 Q2
Revenue	$186.3M	$512.5M
YoY Change	-63.65%	102.76%
Cost Of Revenue	$113.9M	$72.02M
YoY Change	58.11%	0.8%
Gross Profit	$72.44M	$440.4M
YoY Change	-83.55%	142.93%
Gross Profit Margin	38.88%	85.95%
Selling, General & Admin	$123.6M	$83.74M
YoY Change	47.63%	-1.94%
% of Gross Profit	170.68%	19.01%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$64.79M	$125.0M
YoY Change	-48.15%	2.49%
% of Gross Profit	89.44%	28.37%
Operating Expenses	$189.2M	$242.1M
YoY Change	-21.85%	1.31%
Operating Profit	-$555.8M	$218.5M
YoY Change	-354.4%	1321.04%
Interest Expense	$32.37M	$36.42M
YoY Change	-11.13%	8.05%
% of Operating Profit		16.67%
Other Income/Expense, Net	-$5.318M	-$162.8M
YoY Change	-96.73%	-266.96%
Pretax Income	-$561.1M	$55.63M
YoY Change	-1108.66%	-50.03%
Income Tax	$0.00	-$179.3M
% Of Pretax Income		-322.39%
Net Earnings	-$561.1M	$235.0M
YoY Change	-338.8%	111.07%
Net Earnings / Revenue	-301.16%	45.85%
Basic Earnings Per Share	-$3.51	$1.47
Diluted Earnings Per Share	-$3.51	$1.47
COMMON SHARES
Basic Shares Outstanding	159.9M shares	159.3M shares
Diluted Shares Outstanding	159.9M shares	159.5M shares

Balance Sheet

Concept	2020 Q2	2019 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$2.817M	$20.78M
YoY Change	-86.44%	-82.57%
Cash & Equivalents	$2.817M	$20.78M
Short-Term Investments
Other Short-Term Assets	$64.05M	$144.4M
YoY Change	-55.64%	359.85%
Inventory
Prepaid Expenses
Receivables	$65.65M	$131.7M
Other Receivables	$0.00	$0.00
Total Short-Term Assets	$151.9M	$343.5M
YoY Change	-55.78%	-0.33%
LONG-TERM ASSETS
Property, Plant & Equipment	$2.370B	$5.724B
YoY Change	-58.59%	4.95%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$13.05M	$119.3M
YoY Change	-89.06%	-45.48%
Other Assets	$37.00M	$12.28M
YoY Change	201.3%	-38.3%
Total Long-Term Assets	$2.428B	$6.122B
YoY Change	-60.33%	7.22%
TOTAL ASSETS
Total Short-Term Assets	$151.9M	$343.5M
Total Long-Term Assets	$2.428B	$6.122B
Total Assets	$2.580B	$6.465B
YoY Change	-60.09%	6.79%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$315.6M	$493.8M
YoY Change	-36.1%	-15.5%
Accrued Expenses	$3.356M	$38.82M
YoY Change	-91.35%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00
YoY Change
Long-Term Debt Due	$649.0K	$615.0K
YoY Change	5.53%	-3.76%
Total Short-Term Liabilities	$328.1M	$533.5M
YoY Change	-38.49%	-17.46%
LONG-TERM LIABILITIES
Long-Term Debt	$1.910B	$2.199B
YoY Change	-13.12%	3.96%
Other Long-Term Liabilities	$107.3M	$122.8M
YoY Change	-12.65%	16494.32%
Total Long-Term Liabilities	$1.910B	$2.199B
YoY Change	-13.12%	3.93%
TOTAL LIABILITIES
Total Short-Term Liabilities	$328.1M	$533.5M
Total Long-Term Liabilities	$1.910B	$2.199B
Total Liabilities	$2.349B	$2.858B
YoY Change	-17.81%	-0.04%
SHAREHOLDERS EQUITY
Retained Earnings	-$3.926B	-$548.2M
YoY Change	616.26%	-48.98%
Common Stock	$1.601M	$1.594M
YoY Change	0.44%	-8.02%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$231.3M	$3.607B
YoY Change
Total Liabilities & Shareholders Equity	$2.580B	$6.465B
YoY Change	-60.09%	6.79%

Cashflow Statement

Concept	2020 Q2	2019 Q2
OPERATING ACTIVITIES
Net Income	-$561.1M	$235.0M
YoY Change	-338.8%	111.07%
Depreciation, Depletion And Amortization	$64.79M	$125.0M
YoY Change	-48.15%	2.49%
Cash From Operating Activities	$116.4M	$160.0M
YoY Change	-27.26%	-13.37%
INVESTING ACTIVITIES
Capital Expenditures	-$161.1M	-$267.4M
YoY Change	-39.73%	-4.48%
Acquisitions
YoY Change
Other Investing Activities	$862.0K	$2.712M
YoY Change	-68.22%	-98.8%
Cash From Investing Activities	-$160.3M	-$264.7M
YoY Change	-39.44%	393.77%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	45.08M	107.4M
YoY Change	-58.04%	-182.33%
NET CHANGE
Cash From Operating Activities	116.4M	160.0M
Cash From Investing Activities	-160.3M	-264.7M
Cash From Financing Activities	45.08M	107.4M
Net Change In Cash	1.184M	2.781M
YoY Change	-57.43%	363.5%
FREE CASH FLOW
Cash From Operating Activities	$116.4M	$160.0M
Capital Expenditures	-$161.1M	-$267.4M
Free Cash Flow	$277.5M	$427.4M
YoY Change	-35.06%	-8.01%

Facts In Submission

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	dei	Entity Central Index Key EntityCentralIndexKey	0000874499
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
	dei	Document Type DocumentType	10-Q
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q2
CY2017Q1	gpor	Site Contingency Numberof Siteswith Violation SiteContingencyNumberofSiteswithViolation	1	violation
CY2019Q2	gpor	Site Contingency Numberof Siteswith Violation SiteContingencyNumberofSiteswithViolation	1	violation
	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	000-19514
	dei	Entity Registrant Name EntityRegistrantName	Gulfport Energy Corp
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	73-1521290
	dei	Entity Address Address Line1 EntityAddressAddressLine1	3001 Quail Springs Parkway
	dei	Entity Address City Or Town EntityAddressCityOrTown	Oklahoma City,
	dei	Entity Address State Or Province EntityAddressStateOrProvince	OK
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	73134
	dei	City Area Code CityAreaCode	405
	dei	Local Phone Number LocalPhoneNumber	252-4600
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Security12b Title Security12bTitle	Common stock, par value $0.01 per share
	dei	Trading Symbol TradingSymbol	GPOR
	dei	Security Exchange Name SecurityExchangeName	NASDAQ
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
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CY2019Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	55625000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-1071316000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	117867000	USD
CY2020Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	0	USD
CY2019Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-179331000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7290000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-179331000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	-561068000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	234956000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-1078606000	USD
	us-gaap	Net Income Loss NetIncomeLoss	297198000	USD
CY2020Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-3.51
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.47
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-6.75
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.85
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-3.51
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.47
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-6.75
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.84
CY2020Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	159934000	shares
CY2019Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	159325000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	159847000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	161065000	shares
CY2020Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	159934000	shares
CY2019Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	159507000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	159847000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	161590000	shares
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	-561068000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	234956000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-1078606000	USD
	us-gaap	Net Income Loss NetIncomeLoss	297198000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	6872000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	3610000	USD
	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-8158000	USD
	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	7411000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	6872000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	3610000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-8158000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	7411000	USD
CY2020Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-554196000	USD
CY2019Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	238566000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-1086764000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	304609000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	1314592000	USD
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	-517538000	USD
CY2020Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-15030000	USD
CY2020Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2104000	USD
CY2020Q1	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	79000	USD
CY2020Q1	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	0	USD
CY2020Q1	us-gaap	Stockholders Equity StockholdersEquity	784049000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	-561068000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	6872000	USD
CY2020Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	1515000	USD
CY2020Q2	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	28000	USD
CY2020Q2	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	0	USD
CY2020Q2	us-gaap	Stockholders Equity StockholdersEquity	231340000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	3327768000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	62242000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	3801000	USD
CY2019Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2785000	USD
CY2019Q1	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	28330000	USD
CY2019Q1	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	0	USD
CY2019Q1	us-gaap	Stockholders Equity StockholdersEquity	3368266000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	234956000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	3610000	USD
CY2019Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2846000	USD
CY2019Q2	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	2270000	USD
CY2019Q2	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	0	USD
CY2019Q2	us-gaap	Stockholders Equity StockholdersEquity	3607408000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-1078606000	USD
	us-gaap	Net Income Loss NetIncomeLoss	297198000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	142818000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	243384000	USD
	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	1086225000	USD
	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	0	USD
	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-10834000	USD
	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-121449000	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	49579000	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
	us-gaap	Unrealized Gain Loss On Derivatives And Commodity Contracts UnrealizedGainLossOnDerivativesAndCommodityContracts	125237000	USD
	us-gaap	Unrealized Gain Loss On Derivatives And Commodity Contracts UnrealizedGainLossOnDerivativesAndCommodityContracts	151095000	USD
	gpor	Cash Settlement On Derivative Instruments CashSettlementOnDerivativeInstruments	195232000	USD
	gpor	Cash Settlement On Derivative Instruments CashSettlementOnDerivativeInstruments	-1494000	USD
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	gpor	Deferred Income Tax Expense Benefit Including Discontinued Operations DeferredIncomeTaxExpenseBenefitIncludingDiscontinuedOperations	-179331000	USD
	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	9844000	USD
	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	11341000	USD
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	gpor	Increase Decreasein Accounts Receivable Oiland Natural Gas IncreaseDecreaseinAccountsReceivableOilandNaturalGas	-78525000	USD
	gpor	Increase Decreasein Accounts Receivable Joint Operationsand Other IncreaseDecreaseinAccountsReceivableJointOperationsandOther	-29159000	USD
	gpor	Increase Decreasein Accounts Receivable Joint Operationsand Other IncreaseDecreaseinAccountsReceivableJointOperationsandOther	24148000	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-30620000	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	3220000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	5703000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-720000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	247222000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	399769000	USD
	us-gaap	Payments To Acquire Oil And Gas Property PaymentsToAcquireOilAndGasProperty	274851000	USD
	us-gaap	Payments To Acquire Oil And Gas Property PaymentsToAcquireOilAndGasProperty	508315000	USD
	us-gaap	Proceeds From Sale Of Oil And Gas Property And Equipment ProceedsFromSaleOfOilAndGasPropertyAndEquipment	45185000	USD
	us-gaap	Proceeds From Sale Of Oil And Gas Property And Equipment ProceedsFromSaleOfOilAndGasPropertyAndEquipment	745000	USD
	us-gaap	Payments To Acquire Other Property Plant And Equipment PaymentsToAcquireOtherPropertyPlantAndEquipment	575000	USD
	us-gaap	Payments To Acquire Other Property Plant And Equipment PaymentsToAcquireOtherPropertyPlantAndEquipment	4298000	USD
	us-gaap	Proceeds From Sale Of Other Property Plant And Equipment ProceedsFromSaleOfOtherPropertyPlantAndEquipment	151000	USD
	us-gaap	Proceeds From Sale Of Other Property Plant And Equipment ProceedsFromSaleOfOtherPropertyPlantAndEquipment	130000	USD
	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	0	USD
	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	432000	USD
	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	0	USD
	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	1945000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-230090000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-510225000	USD
	us-gaap	Repayments Of Debt RepaymentsOfDebt	323322000	USD
	us-gaap	Repayments Of Debt RepaymentsOfDebt	345350000	USD
	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	326000000	USD
	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	455000000	USD
	us-gaap	Early Repayment Of Senior Debt EarlyRepaymentOfSeniorDebt	22827000	USD
	us-gaap	Early Repayment Of Senior Debt EarlyRepaymentOfSeniorDebt	0	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	30000000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-226000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-714000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-20375000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	78936000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-3243000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-31520000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	6060000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	52297000	USD
CY2020Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2817000	USD
CY2019Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	20777000	USD
	us-gaap	Interest Paid Net InterestPaidNet	60523000	USD
	us-gaap	Interest Paid Net InterestPaidNet	67472000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	0	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-1794000	USD
	gpor	Capitalized Stock Based Compensation CapitalizedStockBasedCompensation	1891000	USD
	gpor	Capitalized Stock Based Compensation CapitalizedStockBasedCompensation	2252000	USD
	gpor	Asset Retirement Obligation Liabilities Incurred Including Revisionof Estimate AssetRetirementObligationLiabilitiesIncurredIncludingRevisionofEstimate	1553000	USD
	gpor	Asset Retirement Obligation Liabilities Incurred Including Revisionof Estimate AssetRetirementObligationLiabilitiesIncurredIncludingRevisionofEstimate	6230000	USD
	gpor	Asset Retirement Obligation Removed Due To Divestiture AssetRetirementObligationRemovedDueToDivestiture	2033000	USD
	gpor	Asset Retirement Obligation Removed Due To Divestiture AssetRetirementObligationRemovedDueToDivestiture	0	USD
	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	710000	USD
	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	1771000	USD
	gpor	Noncashor Part Noncash Acquisition Contingent Consideration NoncashorPartNoncashAcquisitionContingentConsideration	23090000	USD
	gpor	Noncashor Part Noncash Acquisition Contingent Consideration NoncashorPartNoncashAcquisitionContingentConsideration	0	USD
	gpor	Foreign Currency Translation Gain Loss On Investment In Equity Method Investment ForeignCurrencyTranslationGainLossOnInvestmentInEquityMethodInvestment	-8158000	USD
	gpor	Foreign Currency Translation Gain Loss On Investment In Equity Method Investment ForeignCurrencyTranslationGainLossOnInvestmentInEquityMethodInvestment	7411000	USD
CY2020Q2	us-gaap	Oil And Gas Property Full Cost Method Gross OilAndGasPropertyFullCostMethodGross	10730992000	USD
CY2019Q4	us-gaap	Oil And Gas Property Full Cost Method Gross OilAndGasPropertyFullCostMethodGross	10595735000	USD
CY2020Q2	us-gaap	Oil And Gas Property Full Cost Method Depletion OilAndGasPropertyFullCostMethodDepletion	8415756000	USD
CY2019Q4	us-gaap	Oil And Gas Property Full Cost Method Depletion OilAndGasPropertyFullCostMethodDepletion	7191957000	USD
CY2020Q2	us-gaap	Oil And Gas Property Full Cost Method Net OilAndGasPropertyFullCostMethodNet	2315236000	USD
CY2019Q4	us-gaap	Oil And Gas Property Full Cost Method Net OilAndGasPropertyFullCostMethodNet	3403778000	USD
CY2020Q2	gpor	Property Plantand Equipment Other Gross Excluding Land PropertyPlantandEquipmentOtherGrossExcludingLand	91317000	USD
CY2019Q4	gpor	Property Plantand Equipment Other Gross Excluding Land PropertyPlantandEquipmentOtherGrossExcludingLand	91198000	USD
CY2020Q2	us-gaap	Land Land	5521000	USD
CY2019Q4	us-gaap	Land Land	5521000	USD
CY2020Q2	gpor	Property Plantand Equipment Other Accumulated Depreciation Depletion And Amortization PropertyPlantandEquipmentOtherAccumulatedDepreciationDepletionAndAmortization	41708000	USD
CY2019Q4	gpor	Property Plantand Equipment Other Accumulated Depreciation Depletion And Amortization PropertyPlantandEquipmentOtherAccumulatedDepreciationDepletionAndAmortization	36703000	USD
CY2020Q2	us-gaap	Property Plant And Equipment Other Net PropertyPlantAndEquipmentOtherNet	55130000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Other Net PropertyPlantAndEquipmentOtherNet	60016000	USD
CY2020Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	2370366000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	3463794000	USD
CY2020Q2	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	532900000	USD
	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	1100000000	USD
CY2019Q2	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	0	USD
	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	0	USD
CY2020Q2	gpor	Capitalized General And Administrative Costs CapitalizedGeneralAndAdministrativeCosts	8200000	USD
	gpor	Capitalized General And Administrative Costs CapitalizedGeneralAndAdministrativeCosts	13600000	USD
CY2019Q2	gpor	Capitalized General And Administrative Costs CapitalizedGeneralAndAdministrativeCosts	8800000	USD
	gpor	Capitalized General And Administrative Costs CapitalizedGeneralAndAdministrativeCosts	16500000	USD
	gpor	Depletionper Mc Fof Gas Equivalent DepletionperMCFofGasEquivalent	0.73	usd_per_mcf
	gpor	Depletionper Mc Fof Gas Equivalent DepletionperMCFofGasEquivalent	1.00	usd_per_mcf
CY2020Q2	us-gaap	Capitalized Costs Of Unproved Properties Excluded From Amortization Cumulative CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative	1564189000	USD
CY2019Q4	us-gaap	Capitalized Costs Of Unproved Properties Excluded From Amortization Cumulative CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative	1700000000	USD
CY2019Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	60355000	USD
CY2018Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	79952000	USD
	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	1553000	USD
	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	5153000	USD
	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	0	USD
	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	117000	USD
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	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	2426000	USD
	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	0	USD
	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	1077000	USD
CY2020Q2	us-gaap	Asset Retirement Obligation AssetRetirementObligation	61371000	USD
CY2019Q2	us-gaap	Asset Retirement Obligation AssetRetirementObligation	88491000	USD
CY2020Q1	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	50000000.0	USD
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CY2020Q1	gpor	Contingent Consideration Asset Fair Value ContingentConsiderationAssetFairValue	23100000	USD
	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	0	USD
CY2020Q2	us-gaap	Equity Method Investments EquityMethodInvestments	13052000	USD
CY2019Q4	us-gaap	Equity Method Investments EquityMethodInvestments	32044000	USD
CY2020Q2	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-45000	USD
CY2019Q2	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-125582000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-10834000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-121309000	USD
CY2020Q2	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	20802000	USD
CY2019Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	23751000	USD
CY2020Q2	us-gaap	Long Term Debt Current LongTermDebtCurrent	649000	USD
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	631000	USD
CY2020Q2	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	1910318000	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	1978020000	USD
CY2020Q2	gpor	Interest Cost Capitalized Undeveloped Properties InterestCostCapitalizedUndevelopedProperties	500000	USD
	gpor	Interest Cost Capitalized Undeveloped Properties InterestCostCapitalizedUndevelopedProperties	700000	USD
CY2019Q2	gpor	Interest Cost Capitalized Undeveloped Properties InterestCostCapitalizedUndevelopedProperties	1000000.0	USD
	gpor	Interest Cost Capitalized Undeveloped Properties InterestCostCapitalizedUndevelopedProperties	1800000	USD
CY2020Q2	us-gaap	Debt Instrument Repurchase Amount DebtInstrumentRepurchaseAmount	200000000	USD
CY2019Q1	us-gaap	Stock Repurchase Program Period In Force1 StockRepurchaseProgramPeriodInForce1	P24M
CY2020Q2	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	28000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	100000	USD
CY2019Q2	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	72000	shares
	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	87000	shares
CY2019Q2	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	500000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	600000	USD
CY2020Q2	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	2200000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	4300000	USD
CY2020Q2	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	1000000.0	USD
	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	1900000	USD
CY2019Q2	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	2800000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	5600000	USD
CY2019Q2	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	1100000	USD
	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	2300000	USD
	gpor	Sharebased Compensation Arrangementby Sharebased Payment Award Relative Total Shareholder Return Target Award Minimum SharebasedCompensationArrangementbySharebasedPaymentAwardRelativeTotalShareholderReturnTargetAwardMinimum	0
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CY2020Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-561068000	USD
CY2020Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	159933739	shares
CY2020Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-3.51
CY2019Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	234956000	USD
CY2019Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	159324909	shares
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.47
CY2020Q2	us-gaap	Amount Of Dilutive Securities Stock Options And Restrictive Stock Units AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits	0	USD
CY2020Q2	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
CY2019Q2	us-gaap	Amount Of Dilutive Securities Stock Options And Restrictive Stock Units AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits	0	USD
CY2019Q2	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	181917	shares
CY2020Q2	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-561068000	USD
CY2020Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	159933739	shares
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-3.51
CY2019Q2	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	234956000	USD
CY2019Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	159506826	shares
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.47
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-1078606000	USD
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	159846981	shares
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-6.75
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	297198000	USD
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	161064787	shares
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	us-gaap	Amount Of Dilutive Securities Stock Options And Restrictive Stock Units AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits	0	USD
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	us-gaap	Amount Of Dilutive Securities Stock Options And Restrictive Stock Units AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits	0	USD
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	525300	shares
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-1078606000	USD
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	159846981	shares
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-6.75
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	297198000	USD
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	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.84
CY2020Q2	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1281773	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1610572	shares
CY2019Q2	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2020Q2	gpor	Supply Commitment Remainderof Fiscal Year SupplyCommitmentRemainderofFiscalYear	311000	MMBTU
CY2020Q2	gpor	Supply Commitment Due In Year One SupplyCommitmentDueInYearOne	192000	MMBTU
CY2020Q2	gpor	Supply Commitment Due In Year Two SupplyCommitmentDueInYearTwo	70000	MMBTU
CY2020Q2	gpor	Supply Commitment Due In Year Three SupplyCommitmentDueInYearThree	17000	MMBTU
CY2020Q2	gpor	Supply Commitment Total SupplyCommitmentTotal	590000	MMBTU
CY2020Q2	us-gaap	Other Commitments Future Minimum Payments Remainder Of Fiscal Year OtherCommitmentsFutureMinimumPaymentsRemainderOfFiscalYear	3750000	USD
CY2020Q2	us-gaap	Other Commitment Due In Next Twelve Months OtherCommitmentDueInNextTwelveMonths	7500000	USD
CY2020Q2	us-gaap	Other Commitment OtherCommitment	11250000	USD
	us-gaap	Loss Contingency New Claims Filed Number LossContingencyNewClaimsFiledNumber	2	complaint
CY2020Q2	us-gaap	Loss Contingency Damages Sought Value LossContingencyDamagesSoughtValue	28000000.0	USD
CY2020Q2	gpor	Loss Contingency Damages Sought Percentage Of Unpaid Overtime Compensation LossContingencyDamagesSoughtPercentageOfUnpaidOvertimeCompensation	0.06
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CY2013Q4	gpor	Site Contingency Numberof Siteswith Violation SiteContingencyNumberofSiteswithViolation	1
CY2020Q2	us-gaap	Loss Contingency Accrual Carrying Value Current LossContingencyAccrualCarryingValueCurrent	1700000	USD
CY2018Q4	us-gaap	Environmental Remediation Expense EnvironmentalRemediationExpense	180000	USD
CY2020Q2	us-gaap	Derivative Nonmonetary Notional Amount Volume DerivativeNonmonetaryNotionalAmountVolume	6000	bbl
CY2020Q2	gpor	Cash Settlement On Derivative Instruments CashSettlementOnDerivativeInstruments	40500000	USD
CY2020Q2	gpor	Derivative Credit Risk Related Contingent Features Payment To Be Received Denominator DerivativeCreditRiskRelatedContingentFeaturesPaymentToBeReceivedDenominator	8.03
CY2020Q2	us-gaap	Derivative Assets Liabilities At Fair Value Net DerivativeAssetsLiabilitiesAtFairValueNet	3331000	USD
CY2019Q4	us-gaap	Derivative Assets Liabilities At Fair Value Net DerivativeAssetsLiabilitiesAtFairValueNet	73326000	USD
CY2020Q2	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	26971000	USD
CY2019Q2	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	171140000	USD
	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	125237000	USD
	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	151095000	USD
CY2020Q2	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	57486000	USD
CY2020Q2	us-gaap	Derivative Asset Not Offset Policy Election Deduction DerivativeAssetNotOffsetPolicyElectionDeduction	48761000	USD
CY2020Q2	us-gaap	Derivative Asset Fair Value Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election DerivativeAssetFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	8725000	USD
CY2020Q2	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	54155000	USD
CY2020Q2	us-gaap	Derivative Liability Not Offset Policy Election Deduction DerivativeLiabilityNotOffsetPolicyElectionDeduction	48761000	USD
CY2020Q2	us-gaap	Derivative Liability Fair Value Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election DerivativeLiabilityFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	5394000	USD
CY2019Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	126764000	USD
CY2019Q4	us-gaap	Derivative Asset Not Offset Policy Election Deduction DerivativeAssetNotOffsetPolicyElectionDeduction	53438000	USD
CY2019Q4	us-gaap	Derivative Asset Fair Value Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election DerivativeAssetFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	73326000	USD
CY2019Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	53438000	USD
CY2019Q4	us-gaap	Derivative Liability Not Offset Policy Election Deduction DerivativeLiabilityNotOffsetPolicyElectionDeduction	53438000	USD
CY2019Q4	us-gaap	Derivative Liability Fair Value Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election DerivativeLiabilityFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	0	USD
	gpor	Contingent Consideration Asset Fair Value ContingentConsiderationAssetFairValue	19800000	USD
CY2020Q2	gpor	Contingent Consideration Change In Amount Asset ContingentConsiderationChangeInAmountAsset	-3200000	USD
	gpor	Contingent Consideration Change In Amount Asset ContingentConsiderationChangeInAmountAsset	-3000000.0	USD
	gpor	Contingent Consideration Asset Settlements ContingentConsiderationAssetSettlements	300000	USD
	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	1600000	USD
CY2020Q2	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	65600000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	121200000	USD
	us-gaap	Revenue Performance Obligation Description Of Timing RevenuePerformanceObligationDescriptionOfTiming	However, settlement statements for certain sales may be received for 30 to 90 days after the date production is delivered, and as a result, the Company is required to estimate the amount of production that was delivered to the purchaser and the price that will be received for the sale of the product
CY2020Q2	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	3321000	USD
CY2020Q2	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	129000	USD
CY2020Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	115000	USD
CY2020Q2	us-gaap	Operating Lease Liability OperatingLeaseLiability	3640000	USD
CY2020Q2	us-gaap	Operating Lease Cost OperatingLeaseCost	2196000	USD
CY2020Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	90000	USD
CY2020Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	30000	USD
CY2020Q2	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	3685000	USD
CY2020Q2	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	45000	USD
CY2019Q2	us-gaap	Operating Lease Cost OperatingLeaseCost	7748000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	6278000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	16284000	USD
CY2020Q2	gpor	Operating Lease Cost Related Party OperatingLeaseCostRelatedParty	0	USD
CY2019Q2	gpor	Operating Lease Cost Related Party OperatingLeaseCostRelatedParty	5610000	USD
	gpor	Operating Lease Cost Related Party OperatingLeaseCostRelatedParty	0	USD
	gpor	Operating Lease Cost Related Party OperatingLeaseCostRelatedParty	11220000	USD
CY2020Q2	us-gaap	Variable Lease Cost VariableLeaseCost	235000	USD
CY2019Q2	us-gaap	Variable Lease Cost VariableLeaseCost	531000	USD
	us-gaap	Variable Lease Cost VariableLeaseCost	460000	USD
	us-gaap	Variable Lease Cost VariableLeaseCost	960000	USD
CY2020Q2	gpor	Variable Lease Cost Related Party VariableLeaseCostRelatedParty	0	USD
CY2019Q2	gpor	Variable Lease Cost Related Party VariableLeaseCostRelatedParty	28158000	USD
	gpor	Variable Lease Cost Related Party VariableLeaseCostRelatedParty	0	USD
	gpor	Variable Lease Cost Related Party VariableLeaseCostRelatedParty	59611000	USD
CY2020Q2	us-gaap	Short Term Lease Cost ShortTermLeaseCost	2629000	USD
CY2019Q2	us-gaap	Short Term Lease Cost ShortTermLeaseCost	183000	USD
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	5439000	USD
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	183000	USD
CY2020Q2	us-gaap	Lease Cost LeaseCost	5060000	USD
CY2019Q2	us-gaap	Lease Cost LeaseCost	42230000	USD
	us-gaap	Lease Cost LeaseCost	12177000	USD
	us-gaap	Lease Cost LeaseCost	88258000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	72000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	120000	USD
	us-gaap	Operating Lease Payments Use OperatingLeasePaymentsUse	7727000	USD
	us-gaap	Operating Lease Payments Use OperatingLeasePaymentsUse	12288000	USD
	gpor	Operating Lease Payments Use Related Party OperatingLeasePaymentsUseRelatedParty	6800000	USD
	gpor	Testing Period Section382a TestingPeriodSection382a	P3Y
CY2020Q2	gpor	Tax Benefits Preservation Plan Maximum Percentage Of Companys Securities Allowed To Be Owned By Third Party TaxBenefitsPreservationPlanMaximumPercentageOfCompanysSecuritiesAllowedToBeOwnedByThirdParty	0.049
	gpor	Operating Lease Payments Use Related Party OperatingLeasePaymentsUseRelatedParty	43925000	USD
CY2020Q2	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P0Y9M29D
CY2020Q2	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0247
CY2020Q1	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	7300000	USD
CY2020Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	2817000	USD
CY2020Q2	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	65645000	USD
CY2020Q2	us-gaap	Oil And Gas Joint Interest Billing Receivables Current OilAndGasJointInterestBillingReceivablesCurrent	19389000	USD
CY2020Q2	us-gaap	Due From Affiliate Current DueFromAffiliateCurrent	0	USD
CY2020Q2	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	10862000	USD
CY2020Q2	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	53188000	USD
CY2020Q2	us-gaap	Assets Current AssetsCurrent	151901000	USD
CY2020Q2	us-gaap	Oil And Gas Property Full Cost Method Gross OilAndGasPropertyFullCostMethodGross	10730992000	USD
CY2020Q2	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	1910318000	USD
CY2020Q2	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	96838000	USD
CY2020Q2	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	8457464000	USD
CY2020Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	2370366000	USD
CY2020Q2	us-gaap	Equity Method Investments EquityMethodInvestments	13052000	USD
CY2020Q2	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	3640000	USD
CY2020Q2	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	37000000	USD
CY2020Q2	gpor	Total Other Assets TotalOtherAssets	57990000	USD
CY2020Q2	us-gaap	Assets Assets	2580257000	USD
CY2020Q2	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	315575000	USD
CY2020Q2	us-gaap	Due To Affiliate Current DueToAffiliateCurrent	0	USD
CY2020Q2	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	8540000	USD
CY2020Q2	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	3356000	USD
CY2020Q2	us-gaap	Long Term Debt Current LongTermDebtCurrent	649000	USD
CY2020Q2	us-gaap	Liabilities Current LiabilitiesCurrent	328120000	USD
CY2020Q2	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	45615000	USD
CY2020Q2	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	61371000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	7228660000	USD
CY2020Q2	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	3209000	USD
CY2020Q2	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	284000	USD
CY2020Q2	us-gaap	Liabilities Liabilities	2348917000	USD
CY2020Q2	us-gaap	Common Stock Value CommonStockValue	1601000	USD
CY2020Q2	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	4211062000	USD
CY2020Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-54991000	USD
CY2020Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-3926332000	USD
CY2020Q2	us-gaap	Stockholders Equity StockholdersEquity	231340000	USD
CY2020Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2580257000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	6060000	USD
CY2019Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	121210000	USD
CY2019Q4	us-gaap	Oil And Gas Joint Interest Billing Receivables Current OilAndGasJointInterestBillingReceivablesCurrent	47975000	USD
CY2019Q4	us-gaap	Due From Affiliate Current DueFromAffiliateCurrent	0	USD
CY2019Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	4431000	USD
CY2019Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	126201000	USD
CY2019Q4	us-gaap	Assets Current AssetsCurrent	305877000	USD
CY2019Q4	us-gaap	Oil And Gas Property Full Cost Method Gross OilAndGasPropertyFullCostMethodGross	10595735000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	96719000	USD
CY2019Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	53135000	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	15540000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	3463794000	USD
CY2019Q4	us-gaap	Equity Method Investments EquityMethodInvestments	32044000	USD
CY2019Q4	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	563000	USD
CY2019Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	7563000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	14168000	USD
CY2019Q4	gpor	Operating Lease Rightof Use Asset Related Parties OperatingLeaseRightofUseAssetRelatedParties	43270000	USD
CY2019Q4	gpor	Total Other Assets TotalOtherAssets	113148000	USD
CY2019Q4	us-gaap	Assets Assets	3882819000	USD
CY2019Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	415218000	USD
CY2019Q4	us-gaap	Due To Affiliate Current DueToAffiliateCurrent	0	USD
CY2019Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	303000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	13826000	USD
CY2019Q4	gpor	Operating Lease Liability Current Related Parties OperatingLeaseLiabilityCurrentRelatedParties	21220000	USD
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	631000	USD
CY2019Q4	us-gaap	Liabilities Current LiabilitiesCurrent	451198000	USD
CY2019Q4	us-gaap	Liabilities Liabilities	2568227000	USD
CY2019Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	60355000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	3127000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	342000	USD
CY2019Q4	gpor	Operating Lease Liability Noncurrent Related Parties OperatingLeaseLiabilityNoncurrentRelatedParties	22050000	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	1978020000	USD
CY2019Q4	us-gaap	Common Stock Value CommonStockValue	1597000	USD
CY2019Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	4207554000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-46833000	USD
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-2847726000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	1314592000	USD
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	3882819000	USD
CY2020Q2	us-gaap	Revenues Revenues	132410000	USD
CY2020Q2	us-gaap	Operating Lease Expense OperatingLeaseExpense	15686000	USD
CY2020Q2	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	3605000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	304609000	USD
CY2020Q2	us-gaap	Cost Of Revenue CostOfRevenue	59974000	USD
CY2020Q2	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	64790000	USD
CY2020Q2	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	532880000	USD
CY2020Q2	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	10470000	USD
CY2020Q2	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	755000	USD
CY2020Q2	us-gaap	Costs And Expenses CostsAndExpenses	688160000	USD
CY2020Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-555750000	USD
CY2020Q2	us-gaap	Interest Expense InterestExpense	32366000	USD
CY2020Q2	us-gaap	Investment Income Interest InvestmentIncomeInterest	78000	USD
CY2020Q2	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	34257000	USD
CY2020Q2	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-45000	USD
CY2020Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-7242000	USD
CY2020Q2	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-5318000	USD
CY2020Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-561068000	USD
CY2020Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	0	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	-561068000	USD
CY2019Q2	us-gaap	Revenues Revenues	458994000	USD
CY2019Q2	us-gaap	Operating Lease Expense OperatingLeaseExpense	22388000	USD
CY2019Q2	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	8098000	USD
CY2019Q2	us-gaap	Cost Of Revenue CostOfRevenue	72015000	USD
CY2019Q2	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	124951000	USD
CY2019Q2	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	11727000	USD
CY2019Q2	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	1359000	USD
CY2019Q2	us-gaap	Costs And Expenses CostsAndExpenses	240538000	USD
CY2019Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	218456000	USD
CY2019Q2	us-gaap	Interest Expense InterestExpense	36418000	USD
CY2019Q2	us-gaap	Investment Income Interest InvestmentIncomeInterest	159000	USD
CY2019Q2	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-125582000	USD
CY2019Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-990000	USD
CY2019Q2	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-162831000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	55625000	USD
CY2019Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-179331000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	234956000	USD
	us-gaap	Revenues Revenues	379287000	USD
	us-gaap	Operating Lease Expense OperatingLeaseExpense	31672000	USD
	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	8404000	USD
	us-gaap	Cost Of Revenue CostOfRevenue	117870000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	142818000	USD
	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	1086225000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	26639000	USD
	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	1496000	USD
	us-gaap	Costs And Expenses CostsAndExpenses	1415124000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	-1035837000	USD
	us-gaap	Interest Expense InterestExpense	65356000	USD
	us-gaap	Investment Income Interest InvestmentIncomeInterest	230000	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	49579000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-10834000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-9098000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-35479000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-1071316000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7290000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-1078606000	USD
	us-gaap	Revenues Revenues	779572000	USD
	us-gaap	Operating Lease Expense OperatingLeaseExpense	42195000	USD
	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	16019000	USD
	us-gaap	Cost Of Revenue CostOfRevenue	142297000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	243384000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	21784000	USD
	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	2426000	USD
	us-gaap	Costs And Expenses CostsAndExpenses	468105000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	311467000	USD
	us-gaap	Interest Expense InterestExpense	72039000	USD
	us-gaap	Investment Income Interest InvestmentIncomeInterest	311000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-121309000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-563000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-193600000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	117867000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-179331000	USD
	us-gaap	Net Income Loss NetIncomeLoss	297198000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	-561068000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	6872000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	6872000	USD
CY2020Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-554196000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	234956000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	3610000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	3610000	USD
CY2019Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	238566000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-1078606000	USD
	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-8158000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-8158000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-1086764000	USD
	us-gaap	Net Income Loss NetIncomeLoss	297198000	USD
	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	7411000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	7411000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-3243000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	247222000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-230090000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-20375000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	6060000	USD
CY2020Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2817000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	399769000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-510225000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	78936000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-31520000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	52297000	USD
CY2019Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	20777000	USD

Files In Submission

Name	View Source	Status
0001628280-20-012051-index-headers.html	Edgar Link	pending
0001628280-20-012051-index.html	Edgar Link	pending
0001628280-20-012051.txt	Edgar Link	pending
0001628280-20-012051-xbrl.zip	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
gpor-06302020xex103.htm	Edgar Link	pending
gpor-06302020xex311.htm	Edgar Link	pending
gpor-06302020xex312.htm	Edgar Link	pending
gpor-06302020xex321.htm	Edgar Link	pending
gpor-06302020xex322.htm	Edgar Link	pending
gpor-20200630.htm	Edgar Link	pending
gpor-20200630.xsd	Edgar Link	pending
gpor-20200630_cal.xml	Edgar Link	unprocessable
gpor-20200630_def.xml	Edgar Link	unprocessable
gpor-20200630_htm.xml	Edgar Link	completed
gpor-20200630_lab.xml	Edgar Link	unprocessable
gpor-20200630_pre.xml	Edgar Link	unprocessable
MetaLinks.json	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$GPOR
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2020 Q2 Form 10-Q Financial Statement

#000162828020012051 Filed on August 07, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$GPOR GULFPORT ENERGY CORP Stock $gpor

2020 Q2 Form 10-Q Financial Statement

#000162828020012051 Filed on August 07, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$GPOR
GULFPORT ENERGY CORP Stock $gpor