Ultra Petroleum 10-Q 4 Jun 20 2020 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2020	May 31, 2020
Cover [Abstract]
Entity Registrant Name	ULTRA PETROLEUM CORP.
Entity Central Index Key	0001022646
Document Type	10-Q
Document Period End Date	Mar. 31, 2020
Amendment Flag	false
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Shell Company	false
Entity File Number	001-33614
Entity Incorporation, State or Country Code	B0
Entity Address, Address Line One	116 Inverness Drive East
Entity Address, Address Line Two	Suite 400
Entity Address, City or Town	Englewood
Entity Address, State or Province	CO
Entity Address, Postal Zip Code	80112
City Area Code	303
Local Phone Number	708-9740
Entity Common Stock, Shares Outstanding		199,665,509
Document Transition Report	false
Document Quarterly Report	true

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 6,571	$ 1,664
Restricted cash	1,926	1,777
Oil and gas revenue receivable and other receivables, net of allowances $11,967	42,453	78,321
Derivative assets	44,261	32,100
Income tax receivable		881
Other current assets	7,911	10,746
Total current assets	103,122	125,489
Oil and gas properties, net, using the full cost method of accounting:
Proven, net of accumulated depletion, depreciation, amortization and impairments	1,266,743	1,552,419
Property, plant and equipment, net	8,435	9,779
Long-term right-of-use assets	116,579	119,496
Other assets	5,779	8,093
Total assets	1,500,658	1,815,276
Current liabilities:
Accounts payable	9,314	13,570
Accrued liabilities	41,885	44,480
Production taxes payable	72,088	53,428
Current portion of long-term debt
Credit facility		64,700
Long-term debt	1,928,528	1,928,048
Add: Premium on exchange transactions	193,237	203,883
Less: Unamortized deferred financing costs and discount	(43,730)	(46,421)
Total current portion of long-term debt, net	2,078,035	2,150,210
Interest payable	23,390	29,903
Lease liabilities	12,166	11,938
Derivative liabilities	4,866	20,692
Total current liabilities	2,241,744	2,324,221
Long-term lease liabilities	104,447	107,587
Asset retirement obligations	197,482	193,995
Other long-term obligations	18,181	34,287
Total liabilities	2,561,854	2,660,090
Commitments and contingencies (Note 11)
Shareholders' equity:
Common stock - As of March 31, 2020 and December 31, 2019, no par value; authorized - unlimited; issued and outstanding - 199,310,216 and 197,888,473, respectively	2,141,751	2,140,520
Treasury stock	(49)	(49)
Retained loss	(3,202,898)	(2,985,285)
Total shareholders' deficit	(1,061,196)	(844,814)
Total liabilities and shareholders' equity	$ 1,500,658	$ 1,815,276

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Statement Of Financial Position [Abstract]
Oil and gas revenue receivable and other receivables, net of allowances	$ 11,967
Common stock, No par value
Common stock, Shares authorized	Unlimited	Unlimited
Common stock, Shares issued	199,310,216	197,888,473
Common stock, Shares outstanding	199,310,216	197,888,473

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenues:
Total operating revenues	$ 130,076	$ 271,461
Expenses:
Lease operating expenses	19,411	17,225
Facility lease expense	5,463	6,645
Production taxes	13,922	30,175
Gathering fees	16,682	19,817
Transportation charges	3,894	64
Depletion, depreciation, and amortization	47,284	51,653
Ceiling test write-down	242,603
General and administrative expenses	8,379	7,051
Prepetition restructuring expenses	2,644
Other operating expenses, net	3,438	684
Total operating expenses	363,720	133,314
Operating income (loss)	(233,644)	138,147
Other income (expense), net:
Interest expense	(30,398)	(33,327)
Gain (loss) on commodity derivatives	44,294	(64,339)
Other income (expense), net	2,094	166
Total other income (expense), net	15,990	(97,500)
Income (loss) before income tax (benefit) provision	(217,654)	40,647
Income tax (benefit) provision	(49)	(27)
Net income (loss)	$ (217,605)	$ 40,674
Net earnings (loss) per common share
Basic	$ (1.10)	$ 0.21
Diluted	$ (1.10)	$ 0.21
Weighted-average common shares outstanding
Basic	198,333	197,383
Diluted	198,333	197,801
Natural Gas Sales
Revenues:
Total operating revenues	$ 114,281	$ 245,989
Oil Sales
Revenues:
Total operating revenues	15,574	23,465
Other Revenues
Revenues:
Total operating revenues	$ 221	$ 2,007

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($)	Total	Common Stock	Retained (Loss) Earnings	Treasury Stock
Beginning Balances at Dec. 31, 2018	$ (1,048,622,000)	$ 2,137,443,000	$ (3,186,016,000)	$ (49,000)
Beginning Balances, Shares at Dec. 31, 2018		197,383
Fair value of employee stock plan grants	1,127,000	$ 1,127,000
Initial adoption | ASC 842	92,818,000		92,818,000
Net income (loss)	40,674,000		40,674,000
Ending Balances at Mar. 31, 2019	(914,003,000)	$ 2,138,570,000	(3,052,524,000)	(49,000)
Ending Balances, Shares at Mar. 31, 2019		197,383
Beginning Balances at Dec. 31, 2019	(844,814,000)	$ 2,140,520,000	(2,985,285,000)	(49,000)
Beginning Balances, Shares at Dec. 31, 2019		197,888
Net share settlements	(8,000)	$ 1,422	(8,000)
Fair value of employee stock plan grants	1,231,000	1,231,000
Net income (loss)	(217,605,000)		(217,605,000)
Ending Balances at Mar. 31, 2020	$ (1,061,196,000)	$ 2,141,751,000	$ (3,202,898,000)	$ (49,000)
Ending Balances, Shares at Mar. 31, 2020		199,310

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Operating activities - cash provided by:
Net income (loss) for the period	$ (217,605)	$ 40,674
Adjustments to reconcile net income (loss) to cash provided by operating activities:
Depletion, depreciation, and amortization	47,284	51,653
Ceiling test write-down	242,603
Unrealized loss (gain) on commodity derivatives	(27,945)	(14,292)
Stock compensation	1,180	841
Payable-in-kind (“PIK”) interest payable	2,917	3,183
Amortization of premium on debt exchange	(10,647)	(9,716)
Amortization of deferred financing costs	3,459	3,123
Inventory write-down	3,336
Other	(127)	582
Net changes in operating assets and liabilities:
Accounts receivable	35,869	50,243
Other current assets	(564)	(307)
Other non-current assets	30	30
Accounts payable	(3,637)	(359)
Accrued liabilities	(985)	4,425
Production taxes payable	18,660	25,743
Interest payable	(6,513)	99
Other long-term obligations	(14,590)	(11,663)
Income taxes payable/receivable	881	6,431
Net cash provided by operating activities	73,606	150,690
Investing Activities - cash used in:
Oil and gas property expenditures	(220)	(92,352)
Change in capital cost accrual and accounts payable	(2,229)	1,702
Inventory		419
Proceeds from sale of capital assets	1,469
Purchase of capital assets	(424)	(211)
Net cash used in investing activities	(1,404)	(90,442)
Financing activities - cash used in:
Deferred financing costs		(488)
Repurchased shares from net share settlements	(8)
Net cash used in financing activities	(67,146)	(66,488)
Increase (decrease) in cash during the period	5,056	(6,240)
Cash, cash equivalents, and restricted cash, beginning of period	3,441	19,305	$ 19,305
Cash, cash equivalents and restricted cash, end of period	8,497	13,065	$ 3,441
Credit Agreement
Financing activities - cash used in:
Borrowings under Credit Agreement	88,880	232,000
Payments under Credit Agreement / Term Loan	(153,580)	$ (298,000)
Term Loan
Financing activities - cash used in:
Payments under Credit Agreement / Term Loan	$ (2,438)

Description of the Business

Description of the Business	3 Months Ended
	Mar. 31, 2020
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Description of the Business	DESCRIPTION OF THE BUSINESS: Ultra Petroleum Corp. and its wholly-owned subsidiaries (collectively the “Company,” “Ultra,” “our,” “we,” or “us”) is an independent oil and gas company engaged in the operation and production, development and exploration, and acquisition of oil and natural gas properties. Ultra Petroleum Corp. is incorporated under the laws of Yukon, Canada. The Company’s principal business activities are operating and developing its long-life natural gas reserves in the Pinedale and Jonah fields of the Green River Basin of southwest Wyoming.

Voluntary Reorganization Under

Voluntary Reorganization Under Chapter 11	3 Months Ended
	Mar. 31, 2020
Discontinued Operations And Disposal Groups [Abstract]
Voluntary Reorganization under Chapter 11	VOLUNTARY REORGANIZATION UNDER CHAPTER 11: On May 14, 2020 (the “Petition Date”), Ultra Petroleum Corp. and all of its direct and indirect subsidiaries, including UP Energy Corporation (“UPE”), Ultra Resources, Inc. (“Ultra Resources”), Keystone Gas Gathering, LLC, Ultra Wyoming, LLC, Ultra Wyoming LGS, LLC, UPL Pinedale, LLC, and UPL Three Rivers Holdings, LLC (collectively, the “Filing Subsidiaries” and, together with the Company, the “Debtors”), filed voluntary petitions (the “Bankruptcy Petitions”) for reorganization under chapter 11 of the United States Bankruptcy Code (“Chapter 11”) in the United States Bankruptcy Court for the Southern District of Texas, Houston Division (the “Court”). The Court entered an order to jointly administer the Chapter 11 cases under the caption In re Ultra Petroleum Corp., et al., Case No. 20-32631 (collectively, the “Chapter 11 Cases”). The Debtors will continue to operate their businesses as “debtors-in-possession” under the jurisdiction of the Court and in accordance with the applicable provisions of the United States Bankruptcy Code and orders of the Court. For the duration of the Chapter 11 Cases, the Company’s operations and its ability to develop and execute its business plan are subject to risks and uncertainties associated with the Chapter 11 Cases. As a result of these risks and uncertainties, the Company’s assets, liabilities, officers and/or directors could be significantly different following the outcome of the Chapter 11 Cases, and the description of its operations, properties and capital plans included in these financial statements may not accurately reflect its operations, properties and capital plans following the Chapter 11 Cases. The commencement of a voluntary proceeding in bankruptcy constitutes an immediate event of default that accelerated the Company’s obligations under the following debt instruments: • The Credit Agreement, dated as of April 12, 2017, as amended (the “Credit Agreement”), by and between Ultra Resources, as borrower, the Company and UPE as parent guarantors, Bank of Montreal, as administrative agent, and the lenders party thereto (the “Consenting RBL Lenders”); • the Term Loan Agreement, dated as of April 12, 2017, as amended (the “Term Loan Agreement”), by and between Ultra Resources, as borrower, the Company and UPE as parent guarantors, Wilmington Trust, National Association (“WTNA”), as administrative and collateral agent, and the lenders party thereto (the “Consenting Term Lenders” and, together with the Consenting RBL Lenders, the “Consenting Lenders”); • the Company’s 9.00% Cash / 2.00% PIK Senior Secured Second Lien Notes due July 2024 (the “Second Lien Notes”), issued pursuant to the indenture, dated December 21, 2018, by and between Ultra Resources, as issuer, the Company and its other subsidiaries, as guarantors, and U.S. Bank, as trustee; • the Company’s 6.875% Senior Notes due April 2022 (the “2022 Notes”) • the Company’s 7.125% Senior Notes due April 2025 (the “2025 Notes” and together with the 2022 Notes, the “Unsecured Notes”) Accordingly, the Company has classified all of its outstanding debt as a current liability on its condensed consolidated balance sheet as of March 31, 2020. On the Petition Date, the Debtors entered into a Restructuring Support Agreement (the “RSA”) with the holders of (i) 100% of the aggregate principal amount of loans outstanding under the Credit Agreement; (ii) approximately 85% of the aggregate principal amount of loans outstanding under the Term Loan Agreement; and (iii) 67% of the Second Lien Notes issued pursuant to the Second Lien Indenture, by and between Ultra Resources, as issuer, and U.S. Bank National Association, a national banking association (“U.S. Bank”), as trustee and collateral agent, (the “Consenting Noteholders” and, together with the Consenting Lenders, the “Restructuring Support Parties”). Pursuant to the RSA, the Restructuring Support Parties agreed (subject to the terms and conditions of the RSA) to vote to accept the Debtors’ prepackaged joint Chapter 11 Plan of Reorganization (as proposed, the “Plan”) described below. Also on the Petition Date, consistent with the RSA, the Debtors solicited acceptances of and filed with the Court the proposed Plan which, subject to Court approval and the requisite support of the Debtors’ creditors: • equitizes or eliminates all of the Debtors’ prepetition indebtedness; • provides for a $25 million DIP Facility (as defined below) to the Company by certain Consenting Term Lenders; • provides for a new capital investment by the Consenting Term Lenders of up to approximately $85 million under an equity rights offering, with proceeds to be utilized by the Company to repay the value of the Credit Agreement including the letter of credit obligation associated with Rockies Express Pipeline (“REX”), net of impairment; the outstanding borrowings and balance of the DIP Facility (defined below); and, to provide the option for up to $15 million of proceeds in the event of a use of such funds; • contemplates a term loan of up to $5 million being issued upon exit with no prepayment penalties; • contemplates an exit revolving credit facility with a $60 million commitment amount and an initial $100 million borrowing base; • contemplates the rejection of the obligations under the REX firm transportation agreement through December 2026 and the rejection of the lease contract with the remaining term through December 2027 for the liquids gathering system owned by Pinedale Corridor, LP; • pays all ongoing trade obligations in the ordinary course; and • contains customary releases and exculpations. During the quarter ended March 31, 2020, the Company recognized $2.6 million consisting of professional, advisory, consulting, and legal fees related to the Chapter 11 Cases. These expenses are reported as Pre-petition restructuring expenses on the condensed consolidated statement of operations. DIP Credit Agreement. In connection with the RSA and the Chapter 11 Cases, Ultra Resources entered into a senior secured super priority debtor-in-possession credit agreement (the “DIP Credit Agreement”), dated as of May 19, 2020, among Ultra Resources, as borrower, UPE and the other Filing Subsidiaries, as guarantors, WTNA, as administrative agent and collateral agent, and the lenders party thereto. The DIP Credit Agreement provides for a multi-draw term loan credit facility in an aggregate principal amount of $25 million (the “DIP Facility”). Ultra intends to use proceeds of the DIP Facility, among other things: (1) to pay interest, fees, costs and expenses related to the loans thereunder, (2) to pay the fees, costs and expenses of the estate professionals retained in the Chapter 11 Cases and approved by the Court, (3) to pay certain fees, costs, disbursements and expenses of the Consenting Term Lenders, (4) to make all permitted payments of costs of administration of the Chapter 11 Cases, (5) to pay such prepetition expenses as are consented to in writing by the Required Lenders (as defined in the DIP Credit Agreement) and approved by the Court, (6) to satisfy any adequate protection obligations owing under the DIP Orders (as defined in the RSA); and (7) for general corporate and working capital purposes of the Debtors during the Chapter 11 Cases The DIP Facility is subject to certain affirmative and negative covenants, including, among other covenants the Company believes to be customary in debtor-in-possession financings, reporting by the Filing Subsidiaries in the form of a rolling 13-week budget and a weekly report with a reasonably detailed written explanation of all material variances from the budget. Ability to Continue as a Going Concern. The significant risks and uncertainties related to the Company’s liquidity and the Chapter 11 Cases described above raise substantial doubt about the Company’s ability to continue as a going concern. As such, the accompanying condensed consolidated financial statements (unaudited) are prepared in accordance with generally accepted accounting principles applicable to a going concern, which contemplates the realization of assets and the satisfaction of liabilities in the normal course of business. If the Company cannot continue as a going concern, adjustments to the carrying values and classification of its assets and liabilities and the reported amounts of income and expenses could be required and could be material. As discussed above, the filing of the Chapter 11 Cases constitutes an event of default under the Company’s outstanding debt agreements, resulting in the automatic and immediate acceleration of all of the Company’s outstanding debt. The Company projects that it will not have sufficient cash on hand or available liquidity to repay such debt. These conditions and events raise substantial doubt about the Company’s ability to continue as a going concern. As part of the Chapter 11 Cases, the Company submitted the Plan to the Bankruptcy Court. The Company’s operations and its ability to develop and execute its business plan are subject to a high degree of risk and uncertainty associated with the Chapter 11 Cases. The outcome of the Chapter 11 Cases is subject to a high degree of uncertainty and is dependent upon factors that are outside of the Company’s control, including actions of the Bankruptcy Court and the Company’s creditors. There can be no assurance that the Company will confirm and consummate the Plan as contemplated by the RSA or complete another plan of reorganization with respect to the Chapter 11 Cases. As a result, the Company has concluded that management’s plans do not alleviate substantial doubt about the Company’s ability to continue as a going concern absent a successful restructuring. Furthermore, as noted in the Annual Report on Form 10-K, the Company’s independent registered public accounting firm included an explanatory paragraph in its opinion of the audited consolidated financial statement regarding substantial doubt about the Company’s ability to continue as a going concern. As a result, the Company was in default under each of the Credit Agreement and Term Loan Agreement on April 14, 2020 when it delivered its financial statements to the lenders under the Credit Agreement and the Term Loan Agreement, respectively. Accordingly, the Company has classified all of its outstanding debt as a current liability on its condensed consolidated balance sheet as of March 31, 2020 and December 31, 2019.

Significant Accounting Policies

Significant Accounting Policies	3 Months Ended
	Mar. 31, 2020
Accounting Policies [Abstract]
Significant Accounting Policies	1. SIGNIFICANT ACCOUNTING POLICIES: Basis of Presentation: The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with U.S. Generally Accepted Accounting Principles (“GAAP”) on a going concern basis for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three months ended March 31, 2020 are not necessarily indicative of the results that may be expected for the year ended December 31, 2020. The condensed consolidated balance sheet at December 31, 2019, has been derived from the audited consolidated financial statements at that date, but does not include all of the information and footnotes required by U.S. GAAP for complete financial statements. For further information, refer to the consolidated financial statements and footnotes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2019. S ignificant Accounting Policies: Reclassifications: Certain amounts in the financial statements of prior periods have been reclassified to conform to the current period financial statement presentation. Reorganization Accounting: Effective May 14, 2020, as a result of the filing of the Chapter 11 Cases, the Company began accounting and reporting according to FASB ASC Topic 852 – , which specifies the accounting and financial reporting requirements for entities reorganizing through chapter 11 bankruptcy proceedings. These requirements include distinguishing transactions associated with the reorganization separate from activities related to the ongoing operations of the business. New Accounting Pronouncements: From time to time, the Financial Accounting Standards Board (“FASB”) or other standards setting bodies issue new accounting pronouncements. Updates to the FASB Accounting Standards Codification (“ASC”) are communicated through issuance of an Accounting Standards Update (“ASU”). Unless otherwise discussed, we believe that the impact of recently issued guidance, whether adopted or to be adopted in the future, is not expected to have a material impact on the consolidated financial statements upon adoption. Recent Accounting Pronouncements Not Yet Adopted : Financial Instruments. In June 2016, The FASB issued ASU 2016-13, (Topic 326), Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”). This ASU changes the methodology for measuring credit losses on financial instruments and the timing of when such losses are recorded. ASU 2016-13 is effective for the Company for starting January 1, 2023. The Company is currently assessing the impact of ASU 2016-13 on its consolidated financial statements. Income Taxes. In December 2019, the FASB issued authoritative guidance intended to simplify the accounting for income taxes (ASU 2019-12, This guidance eliminates certain exceptions to the general approach to the income tax accounting model and adds new guidance to reduce the complexity in accounting for income taxes. This guidance is effective for annual periods after December 15, 2020, including interim periods within those annual periods. We are currently evaluating the potential impact of this guidance on our consolidated financial statements. In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting

Revenue Recognition

Revenue Recognition	3 Months Ended
	Mar. 31, 2020
Revenue From Contract With Customer [Abstract]
Revenue Recognition	2. REVENUE RECOGNITION: Revenue from Contracts with Customers Sales of oil and natural gas are recognized at the point when title and custody (collectively, “control”) of the product is transferred to the customer, collectability is reasonably assured, and the performance obligations are satisfied. Virtually all of our contracts’ pricing provisions are tied to a market index, with certain adjustments based on, among other factors, whether a well delivers to a gathering line or a transmission line, the quality of the oil or natural gas, and prevailing supply and demand conditions. As a result, the price we receive for our produced oil and natural gas fluctuates to remain competitive with other available oil and natural gas supplies. Natural gas sales We sell natural gas production at the tailgate of the processing plant or at a delivery point downstream, as specified in the contracts with our customers. The production is sold at set volumes and we collect either (i) an agreed upon index price, (ii) a specific index price adjusted for pricing differentials, or (iii) a set price. We recognize revenue at the net price received when control transfers to the purchaser at the tailgate of the processing plant or at the agreed-upon delivery point. For these contracts, we have concluded that the Company is the principal for our net revenue interest share of the volumes being sold. Gathering fees are incurred prior to the customer taking control of the product, are not considered to be promised services, and are not included in the transaction price; thus, they are presented as expenses in the condensed consolidated statement of operations. Our working interest partners are considered the principal for their working interest shares. They have the option to take their gas volumes in kind. The Company may act as an agent and market the other partners’ share of the natural gas production from wells we operate. If it does so, the Company is considered the agent and revenue is recorded at the Company’s net revenue interest in the production. Oil sales We sell oil production at either (a) a lease automatic custody transfer meter, (b) a tank battery, or (c) a delivery point downstream, as specified in the contracts with our customers. The production is sold at set volumes and we collect either (i) an agreed upon index price, (ii) a specific index price adjusted for pricing differentials, or (iii) a set price. We recognize revenue at the point when the customer takes control of the product. For these contracts, we have concluded that the Company is the principal for its net revenue interest share of the volumes being sold. Gathering fees are performed prior to the customer taking control of the product, are not considered to be promised services, and are not included in the transaction price; thus, they are presented as expenses in the condensed consolidated statement of operations. Our working interest partners are considered the principal for their working interest shares. They have the option to take their oil volumes in kind. The Company acts as an agent and markets the other partners’ share of almost all oil production from wells we operate. In these situations, the Company is considered the agent and revenue is recorded at the Company’s net revenue interest in the production. Other revenues Our other revenue is comprised of fees paid to us by the operators of the gas processing plants where our gas is processed. Control is transferred upon completion of the processing service. The Company is considered the principal, and revenue is recognized at the point in time that the control is transferred. Transaction price allocated to remaining performance obligations A significant number of our product sales are short-term in nature with a contract term of one year or less at index-based prices. For those contracts, we have utilized the practical expedient in ASC 606-10-50-14 exempting the Company from disclosure of the transaction price allocated to remaining performance obligations if the performance obligation is part of a contract that has an original expected duration of one year or less. For our product sales that have a contract term greater than one year, we have utilized the practical expedient in ASC 606-10-50-14(a) which states that the Company is not required to disclose the transaction price allocated to remaining performance obligations if the variable consideration is allocated entirely to a wholly unsatisfied performance obligation. Under these sales contracts, each unit of product generally represents a separate performance obligation; therefore, future volumes are wholly unsatisfied, and disclosure of the transaction price allocated to remaining performance obligations is not required. Contract balances Under our product sales contracts, we invoice customers once our performance obligations have been satisfied, at which point payment is unconditional. Accordingly, our product sales contracts do not give rise to contract assets or liabilities under ASC 606. Prior-period performance obligations We record revenue in the month when control is transferred to the purchaser and all contractual obligations are satisfied. However, settlement statements for certain natural gas sales may not be received for 30 to 90 days after the date production is delivered. Consequently, we are required to estimate the amount of production delivered to the purchaser and the price that will be received for the sale of the product. We record the differences between our estimates and the actual amounts received for product sales in the month that payment is received from the purchaser. We have existing internal controls for our revenue estimation process and related accruals, and any identified differences between our revenue estimates and actual revenue received historically have been insignificant. Revenue recognized related to performance obligations satisfied in prior reporting periods was not material for the three months ended March 31, 2020 and 2019.

Other Current Assets

Other Current Assets	3 Months Ended
	Mar. 31, 2020
Other Current Assets [Abstract]
Other Current Assets	3. OTHER CURRENT ASSETS: The following table summarizes the major components of Other current assets included on the condensed consolidated balance sheet: March 31, December 31, 2020 2019 Deposits and retainers $ 526 $ 651 Prepaids and others 1,442 1,087 Crude oil 958 1,032 Pipe and production equipment 4,985 7,976 Total Other current assets $ 7,911 $ 10,746 During the quarter ended March 31, 2020, the Company recorded a write-down of pipe and production inventory to the lower of cost or net realizable value. The Company’s inventories are valued at the lower of cost or net realizable value, with cost determined using either the weighted-average cost, including the cost of transportation and storage, and with net realizable value defined as the estimated selling price in the ordinary course of business, less reasonably predictable costs of transportation. Accordingly, the Company recorded a write-down of pipe and production equipment of $3.3 million. The non-cash expense is reported as Other operating expenses on the condensed consolidated statement of operations.

Oil and Gas Properties

Oil and Gas Properties	3 Months Ended
	Mar. 31, 2020
Oil And Gas Property [Abstract]
Oil and Gas Properties	4 . OIL AND GAS PROPERTIES: March 31, December 31, 2020 2019 Proven properties: Acquisition, equipment, exploration, drilling and abandonment costs $ 11,820,726 $ 11,820,392 Less: Accumulated depletion, depreciation, amortization, and impairment (10,553,983 ) (10,267,973 ) Total Oil and gas properties, net $ 1,266,743 $ 1,552,419 The Company uses the full cost method of accounting for its oil and natural gas exploration and development activities and it is required to perform a ceiling test calculation each quarter. The full cost ceiling test is an impairment test prescribed by SEC Regulation S-X Rule 4-10. The ceiling test is performed quarterly, on a country-by-country basis, utilizing the average of prices in effect on the first day of the month for the preceding twelve-month period in accordance with SEC Release No. 33-8995. The ceiling limits such pooled costs to the aggregate of the present value of future net revenues attributable to proved crude oil and natural gas reserves discounted at 10%, plus the lower of cost or market value of unproved properties, less any associated tax effects. If such capitalized costs exceed the ceiling, the Company will record a write-down to the extent of such excess as a non-cash charge to earnings. In order to fulfill the obligation to evaluate the full cost ceiling and to calculate DD&A of its oil and gas properties, the Company is required to estimate its reserves on a quarterly basis. The estimated proven oil and gas reserves considers the estimated future production based on the most current well information available including decline rate changes causing downward revisions and updated pricing in accordance with SEC requirements. The reserve estimated as of March 31, 2020 were prepared by Netherland, Sewell & Associates, Inc. The comparable calculated average SEC prices utilized in the preparation of the reserves as of March 31, 2020 were $2.07 per Mcf and $55.35 per Bbl. These prices represent a decrease of 15% and <1% for natural gas and oil, respectively, as compared to the pricing utilized as of December 31, 2019. As a result of the decrease in both quantities of oil and gas reserves, as well as the discounted future cash flow estimates, the Company recorded an increased rate of DD&A per Mcfe and recorded a $242.6 million non-cash write-down of the carrying value of the Company’s oil and gas properties from the ceiling test limitation as of March 31, 2020. Given the continued depressed commodity prices, there is a reasonable possibility that the value of the reserves will be further reduced in future quarters, requiring an additional ceiling test write-down.

Earning Per Share

Earning Per Share	3 Months Ended
	Mar. 31, 2020
Earnings Per Share [Abstract]
Earning Per Share	5. EARNINGS PER SHARE: Basic earnings per share is computed by dividing net earnings attributable to common shareholders by the weighted average number of common shares outstanding during each period. Diluted earnings per share is computed by adjusting the average number of common shares outstanding for the dilutive effect, if any, of common stock equivalents. The Company uses the treasury stock method to determine the dilutive effect. Certain share-based payments subject to market conditions are considered contingently issuable shares for purposes of calculating diluted earnings per share. Thus, they are excluded from the diluted earnings per share denominator until the market conditions are met. Additionally, warrants are excluded from the diluted earnings per share denominator until the date on which the volume-weighted average price of the Common Shares is at least $2.50 per Common Share for 30 consecutive trading days . For further information on the warrants, refer to the consolidated financial statements and footnotes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2019. The following table provides a reconciliation of components of basic and diluted net income per common share: For the Three Months Ended March 31, 2020 2019 (Share amounts in 000's) Net income (loss) $ (217,605 ) $ 40,674 Weighted average common shares outstanding - basic 198,333 197,383 Effect of dilutive instruments — 418 Weighted average common shares outstanding - diluted 198,333 197,801 Basic $ (1.10 ) $ 0.21 Diluted $ (1.10 ) $ 0.21

Debt

Debt	3 Months Ended
	Mar. 31, 2020
Debt Disclosure [Abstract]
Debt	6. DEBT: Chapter 11 Cases and Effect of Automatic Stay. On May 14, 2020, the Debtors filed for relief under Chapter 11 of the United States Bankruptcy Code. The commencement of a voluntary proceeding in bankruptcy constitutes an immediate event of default under the Credit Agreement, Term Loan Agreement, Second Lien Indenture, and the Unsecured Notes Indentures, resulting in the automatic and immediate acceleration of all of the Company’s outstanding debt. Any efforts to enforce payment obligations related to the Company’s debt, including the acceleration thereof, have been automatically stayed as a result of the filing of the Chapter 11 Cases, and the creditors’ rights of enforcement are subject to the applicable provisions of the United States Bankruptcy Code. For more information on the Chapter 11 Cases and related matters, refer to the Introductory Note – Voluntary Reorganization under Chapter 11. All debt obligations has been classified as current as of March 31, 2020. The following tables summarize the Company’s debt instruments as of March 31, 2020, and December 31, 2019: March 31, 2020 Principal repayment obligation (1) Unamortized DFC and discounts (2)(3) Unamortized premium (3) Carrying value Credit Facility, secured, due January 2022 $ — $ — $ — $ — Term Loan, secured, due April 2024 966,319 (21,359 ) — 944,960 Second Lien Notes, secured, due July 2024 586,770 — 193,237 780,007 6.875% Notes, unsecured, due April 2022 150,439 (10,077 ) — 140,362 7.125% Notes, unsecured, due April 2025 225,000 (12,294 ) — 212,706 Total debt, net $ 1,928,528 $ (43,730 ) $ 193,237 $ 2,078,035 (1) Includes PIK interest on the Term Loan and Second Lien Notes of $1.1 million and $14.7 million, respectively. (2) Deferred financing costs related to the Revolving Credit Facility are reported within Other assets on the condensed consolidated balance sheet, rather than as a reduction of the carrying amount of long-term debt. (3) As a result of the Bankruptcy Petitions filed on May 14, 2020, subsequent to March 31, 2020, the Company wrote off approximately $144.0 million of unamortized net deferred financing costs, discounts, and premium, net. December 31, 2019 Principal repayment obligation (1) Unamortized DFC and discounts (2) Unamortized premium Carrying value Credit Facility, secured, due January 2022 $ 64,700 $ — $ — $ 64,700 Term Loan, secured, due April 2024 968,756 (22,498 ) — 946,258 Second Lien Notes, secured, due July 2024 583,853 — 203,883 787,736 6.875% Notes, unsecured, due April 2022 150,439 (11,146 ) — 139,293 7.125% Notes, unsecured, due April 2025 225,000 (12,777 ) — 212,223 Total debt, net $ 1,992,748 $ (46,421 ) $ 203,883 $ 2,150,210 (1) Includes PIK interest on the Term Loan and Second Lien Notes of $1.1 million and $11.8 million, respectively. (2) Deferred financing costs related to the Revolving Credit Facility are reported within Other assets on the condensed consolidated balance sheet, rather than as a reduction of the carrying amount of long-term debt. Credit Agreement. On April 12, 2017, Ultra Resources entered into the Credit Agreement, as the borrower, with the Company and UPE, as parent guarantors, Bank of Montreal, as administrative agent (the “RBL Administrative Agent”), and the other lenders party thereto from time to time (collectively, the “RBL Lenders”), providing for a revolving credit facility (the “Revolving Credit Facility”) subject to a borrowing base redetermination, which limits the aggregate amount of first lien debt under the Revolving Credit Facility and Term Loan Agreement. As of March 31, 2020, Ultra Resources had zero outstanding borrowings under the Revolving Credit Facility. The Company had $10.2 million of outstanding letters of credit. Total commitments under the Revolving Credit Facility were $100 million. As a result of the commencement of the Chapter 11 Cases, the Company is no longer in compliance with the covenants under the Credit Agreement and the lender’s commitments under the Credit Agreement have been terminated. The Company is therefore unable to make additional borrowings or issue additional letters of credit under the Credit Agreement. In February 2020, Ultra Resources entered into a Sixth Amendment to the Credit Agreement (the “Sixth Amendment”) with the RBL Administrative Agent and the RBL Lenders party thereto. Pursuant to the Sixth Amendment and the spring 2020 borrowing base redetermination, both of which were completed in February 2020, the Borrowing Base (as defined in the Credit Agreement) was reduced, effective April 1, 2020, to $1.075 billion, with $100 million attributed to the Revolving Credit Facility. As described in previous periodic reports, the commitment amount for the Revolving Credit Facility was reduced from $200 million to $120 million on February 29, 2020 based on the Fifth Amendment to the Credit agreement, and then from $120 million to $100 million, as established by the Sixth Amendment. Also included in the Sixth Amendment was the reduction of the anti-cash hoarding amount to $15 million and a provision to complete the borrowing base redetermination quarterly. Prior to default and as stayed by the relief provided by the filing of the Chapter 11 Cases, t he Revolving Credit Facility has $35.0 million of the commitments available for the issuance of letters of credit. The Revolving Credit Facility bears interest either at a rate equal to (a) a customary London interbank offered rate plus an applicable margin that varies from 250 to 350 basis points or (b) the base rate plus an applicable margin that varies from 150 to 250 basis points based upon the borrowing base utilization grid. The applicable margin increases by 25 basis points in the event the Company’s consolidated net leverage ratio, as defined, exceeds 4.00 to 1.00. Ultra Resources is required to pay a commitment fee on the average daily unused portion of the Revolving Credit Facility, of 50 basis points. Ultra Resources is also required to pay customary letter of credit and fronting fees. The Revolving Credit Facility’s original maturity date is January 12, 2022; however, if the Plan is confirmed the Revolving Credit Facility will terminate in connection with the Company’s emergence from bankruptcy. The Credit Agreement established a maximum capital expenditure provision and other affirmative and negative covenants which are no longer applicable under the mandatory stay order effected by the Chapter 11 filing. The affirmative and negative covenants include compliance with laws (including environmental laws, ERISA and anti-corruption laws), delivery of quarterly and annual financial statements and oil and gas engineering reports, maintenance and operation of property (including oil and gas properties), restrictions on the incurrence of liens, indebtedness, asset dispositions, fundamental changes, restricted payments and other customary covenants. Refer to Note 6 – Debt in the 2019 Form 10-K for additional details on the terms of the Revolving Credit Facility. Term Loan. On April 12, 2017, Ultra Resources entered into the Term Loan Agreement, as borrower, with the Company and UPE, as parent guarantors, Barclays Bank PLC, as administrative agent, and with the other lenders party thereto from time to time (collectively, the “Term Loan Lenders”) providing for a term loan credit facility. As of March 31, 2020, Ultra Resources had a balance of approximately $966.3 million in borrowings, including $1.1 million of PIK interest. The administrative and collateral agent responsibilities were transferred to WTNA on May 14, 2020. Subject to the stay order referenced previously, borrowings under the Term Loan Agreement bear interest at a rate equal to either (a) a customary London interbank offered rate plus 400 basis points or (b) the base rate plus 300 basis points, in each case, of which 25 basis points of the applicable margin is payable-in-kind (“PIK”) solely upon election by Ultra Resources. During 2019, the Company has elected the PIK option for several of its selected interest payments. In the third quarter 2019, the Company began electing not to utilize this PIK option. Prior to default, the borrowings under the Term Loan Agreement amortized in equal quarterly installments in aggregate annual amounts equal to 0.25% of the initial aggregate principal amount. The stated maturity date of the Term Loan Agreement is April 12, 2024; however, the Term Loan Agreement and its maturity date will be impacted by the final resolution of the Chapter 11 Cases. Other provisions of the Term Loan have been disclosed in previous regulatory filings and have been deleted from this filing as the compliance elements of the Term Loan are stayed by the bankruptcy filing under the Chapter 11 Cases. Refer to Note 6 – Debt in the 2019 Form 10-K for additional details on the terms of the Term Loan Agreement. Second Lien Notes. As of March 31, 2020, Ultra Resources had approximately $586.8 million, including $14.7 million of PIK interest, in outstanding borrowings of the Second Lien Notes pursuant to the Indenture, dated December 21, 2018 (the “Second Lien Notes Indenture”), with Ultra Resources, as issuer, the Company and its other subsidiaries, as guarantors, and WTNA, as trustee and collateral agent. The trustee and collateral agent responsibilities were transferred to US Bank, N.A. on May 14, 2020. The Second Lien Notes are senior secured obligations of Ultra Resources and rank senior in right of payment to all of its existing and future unsecured senior debt, to the extent of the value of the collateral pledged under the Second Lien Notes Indenture and related collateral arrangements, senior in right of payment to all of its future subordinated debt, and junior in right of payment to all of its existing and future secured debt of senior priority, to the extent of the value of the collateral pledged thereby. The Second Lien Notes are secured by second priority security interests in substantially all assets of the Company. Payment by Ultra Resources of all amounts due on or in respect of the Second Lien Notes and the performance of Ultra Resources under the Indenture are initially guaranteed by the Company. Subject to the stay order previously described, i nterest on the Second Lien Notes accrued at (i) an annual rate of 9.00% payable in cash and (ii) an annual rate of 2.00% PIK. The cash interest payment dates for the Second Lien Notes were January 15 and July 15 of each year, commencing in July 2019. The Company has accounted for such PIK interest as an increase to the principal outstanding. The Second Lien Notes have a stated maturity date of July 12, 2024; however, the Second Lien Notes and their maturity date will be impacted by the final resolution of the Chapter 11 Cases. Other provisions of the Second Lien Notes have been disclosed in previous filings and have been deleted from this filing as compliance elements of the Second Lien Notes are stayed by the bankruptcy filing under the Chapter 11 Cases. Refer to Note 6 – Debt in the 2019 Form 10-K for additional details on the terms of the Second Lien Notes. Senior Unsecured Notes . At March 31, 2020, Ultra Resources had approximately $150.4 million of the 2022 Notes outstanding and $225.0 million of the 2025 Notes outstanding. The Unsecured Notes are treated as a single class of securities under the Unsecured Notes Indenture. UMB Bank, N.A. is now serving as the trustee for the Unsecured Notes Indenture. Prior to default, t he 2022 Notes were scheduled to mature on April 15, 2022. Interest on the 2022 Notes accrued at an annual rate of 6.875% and interest payment dates for the 2022 Notes were April 15 and October 15 of each year. DIP Credit Agreement . In connection with the RSA and the Chapter 11 Cases, Ultra Resources entered into the DIP Credit Agreement. The DIP Credit Agreement provides for the DIP Facility. Ultra intends to use proceeds of the DIP Facility, among other things: (1) to pay interest, fees, costs and expenses related to the loans thereunder, (2) to pay the fees, costs and expenses of the estate professionals retained in the Chapter 11 Cases and approved by the Court, (3) to pay the fees, costs, disbursements and expenses of the Consenting Term Lenders, (4) to make all permitted payments of costs of administration of the Chapter 11 Cases, (5) to pay such prepetition expenses as are consented to in writing by the Required Lenders (as defined in the DIP Credit Agreement) and approved by the Court, (6) to satisfy any adequate protection obligations owing under the DIP Orders (as defined in the RSA); and (7) for general corporate and working capital purposes of the Debtors during the Chapter 11 Cases. The DIP Facility bears an interest rate of LIBOR plus 100 basis points, subject to a LIBOR floor of 1.0%. Unutilized fees are 50 basis points and the upfront fees were $0.4 million. The DIP Facility is subject to certain affirmative and negative covenants, including, among other covenants the Company believes to be customary in debtor-in-possession financings, reporting by the Filing Subsidiaries in the form of a rolling 13-week budget and a weekly report with a reasonably detailed written explanation of all material variances from the budget.

Share Based Compensation

Share Based Compensation	3 Months Ended
	Mar. 31, 2020
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Share Based Compensation	7. SHARE BASED COMPENSATION: Valuation and Expense Information For the Three Months Ended March 31, 2020 2019 Total cost of share-based payment plans $ 1,231 $ 1,127 Amounts capitalized in oil and gas properties and equipment $ 51 $ 286 Amounts charged against income, before income tax benefit $ 1,180 $ 841 Amount of related income tax benefit recognized in income before valuation allowance $ 248 $ 177 Performance Share Plans : 2017 Stock Incentive Plan. In April 2017, the Ultra Petroleum Corp. 2017 Stock Incentive Plan (“2017 Stock Incentive Plan”) was established by our board of directors (the “Board”) pursuant to which 7.5% of the equity in the Company (on a fully-diluted/fully-distributed basis) is reserved for grants to be made from time to time to the directors, officers, employees, and consultants of the Company. In March 2019, management incentive plan grants were exchanged for new equity awards of time-based and performance-based restricted stock units. The Company evaluated the cancellation of an outstanding award of stock-based compensation followed by the issuance of a replacement award under ASC 718. For this modification, the fair value of the award is assessed both prior to modification and after modification. Per ASC 718, if the fair value after modification exceeds the fair value prior to modification, incremental expense is generated and recognized over the remaining vesting period. Long Term Incentive Awards. In 2018 and March 2019, the Board approved long-term incentive awards under the 2017 Stock Incentive Plan in order to further align the interests of key employees with shareholders and to give key employees the opportunity to share in the long-term performance of the Company when specific corporate financial and operational goals are achieved. The awards cover a performance period of three years and include time-based and performance-based measures established by the Board at the beginning of the three-year period. Stock-Based Compensation Cost : Market-Based Condition Awards. When vesting of an award of stock-based compensation is dependent, at least in part, on the value of a company’s total equity, for purposes of FASB ASC 718, the award is considered to be subject to a “market condition”. Because the Company’s total equity value is a component of its enterprise value, the awards based on enterprise value are considered to be subject to a market condition. Unlike the valuation of an award that is subject to a service condition (i.e., time vested awards) or a performance condition that is not related to stock price, FASB ASC 718 requires the impact of the market condition to be considered when estimating the fair value of the award. As a result, we have used a Monte Carlo simulation model to estimate the fair value of the awards that include a market condition. FASB ASC 718 requires the expense for an award of stock-based compensation that is subject to a market condition that can be attained at any point during the performance period to be recognized over the shorter of (a) the period between the date of grant and the date the market condition is attained, and (b) the award’s derived service period. For purposes of FASB ASC 718, the derived service period represents the duration of the median of the distribution of share price paths on which the market condition is satisfied. That median is the middle share price path (the midpoint of the distribution of paths within the model) on which the market condition is satisfied. The duration is the period of time from the service inception date to the expected date of market condition satisfaction. Compensation expense is recognized regardless of whether the market condition is actually satisfied. Expense. The accounting for existing share-based compensation awards will continue throughout the period covered by the Chapter 11 Cases. For the three months ended March 31, 2020, the Company recognized $1.2 million in pre-tax compensation expense, which is included within General and administrative expenses on the condensed consolidated statement of operations. During the three months ended March 31, 2019, the Company recognized $0.8 million in pre-tax compensation expense.

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2020
Income Tax Disclosure [Abstract]
Income Taxes	8. INCOME TAXES: The Company’s overall effective tax rate on pre-tax income was different than the statutory rate of 21% due primarily to the adjustment of the valuation allowances against the deferred tax assets. The Company has a valuation allowance recorded against all deferred tax assets as of March 31, 2020. Some or all of this valuation allowance may be reversed in future periods against future income. On December 22, 2017, the Tax Cuts and Jobs Act (the “Tax Act”) was enacted into law. Further guidance and clarifications continue to be issued regarding the regulations and provisions of the Tax Act. The Company will continue to monitor these new regulations and analyze their applicability and impact on the Company. On March 27, 2020, President Trump signed into law the Coronavirus Aid, Relief, and Economic Security Act (the “CARES Act”). The CARES Act, among other things, includes provisions relating to refundable payroll tax credits, deferment of employer side social security payments, net operating loss carryback periods, alternative minimum tax credit refunds, modifications to the net interest deduction limitations and technical corrections to tax depreciation methods for qualified improvement property. The Company continues to examine the impact that the CARES Act may have on its business but does not expect the impact to be material. The future availability of U.S. federal income tax attributes associated with existing net operating loss carryforwards, interest deduction carryforwards, and other tax attributes of the Company will be affected by the ultimate outcome of the Chapter 11 Cases. Generally speaking, the equitization and termination of indebtedness will result in cancelation of indebtedness income (“CODI”). While anticipated CODI will not result in an immediate tax liability to the Company, such CODI will result in a reduction of our tax attributes. Additionally, the “ownership change” that will result, from the anticipated equitization will, under section 382 of the Internal Revenue Code of 1986, as amended, result in a significant limitation being imposed on our ability to utilize certain tax attributes, unless we are able to, and do not elect to, utilize section 382(l)(5) of the Internal Revenue Code of 1986.

Derivative Financial Instrument

Derivative Financial Instruments	3 Months Ended
	Mar. 31, 2020
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	9. DERIVATIVE FINANCIAL INSTRUMENTS: Objectives and Strategy: The Company’s major market risk exposure is in the pricing applicable to its natural gas and oil production. Realized pricing is currently driven primarily by the prevailing price for the Company’s natural gas production. Historically, prices received for natural gas production have been volatile and unpredictable. Pricing volatility is expected to continue. The prices we receive for our production depend on many factors outside of our control, including volatility in the differences between product prices at sales points and the applicable index price. The Company relies on various types of derivative instruments to manage its exposure to commodity price risk and to provide a level of certainty in the Company’s forward cash flows supporting the Company’s operations and capital investment program. These types of instruments may include fixed price swaps, costless collars, deferred premium puts or basis differential swaps. These contracts are financial instruments, and do not require or allow for physical delivery of the hedged commodity. While mitigating the effects of fluctuating commodity prices, these derivative contracts may limit the benefits we would otherwise receive from increases in commodity prices above the fixed hedge prices. Under the Revolving Credit Facility, t he Company was subject to minimum hedging requirements through As a result of the Chapter 11 filing and while in bankruptcy, the terms of the DIP facility and the exit revolving credit facility commitment filed with the Plan limits the Company’s ability to enter into hedges for no more than 25% and 15% of its projected monthly proved developed oil and gas reserve projections in 2020 and 2021, respectively. Following the Company’s emergence from bankruptcy, the terms of the exit revolving credit facility will require the Company to have a rolling hedging requirement, based on the most recently delivered reserve report, of 33% of forecast natural gas production for the immediately succeeding twelve-month period, plus a minimum of 25% of forecast natural gas production for the immediate succeeding six-month period thereafter. Fair Value of Commodity Derivatives: The Company follows FASB ASC Topic 815, Derivatives and Hedging (“ASC 815”). The Company does not apply hedge accounting to any of its derivative instruments. Instead, in accordance with ASC 815 the derivative contracts are recorded at fair value as derivative assets and liabilities on the condensed consolidated balance sheets and the associated unrealized gains and losses are recorded as current income or expense on the condensed consolidated statements of operations. The Company does not offset the value of its derivative arrangements with the same counterparty. Unrealized gains or losses on commodity derivatives represent the non-cash change in the fair value of these derivative instruments and do not impact operating cash flows on the condensed consolidated statements of cash flows . Commodity Derivative Contracts: At March 31, 2020, the Company had open commodity derivative contracts to manage commodity price risks as presented in the table below. For the fixed price swaps, the Company receives the fixed price for the contract and pays the variable price to the counterparty. For the basis swaps, the Company receives a fixed price for the difference between two sales points for a specified commodity volume over a specified time period. For the collars, the Company pays the counterparty if the market price is above the ceiling price and the counterparty pays if the market price is below the floor price on a notional quantity. For deferred premium puts, the Company pays the deferred premium in the month of settlement. To the extent the market price is below the put price, the counterparty owes the Company the difference between the market price and put price in the period of settlement. The reference prices of these commodity derivative contracts are typically referenced to index prices as published by independent third parties . Refer to Note 10 – Fair Value Measurements for more information regarding the fair value of the Company’s derivative instruments. The table below reflects the commodity derivative contracts that were outstanding as of March 31, 2020. Subsequent to March 31, 2020, the Company received $ 8.3 from the fair values as of March 31, 2020, due to different commodity prices at the time of settlement. Type/Year Index Total Volumes Weighted Average Price per Unit Fair Value - March 31, 2020 (in millions) Asset (Liability) Crude oil fixed price swaps (Bbl) ($/Bbl) 2020 (April through September) NYMEX-WTI 0.2 $ 59.79 $ 7,960 Type/Year Index Total Volumes Weighted Average Floor Price ($/MMBTU) Weighted Average Ceiling Price ($/MMBTU) Fair Value - March 31, 2020 (in millions) Asset (Liability) Natural gas collars (Mmbtu) 2020 (April through December) NYMEX 57.4 $ 2.39 $ 2.87 $ 26,255 2021 NYMEX 7.2 $ 2.46 $ 3.05 $ (180 ) Natural gas deferred premium put options (1) (Mmbtu) 2020 (April through December) NYMEX 13.4 $ 2.42 N/A $ 5,360 (1) The natural gas deferred premium put options include an average deferred premium cost of $0.13. The following table summarizes the pre-tax realized and unrealized gain (loss) the Company recognized related to its derivative instruments in the condensed consolidated statements of operations for the three months ended March 31, 2020 and 2019: For the Three Months Ended March 31, Commodity Derivatives (in thousands): 2020 2019 Realized gain on commodity derivatives - natural gas (1) $ 11,452 $ (81,203 ) Realized gain on commodity derivatives - oil (1) 4,897 2,572 Unrealized gain on commodity derivatives (1) 27,945 14,292 Total gain (loss) on commodity derivatives $ 44,294 $ (64,339 ) (1) Included in Gain (Loss) on commodity derivatives in the condensed consolidated statements of operations.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2020
Fair Value Disclosures [Abstract]
Fair Value Measurements	10. FAIR VALUE MEASUREMENTS: As required by FASB ASC 820, the Company defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date and establishes a three-level hierarchy for measuring fair value. Fair value measurements are classified and disclosed in one of the following categories: Level 1 : Quoted prices (unadjusted) in active markets for identical assets and liabilities that the Company has the ability to access at the measurement date. Level 2 : Inputs other than quoted prices included within Level 1 that are either directly or indirectly observable for the asset or liability, including quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in inactive markets, inputs other than quoted prices that are observable for the asset or liability, and inputs that are derived from observable market data by correlation or other means. Instruments categorized in Level 2 include non-exchange traded derivatives such as over-the-counter forwards and swaps. Level 3 : Unobservable inputs for the asset or liability, including situations where there is little, if any, market activity for the asset or liability. The valuation assumptions the Company has used to measure the fair value of its commodity derivatives were observable inputs based on market data obtained from independent sources and are considered Level 2 inputs (quoted prices for similar assets, liabilities (adjusted) and market-corroborated inputs). Level 1 Level 2 Level 3 Total Assets: Current derivative asset $ — $ 44,261 $ — $ 44,261 Total derivative instruments $ — $ 44,261 $ — $ 44,261 Liabilities: Current derivative liability $ — $ 4,866 $ — $ 4,866 Total derivative instruments $ — $ 4,866 $ — $ 4,866 The Company entered into commodity derivative contracts and as a result, we expose ourselves to counterparty credit risk. Credit risk is the potential failure of the counterparty to perform under the terms of a derivative contract. In order to minimize our credit risk in derivative instruments, we (i) enter into derivative contracts with counterparties that our management has deemed credit worthy as competent and competitive market makers and (ii) routinely monitor and review the credit of our counterparties. In addition, each of our current counterparties are lenders under our Revolving Credit Facility. We believe that all of our counterparties are of substantial credit quality. Other than as provided in our Revolving Credit Facility, we are not required to provide credit support or collateral to any of our counterparties under our derivative contracts, nor are they required to provide credit support to us. As of March 31, 2020, we did not have any past-due receivables from, or payables to, any of the counterparties of our derivative contracts. Refer to Note 9 – Derivative Financial Instruments for additional details on our derivative financial instruments. Assets and Liabilities Measured on a Non-Recurring Basis The Company uses fair value to determine the value of its asset retirement obligations. The inputs used to determine such fair value under the expected present value technique are primarily based upon internal estimates prepared by reservoir engineers for costs of dismantlement, removal, site reclamation and similar activities associated with the Company’s oil and gas properties and would be classified Level 3 inputs. Fair Value of Financial Instruments The estimated fair value of financial instruments is the estimated amount at which the instrument could be exchanged currently between willing parties. The carrying amounts reported in the Condensed Consolidated Balance Sheets for cash and cash equivalents, restricted cash, accounts receivable, and accounts payable approximate fair value due to the immediate or short-term maturity of these financial instruments. The carrying amount of floating-rate debt approximates fair value because the interest rates are variable and reflective of market rates. Financial Instruments March 31, 2020 December 31, 2019 Principal Estimated Principal Estimated repayment obligation Fair Value repayment obligation Fair Value Credit Facility, secured, due January 2022 $ - $ - $ 64,700 $ 64,700 Term Loan, secured, due April 2024 966,319 396,191 968,756 566,723 Second Lien Notes, secured, due July 2024 586,770 44,008 583,853 86,994 6.875% Notes, unsecured, due April 2022, issued 2017 150,439 16,172 150,439 18,805 7.125% Notes, unsecured, due April 2025, issued 2017 225,000 16,598 225,000 15,750 Total debt $ 1,928,528 $ 472,969 $ 1,992,748 $ 752,972

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2020
Commitments And Contingencies Disclosure [Abstract]
Commitments And Contingencies	11. COMMITMENTS AND CONTINGENCIES: Chapter 11 Proceedings On May 14, 2020, the Debtors filed the Chapter 11 Cases seeking relief under the Bankruptcy Code. The Company expects to continue operations in the normal course for the duration of the Chapter 11 Cases. In addition, commencement of the Chapter 11 Cases automatically stayed all of the proceedings and actions against the Company (other than regulatory enforcement matters), including those noted below. For more information on the Chapter 11 Cases and related matters, refer to the Introductory Note – Voluntary Reorganization Under Chapter 11 and Note 6 – Debt. Litigation Matters Pending Claims – Ultra Resources Indebtedness On April 29, 2016, the Company and its subsidiaries filed voluntary petitions under Chapter 11 of the United States Bankruptcy Code in the Court. Our 2016 Chapter 11 cases were jointly administered under the caption In re Ultra Petroleum Corp. Debtors’ Second Amended Joint Chapter 11 Plan of Reorganization The Prior Plan provided for the treatment of claims against our bankruptcy estates, including claims for prepetition liabilities that have not otherwise been satisfied or addressed before we emerged from Chapter 11 proceedings. The claims resolution process associated with our Chapter 11 proceedings is on-going, and we expect it to continue for an indefinite period of time. During our previous bankruptcy proceedings in 2016 and 2017, many holders of this indebtedness filed proofs of claim with the Court, asserting claims for the outstanding balance of the indebtedness, unpaid prepetition interest, unpaid postpetition interest (including interest at the default rates under the prepetition debt agreements), make-whole amounts, and other fees and obligations allegedly arising under the prepetition debt agreements. As previously disclosed, in connection with our emergence from bankruptcy and in accordance with the Prior Plan, all of our obligations with respect to Ultra Resources prepetition indebtedness and the associated debt agreements were cancelled, except to the limited extent expressly set forth in the Prior Plan, and the holders of claims related to the indebtedness received payment in full of allowed claims (including with respect to outstanding principal, unpaid prepetition interest, and certain other prepetition fees and obligations arising under the debt agreements). In connection with the confirmation and consummation of the Prior Plan, we entered into a stipulation with the claimants pursuant to which we agreed to establish and fund a $400.0 million reserve account after the Company’s emergence from bankruptcy, pending resolution of make-whole and postpetition interest claims. On April 14, 2017, we funded the account. Following our emergence from bankruptcy, we continued to dispute the claims made by holders of the Ultra Resources’ indebtedness for certain make-whole amounts and postpetition interest at the default rates provided for in the debt agreements. On September 22, 2017, the Court denied the Company’s objection to the pending make-whole and postpetition interest claims. On October 6, 2017, the Court entered an order requiring the Company to distribute amounts attributable to the disputed claims to the applicable parties. Pursuant to the order, on October 12, 2017, the Company distributed $399.0 million from the reserve fund to the parties asserting the make-whole and postpetition interest claims and $1.3 million (the balance remaining after distributions to the parties asserting claims) was returned to the Company. The disbursement of $399.0 million was comprised of $223.8 million representing the fees owed under the make-whole claims and $175.2 million representing postpetition interest at the default rate. The Company appealed the court order denying its objections to these claims to the U.S. Court of Appeals for the Fifth Circuit (the “Appellate Court”). During the fourth quarter of 2018, the Company entered into settlement agreements (collectively, the “Settlement Agreements”) with holders of certain claims related to Ultra Resources’ prepetition indebtedness (the “Claimants”) pursuant to which the parties agreed to settle the pending disputes between the Claimants and the Company. Under the terms of the Settlement Agreements, the Claimants collectively agreed to pay approximately $16.4 million to the Company. On January 17, 2019, the Appellate Court issued an opinion vacating the order of the Court that had denied the Company’s objection to the asserted make-whole and post-petition interest claims and remanding the matter and those determinations to the Court for further reconsideration. On January 31, 2019, the holders of these claims filed a petition for rehearing en banc. During 2019, the Company entered into additional settlement agreements with holders of certain make-whole and post-petition interest claims. Pursuant to these settlements, the parties agreed to settle the pending disputes between such holders and the Company, and the holders collectively agreed to pay approximately $13.5 million to the Company. As of March 31, 2020, there is approximately $240 million of claims subject to the Appellate Court decision. It is not possible to determine the ultimate disposition of these matters at this time. Other Claims We are also party to various disputes with respect to certain overriding royalty and net profits interests in certain of our operated leases in the Pinedale field. At this time, no determination of the outcome of these claims can be made, and we cannot reasonably estimate the potential impact of these claims. We are defending these cases vigorously, and we expect these claims to be resolved in our Chapter 11 proceedings. In addition, we are currently involved in various routine disputes and allegations incidental to our business operations. While it is not possible to determine the ultimate disposition of these matters, we believe the Company has adequately reserved for such items where it has been determined that a liability is probable and is reasonably estimable. Additionally, we believe that resolution of all such additional pending or threatened litigation is not likely to have a material adverse effect on our financial position, results of operations, or cash flows.

Subsequent Events

Subsequent Events	3 Months Ended
	Mar. 31, 2020
Subsequent Events [Abstract]
Subsequent Events	12. SUBSEQUENT EVENTS: As previously mentioned, the Company filed for bankruptcy protection under Chapter 11 on May 14, 2020. For more information on the Chapter 11 Cases and related matters, refer to the Introductory Note – Voluntary Reorganization under Chapter 11 and Note 6 – Debt in the notes to the unaudited condensed consolidated financial statements. The Company has evaluated the period subsequent to March 31, 2020, for material events that did not exist at the balance sheet date but arose after that date and determined that no additional subsequent events arose that should be disclosed in order to keep the financial statements from being misleading, except as otherwise disclosed herein

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2020
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation: The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with U.S. Generally Accepted Accounting Principles (“GAAP”) on a going concern basis for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three months ended March 31, 2020 are not necessarily indicative of the results that may be expected for the year ended December 31, 2020.
Significant Accounting Policies	S ignificant Accounting Policies:
Reclassifications	Reclassifications: Certain amounts in the financial statements of prior periods have been reclassified to conform to the current period financial statement presentation.
Reorganization Accounting	Reorganization Accounting: Effective May 14, 2020, as a result of the filing of the Chapter 11 Cases, the Company began accounting and reporting according to FASB ASC Topic 852 – , which specifies the accounting and financial reporting requirements for entities reorganizing through chapter 11 bankruptcy proceedings. These requirements include distinguishing transactions associated with the reorganization separate from activities related to the ongoing operations of the business.
New Accounting Pronouncements	New Accounting Pronouncements: From time to time, the Financial Accounting Standards Board (“FASB”) or other standards setting bodies issue new accounting pronouncements. Updates to the FASB Accounting Standards Codification (“ASC”) are communicated through issuance of an Accounting Standards Update (“ASU”). Unless otherwise discussed, we believe that the impact of recently issued guidance, whether adopted or to be adopted in the future, is not expected to have a material impact on the consolidated financial statements upon adoption.
Recent Accounting Pronouncements Not Yet Adopted	Recent Accounting Pronouncements Not Yet Adopted : Financial Instruments. In June 2016, The FASB issued ASU 2016-13, (Topic 326), Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”). This ASU changes the methodology for measuring credit losses on financial instruments and the timing of when such losses are recorded. ASU 2016-13 is effective for the Company for starting January 1, 2023. The Company is currently assessing the impact of ASU 2016-13 on its consolidated financial statements. Income Taxes. In December 2019, the FASB issued authoritative guidance intended to simplify the accounting for income taxes (ASU 2019-12, This guidance eliminates certain exceptions to the general approach to the income tax accounting model and adds new guidance to reduce the complexity in accounting for income taxes. This guidance is effective for annual periods after December 15, 2020, including interim periods within those annual periods. We are currently evaluating the potential impact of this guidance on our consolidated financial statements. In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting

Other Current Assets (Tables)

Other Current Assets (Tables)	3 Months Ended
	Mar. 31, 2020
Other Current Assets [Abstract]
Schedule of Other Current Assets	The following table summarizes the major components of Other current assets included on the condensed consolidated balance sheet: March 31, December 31, 2020 2019 Deposits and retainers $ 526 $ 651 Prepaids and others 1,442 1,087 Crude oil 958 1,032 Pipe and production equipment 4,985 7,976 Total Other current assets $ 7,911 $ 10,746

Oil and Gas Properties (Tables)

Oil and Gas Properties (Tables)	3 Months Ended
	Mar. 31, 2020
Oil And Gas Property [Abstract]
Schedule of Oil and Gas Properties	March 31, December 31, 2020 2019 Proven properties: Acquisition, equipment, exploration, drilling and abandonment costs $ 11,820,726 $ 11,820,392 Less: Accumulated depletion, depreciation, amortization, and impairment (10,553,983 ) (10,267,973 ) Total Oil and gas properties, net $ 1,266,743 $ 1,552,419

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2020
Earnings Per Share [Abstract]
Reconciliation of Components of Basic and Diluted Net Income Per Common Share	The following table provides a reconciliation of components of basic and diluted net income per common share: For the Three Months Ended March 31, 2020 2019 (Share amounts in 000's) Net income (loss) $ (217,605 ) $ 40,674 Weighted average common shares outstanding - basic 198,333 197,383 Effect of dilutive instruments — 418 Weighted average common shares outstanding - diluted 198,333 197,801 Basic $ (1.10 ) $ 0.21 Diluted $ (1.10 ) $ 0.21

Debt (Tables)

Debt (Tables)	3 Months Ended
	Mar. 31, 2020
Debt Disclosure [Abstract]
Summary of Debt Instruments	The following tables summarize the Company’s debt instruments as of March 31, 2020, and December 31, 2019: March 31, 2020 Principal repayment obligation (1) Unamortized DFC and discounts (2)(3) Unamortized premium (3) Carrying value Credit Facility, secured, due January 2022 $ — $ — $ — $ — Term Loan, secured, due April 2024 966,319 (21,359 ) — 944,960 Second Lien Notes, secured, due July 2024 586,770 — 193,237 780,007 6.875% Notes, unsecured, due April 2022 150,439 (10,077 ) — 140,362 7.125% Notes, unsecured, due April 2025 225,000 (12,294 ) — 212,706 Total debt, net $ 1,928,528 $ (43,730 ) $ 193,237 $ 2,078,035 (1) Includes PIK interest on the Term Loan and Second Lien Notes of $1.1 million and $14.7 million, respectively. (2) Deferred financing costs related to the Revolving Credit Facility are reported within Other assets on the condensed consolidated balance sheet, rather than as a reduction of the carrying amount of long-term debt. (3) As a result of the Bankruptcy Petitions filed on May 14, 2020, subsequent to March 31, 2020, the Company wrote off approximately $144.0 million of unamortized net deferred financing costs, discounts, and premium, net. December 31, 2019 Principal repayment obligation (1) Unamortized DFC and discounts (2) Unamortized premium Carrying value Credit Facility, secured, due January 2022 $ 64,700 $ — $ — $ 64,700 Term Loan, secured, due April 2024 968,756 (22,498 ) — 946,258 Second Lien Notes, secured, due July 2024 583,853 — 203,883 787,736 6.875% Notes, unsecured, due April 2022 150,439 (11,146 ) — 139,293 7.125% Notes, unsecured, due April 2025 225,000 (12,777 ) — 212,223 Total debt, net $ 1,992,748 $ (46,421 ) $ 203,883 $ 2,150,210 (1) Includes PIK interest on the Term Loan and Second Lien Notes of $1.1 million and $11.8 million, respectively. (2) Deferred financing costs related to the Revolving Credit Facility are reported within Other assets on the condensed consolidated balance sheet, rather than as a reduction of the carrying amount of long-term debt.

Share Based Compensation (Table

Share Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2020
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Valuation and Expense Information	Valuation and Expense Information For the Three Months Ended March 31, 2020 2019 Total cost of share-based payment plans $ 1,231 $ 1,127 Amounts capitalized in oil and gas properties and equipment $ 51 $ 286 Amounts charged against income, before income tax benefit $ 1,180 $ 841 Amount of related income tax benefit recognized in income before valuation allowance $ 248 $ 177

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2020
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Summary of Open Commodity Derivative Contracts	At March 31, 2020, Company had open commodity derivative contracts to manage commodity price risks as presented in the table below. Type/Year Index Total Volumes Weighted Average Price per Unit Fair Value - March 31, 2020 (in millions) Asset (Liability) Crude oil fixed price swaps (Bbl) ($/Bbl) 2020 (April through September) NYMEX-WTI 0.2 $ 59.79 $ 7,960 Type/Year Index Total Volumes Weighted Average Floor Price ($/MMBTU) Weighted Average Ceiling Price ($/MMBTU) Fair Value - March 31, 2020 (in millions) Asset (Liability) Natural gas collars (Mmbtu) 2020 (April through December) NYMEX 57.4 $ 2.39 $ 2.87 $ 26,255 2021 NYMEX 7.2 $ 2.46 $ 3.05 $ (180 ) Natural gas deferred premium put options (1) (Mmbtu) 2020 (April through December) NYMEX 13.4 $ 2.42 N/A $ 5,360 (1) The natural gas deferred premium put options include an average deferred premium cost of $0.13.
Summary of Pre-tax Realized and Unrealized Gain (Loss) Recognized Related to Derivative Instruments	The following table summarizes the pre-tax realized and unrealized gain (loss) the Company recognized related to its derivative instruments in the condensed consolidated statements of operations for the three months ended March 31, 2020 and 2019: For the Three Months Ended March 31, Commodity Derivatives (in thousands): 2020 2019 Realized gain on commodity derivatives - natural gas (1) $ 11,452 $ (81,203 ) Realized gain on commodity derivatives - oil (1) 4,897 2,572 Unrealized gain on commodity derivatives (1) 27,945 14,292 Total gain (loss) on commodity derivatives $ 44,294 $ (64,339 ) (1) Included in Gain (Loss) on commodity derivatives in the condensed consolidated statements of operations.

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2020
Fair Value Disclosures [Abstract]
Assets and Liabilities Measured at Fair Value	Level 1 Level 2 Level 3 Total Assets: Current derivative asset $ — $ 44,261 $ — $ 44,261 Total derivative instruments $ — $ 44,261 $ — $ 44,261 Liabilities: Current derivative liability $ — $ 4,866 $ — $ 4,866 Total derivative instruments $ — $ 4,866 $ — $ 4,866
Carrying Values and Estimated Fair Values of Financial Instruments	March 31, 2020 December 31, 2019 Principal Estimated Principal Estimated repayment obligation Fair Value repayment obligation Fair Value Credit Facility, secured, due January 2022 $ - $ - $ 64,700 $ 64,700 Term Loan, secured, due April 2024 966,319 396,191 968,756 566,723 Second Lien Notes, secured, due July 2024 586,770 44,008 583,853 86,994 6.875% Notes, unsecured, due April 2022, issued 2017 150,439 16,172 150,439 18,805 7.125% Notes, unsecured, due April 2025, issued 2017 225,000 16,598 225,000 15,750 Total debt $ 1,928,528 $ 472,969 $ 1,992,748 $ 752,972

Voluntary Reorganization Unde_2

Voluntary Reorganization Under Chapter 11 (Details) - USD ($)	Dec. 21, 2018	Apr. 12, 2017	Mar. 31, 2020	Dec. 31, 2019
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Petition date			May 14, 2020
Term loan			$ 2,078,035,000	$ 2,150,210,000
Professional, advisory, consulting, and legal fees			$ 2,600,000
DIP Credit Facility [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Line of credit facility, description			In connection with the RSA and the Chapter 11 Cases, Ultra Resources entered into a senior secured super priority debtor-in-possession credit agreement (the “DIP Credit Agreement”), dated as of May 19, 2020, among Ultra Resources, as borrower, UPE and the other Filing Subsidiaries, as guarantors, WTNA, as administrative agent and collateral agent, and the lenders party thereto. The DIP Credit Agreement provides for a multi-draw term loan credit facility in an aggregate principal amount of $25 million (the “DIP Facility”). Ultra intends to use proceeds of the DIP Facility, among other things: (1) to pay interest, fees, costs and expenses related to the loans thereunder, (2) to pay the fees, costs and expenses of the estate professionals retained in the Chapter 11 Cases and approved by the Court, (3) to pay certain fees, costs, disbursements and expenses of the Consenting Term Lenders, (4) to make all permitted payments of costs of administration of the Chapter 11 Cases, (5) to pay such prepetition expenses as are consented to in writing by the Required Lenders (as defined in the DIP Credit Agreement) and approved by the Court, (6) to satisfy any adequate protection obligations owing under the DIP Orders (as defined in the RSA); and (7) for general corporate and working capital purposes of the Debtors during the Chapter 11 Cases
Line of credit facility, initiation date			May 19, 2020
Line of credit facility, principal amount			$ 25,000,000
Restructuring Support Agreement [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Debtor-in possession financing, borrowings outstanding			25,000,000
Capital investments			85,000,000
Prepayment penality			0
Line of credit facility, commitment amount			60,000,000
Restructuring Support Agreement [Member] | Maximum
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Term loan			5,000,000
Restructuring Support Agreement [Member] | Revolving Credit Facility
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Line of credit facility, maximum borrowing capacity			100,000,000
Restructuring Support Agreement [Member] | Revolving Credit Facility | Maximum
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Letters of credit outstanding, amount			$ 15,000,000
Senior Secured Second Lien Notes due July 2024
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Senior notes due date	Jul. 31, 2024
Debt issued, interest rate	9.00%
Debt issued, paid in kind interest rate percentage	2.00%
6.875% Senior Notes due April 2022
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Senior notes due date		Apr. 30, 2022
Stated interest rate		6.875%
7.125% Senior Unsecured Notes due April 2025
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Senior notes due date		Apr. 30, 2025
Stated interest rate		7.125%
Credit Agreement | Restructuring Support Agreement [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Aggregate loan principal outstanding percentage			100.00%
Term Loan [Member] | Restructuring Support Agreement [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Aggregate loan principal outstanding percentage			85.00%
Second Lien Notes Indenture [Member] | Restructuring Support Agreement [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Aggregate loan principal outstanding percentage			67.00%

Revenue Recognition - Additiona

Revenue Recognition - Additional Information (Details)	3 Months Ended
	Mar. 31, 2020
Revenue From Contract With Customer [Abstract]
Revenue, practical expedient in ASC 606-10-50-14	true
Revenue, practical expedient in ASC 606-10-50-14(a), description	For our product sales that have a contract term greater than one year, we have utilized the practical expedient in ASC 606-10-50-14(a) which states that the Company is not required to disclose the transaction price allocated to remaining performance obligations if the variable consideration is allocated entirely to a wholly unsatisfied performance obligation. Under these sales contracts, each unit of product generally represents a separate performance obligation; therefore, future volumes are wholly unsatisfied, and disclosure of the transaction price allocated to remaining performance obligations is not required.

Other Current Assets - Schedule

Other Current Assets - Schedule of Other Current Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Other current assets	$ 7,911	$ 10,746
Deposits And Retainers
Other current assets	526	651
Prepaids And Others
Other current assets	1,442	1,087
Crude Oil
Other current assets	958	1,032
Pipe And Production Equipment
Other current assets	$ 4,985	$ 7,976

Other Current Assets - Addition

Other Current Assets - Additional Information (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020USD ($)
Other Current Assets [Abstract]
Write down of pipe and production equipment	$ 3,336

Oil and Gas Properties - Schedu

Oil and Gas Properties - Schedule of Oil and Gas Properties (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Proven properties:
Acquisition, equipment, exploration, drilling and abandonment costs	$ 11,820,726	$ 11,820,392
Less: Accumulated depletion, depreciation, amortization, and impairment	(10,553,983)	(10,267,973)
Total Oil and gas properties, net	$ 1,266,743	$ 1,552,419

Oil and Gas Properties - Additi

Oil and Gas Properties - Additional Information (Details) - 3 months ended Mar. 31, 2020 $ in Thousands	USD ($)	Total	$ / Mcfe	$ / bbl
Results Of Operations For Oil And Gas Producing Activities By Geographic Area [Line Items]
Crude oil and natural gas reserves discounted rate		10.00%
Base price of oil and gas			2.07	55.35
Ceiling test write-down	$ 242,603
Natural Gas
Results Of Operations For Oil And Gas Producing Activities By Geographic Area [Line Items]
Percentage of decrease in price of natural gas		15.00%
Maximum | Oil Reserves
Results Of Operations For Oil And Gas Producing Activities By Geographic Area [Line Items]
Percentage of decrease in price of natural gas		1.00%

Earnings Per Share - Additional

Earnings Per Share - Additional Information (Details) - Ultra Resources, Inc. - Exchange Agreement	Mar. 31, 2020d$ / shares
Volume-weighted average price of the Common Shares for warrants exercise | $ / shares | $ / shares	$ 2.50
Number of consecutive trading days | d	30

Earnings Per Share - Reconcilia

Earnings Per Share - Reconciliation of Components of Basic and Diluted Net Income Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Earnings Per Share [Abstract]
Net income (loss)	$ (217,605)	$ 40,674
Weighted average common shares outstanding - basic	198,333	197,383
Effect of dilutive instruments		418
Weighted average common shares outstanding - diluted	198,333	197,801
Basic	$ (1.10)	$ 0.21
Diluted	$ (1.10)	$ 0.21

Debt - Summary of Debt Instrume

Debt - Summary of Debt Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Principal repayment obligation	$ 1,928,528	$ 1,992,748
Unamortized DFC and discounts	(43,730)	(46,421)
Unamortized premium	193,237	203,883
Carrying value	2,078,035	2,150,210
Credit Facility, Secured Due January 2022
Debt Instrument [Line Items]
Principal repayment obligation		64,700
Carrying value		64,700
Term Loan, Secured, Due April 2024
Debt Instrument [Line Items]
Principal repayment obligation	966,319	968,756
Unamortized DFC and discounts	(21,359)	(22,498)
Carrying value	944,960	946,258
Second Lien Notes, Secured, Due July 2024
Debt Instrument [Line Items]
Principal repayment obligation	586,770	583,853
Unamortized premium	193,237	203,883
Carrying value	780,007	787,736
6.875% Unsecured Notes Due April 2022
Debt Instrument [Line Items]
Principal repayment obligation	150,439	150,439
Unamortized DFC and discounts	(10,077)	(11,146)
Carrying value	140,362	139,293
7.125% Unsecured Notes Due April 2025
Debt Instrument [Line Items]
Principal repayment obligation	225,000	225,000
Unamortized DFC and discounts	(12,294)	(12,777)
Carrying value	$ 212,706	$ 212,223

Debt - Summary of Debt Instru_2

Debt - Summary of Debt Instruments (Parenthetical) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Debt Instrument [Line Items]
Payable-in-kind (“PIK”) interest payable	$ 2,917	$ 3,183
Unamortized deferred financing costs	$ 144,000
Credit Facility, Secured Due January 2022
Debt Instrument [Line Items]
Maturity date	Jan. 12, 2022		Jan. 12, 2022
Term Loan, Secured, Due April 2024
Debt Instrument [Line Items]
Maturity date	Apr. 12, 2024		Apr. 12, 2024
Payable-in-kind (“PIK”) interest payable	$ 1,100		$ 1,100
Second Lien Notes, Secured, Due July 2024
Debt Instrument [Line Items]
Maturity date	Jul. 12, 2024		Jul. 12, 2024
Payable-in-kind (“PIK”) interest payable	$ 14,700		$ 11,800
6.875% Unsecured Notes Due April 2022
Debt Instrument [Line Items]
Maturity date	Apr. 15, 2022		Apr. 15, 2022
Stated interest rate	6.875%		6.875%
7.125% Unsecured Notes Due April 2025
Debt Instrument [Line Items]
Maturity date	Apr. 15, 2025		Apr. 15, 2025
Stated interest rate	7.125%		7.125%

Debt - Ultra Resources, Inc. -

Debt - Ultra Resources, Inc. - Credit Agreement - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Apr. 01, 2020	Feb. 29, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Long-term debt, gross	$ 1,928,528			$ 1,992,748
Ultra Resources, Inc. | Revolving Credit Facility
Debt Instrument [Line Items]
Long-term debt, gross	0
Ultra Resources, Inc. | Letter of Credit
Debt Instrument [Line Items]
Long-term debt, gross	10,200
Ultra Resources, Inc. | Credit Agreement
Debt Instrument [Line Items]
Credit facility, current borrowing capacity	100,000
Ultra Resources, Inc. | Credit Agreement Secured Due January Twenty Twenty Two
Debt Instrument [Line Items]
Credit facility, current borrowing capacity	200,000		$ 120,000
Anti-cash hoarding provision	$ 15,000
Ultra Resources, Inc. | Credit Agreement Secured Due January Twenty Twenty Two | Subsequent Event
Debt Instrument [Line Items]
Credit facility, current borrowing capacity		$ 100,000
Ultra Resources, Inc. | Credit Agreement Secured Due January Twenty Twenty Two | Subsequent Event | Bank Of Montreal
Debt Instrument [Line Items]
Borrowing Base		1,075,000
Ultra Resources, Inc. | Credit Agreement Secured Due January Twenty Twenty Two | Subsequent Event | Barclays Bank PLC
Debt Instrument [Line Items]
Long-term debt, gross		$ 100,000
Ultra Resources, Inc. | Credit Agreement Secured Due January Twenty Twenty Two | Revolving Credit Facility | Bank Of Montreal
Debt Instrument [Line Items]
Minimum required interest coverage ratio, as percentage	0.04%
Interest rate description	The Revolving Credit Facility bears interest either at a rate equal to (a) a customary London interbank offered rate plus an applicable margin that varies from 250 to 350 basis points or (b) the base rate plus an applicable margin that varies from 150 to 250 basis points based upon the borrowing base utilization grid. The applicable margin increases by 25 basis points in the event the Company’s consolidated net leverage ratio, as defined, exceeds 4.00 to 1.00.
Maturity date	Jan. 12, 2022
Ultra Resources, Inc. | Credit Agreement Secured Due January Twenty Twenty Two | Revolving Credit Facility | Bank Of Montreal | LIBOR | Minimum [Member]
Debt Instrument [Line Items]
Variable rate	2.50%
Ultra Resources, Inc. | Credit Agreement Secured Due January Twenty Twenty Two | Revolving Credit Facility | Bank Of Montreal | LIBOR | Maximum
Debt Instrument [Line Items]
Variable rate	3.50%
Ultra Resources, Inc. | Credit Agreement Secured Due January Twenty Twenty Two | Revolving Credit Facility | Bank Of Montreal | Base Rate | Minimum [Member]
Debt Instrument [Line Items]
Variable rate	1.50%
Ultra Resources, Inc. | Credit Agreement Secured Due January Twenty Twenty Two | Revolving Credit Facility | Bank Of Montreal | Base Rate | Maximum
Debt Instrument [Line Items]
Variable rate	2.50%
Ultra Resources, Inc. | Credit Agreement Secured Due January Twenty Twenty Two | Revolving Credit Facility | Bank Of Montreal | Net Leverage Ratio
Debt Instrument [Line Items]
Variable rate	0.25%
Ultra Resources, Inc. | Credit Agreement Secured Due January Twenty Twenty Two | Revolving Credit Facility | Bank Of Montreal | Commitment Fee
Debt Instrument [Line Items]
Variable rate	0.50%
Ultra Resources, Inc. | Credit Agreement Secured Due January Twenty Twenty Two | Letter of Credit | Bank Of Montreal
Debt Instrument [Line Items]
Amount of commitments available for the issuance of letters of credit	$ 35,000

Debt - Ultra Resources, Inc. _2

Debt - Ultra Resources, Inc. - Term Loan - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Debt Instrument [Line Items]
Principal repayment obligation	$ 1,928,528		$ 1,992,748
Payable-in-kind (“PIK”) interest payable	2,917	$ 3,183
Ultra Resources, Inc. | Barclays Bank PLC | Term Loan Secured Due 2024
Debt Instrument [Line Items]
Principal repayment obligation	966,300
Payable-in-kind (“PIK”) interest payable	$ 1,100
Amortization of term loan, quarterly basis	0.25%
Maturity date	Apr. 12, 2024
Ultra Resources, Inc. | Barclays Bank PLC | Term Loan Secured Due 2024 | LIBOR
Debt Instrument [Line Items]
Variable rate	4.00%
Ultra Resources, Inc. | Barclays Bank PLC | Term Loan Secured Due 2024 | Base Rate
Debt Instrument [Line Items]
Variable rate	3.00%
Ultra Resources, Inc. | Barclays Bank PLC | Term Loan Secured Due 2024 | Base Rate | Payment in Kind (PIK) Note
Debt Instrument [Line Items]
Variable rate	0.25%

Debt - Ultra Resources, Inc. _3

Debt - Ultra Resources, Inc. - Second Lien Notes - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Debt Instrument [Line Items]
Payable-in-kind (“PIK”) interest payable	$ 2,917	$ 3,183
Second Lien Notes, Secured, Due 2024 | Ultra Resources, Inc. | Exchange Agreement
Debt Instrument [Line Items]
Aggregate principal amount of debt issued on exchange	586,800
Payable-in-kind (“PIK”) interest payable	$ 14,700
Debt issued, interest rate	9.00%
Debt issued, paid in kind interest rate percentage	2.00%
Interest payment terms	The cash interest payment dates for the Second Lien Notes were January 15 and July 15 of each year, commencing in July 2019.
Maturity date	Jul. 12, 2024

Debt - Ultra Resources, Inc. _4

Debt - Ultra Resources, Inc. - Unsecured Notes - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Aggregate principal amounts outstanding	$ 1,928,528	$ 1,992,748
Ultra Resources, Inc. | 6.875% Senior, Unsecured Notes Due 2022
Debt Instrument [Line Items]
Aggregate principal amounts outstanding	$ 150,400
Interest payment terms	Prior to default, the 2022 Notes were scheduled to mature on April 15, 2022. Interest on the 2022 Notes accrued at an annual rate of 6.875% and interest payment dates for the 2022 Notes were April 15 and October 15 of each year.
Stated interest rate	6.875%
Ultra Resources, Inc. | 7.125% Senior, Unsecured Notes Due 2025
Debt Instrument [Line Items]
Aggregate principal amounts outstanding	$ 225,000
Interest payment terms	The 2025 Notes were scheduled to mature on April 15, 2025. Interest on the 2025 Notes accrued at an annual rate of 7.125% and interest payment dates for the 2025 Notes are April 15 and October 15 of each year. Interest was to be paid on the Unsecured Notes from the issue date until maturity.
Stated interest rate	7.125%

Debt - Ultra Resources, Inc. _5

Debt - Ultra Resources, Inc. - DIP Credit Agreement - Additional Information (Details) - Ultra Resources, Inc. - DIP Credit Agreement $ in Millions	3 Months Ended
	Mar. 31, 2020USD ($)
Debt Instrument [Line Items]
LIBOR floor	1.00%
Unutilized fees	0.50%
Upfront fees	$ 0.4
LIBOR
Debt Instrument [Line Items]
Variable rate	1.00%

Share Based Compensation - Sche

Share Based Compensation - Schedule of Valuation and Expense Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Share Based Compensation Allocation And Classification In Financial Statements [Abstract]
Total cost of share-based payment plans	$ 1,231	$ 1,127
Amounts capitalized in oil and gas properties and equipment	51	286
Amounts charged against income, before income tax benefit	1,180	841
Amount of related income tax benefit recognized in income before valuation allowance	$ 248	$ 177

Share Based Compensation - Addi

Share Based Compensation - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Apr. 12, 2017
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total cost of share based payment plans	$ 1,180	$ 841
Long Term Incentive Award
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Performance period	3 years
Performance Shares | Stock Incentive Plan 2017
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percent of equity reserved for directors, officers and other employees			7.50%
Stock-Based Compensation Cost
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total cost of share based payment plans		$ 800
Stock-Based Compensation Cost | General And Administrative Expense
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total cost of share based payment plans	$ 1,200

Income Taxes - Additional Infor

Income Taxes - Additional Information (Details)	3 Months Ended
	Mar. 31, 2020
Income Tax Disclosure [Abstract]
Statutory tax rate	21.00%

Derivative Financial Instrume_3

Derivative Financial Instruments - Additional Information (Details) - USD ($) $ in Millions	1 Months Ended		3 Months Ended
	May 31, 2020	Apr. 30, 2020	Mar. 31, 2020	Mar. 31, 2021
Derivative [Line Items]
Proceeds from monetization of derivative contracts			$ 12.8
Subsequent Event
Derivative [Line Items]
Proceeds from monetization of derivative contracts	$ 6.5	$ 8.3
Revolving Credit Facility
Derivative [Line Items]
Maximum hedge percentage of scheduled production requirement per revolving credit facility			25.00%
Revolving Credit Facility | Natural Gas Sales
Derivative [Line Items]
Revolving credit facility of natural gas production for the immediately succeeding twelve-month period			33.00%
Revolving credit facility of natural gas production for the immediate succeeding six-month period thereafter			25.00%
Revolving Credit Facility | Scenario Forecast
Derivative [Line Items]
Maximum hedge percentage of scheduled production requirement per revolving credit facility				15.00%

Derivative Financial Instrume_4

Derivative Financial Instruments - Summary of Open Commodity Derivative Contracts (Details) $ in Thousands, bbl in Millions, MMBTU in Millions	3 Months Ended
	Mar. 31, 2020USD ($)MMBTU$ / bbl$ / MMBTUbbl	Dec. 31, 2019USD ($)
Derivative [Line Items]
Fair Value Asset	$ 44,261	$ 32,100
Fair Value (Liability)	$ (4,866)	$ (20,692)
Commodity Derivative Contract Fixed Price Swaps | Crude Oil
Derivative [Line Items]
Type	Crude oil fixed price swaps
Commodity Derivative Contract Fixed Price Swaps One | Crude Oil
Derivative [Line Items]
Year	2020 (April through September)
Index	NYMEX-WTI
Total Volumes | bbl	0.2
Weighted Average Price per Unit | $ / bbl	59.79
Fair Value Asset	$ 7,960
Commodity Derivative Contract Collars | Natural Gas
Derivative [Line Items]
Type	Natural gas collars
Commodity Derivative Contract Collars One | Natural Gas
Derivative [Line Items]
Year	2020 (April through December)
Index	NYMEX
Total Volumes | MMBTU	57.4
Weighted Average Floor Price | $ / MMBTU	2.39
Weighted Average Ceiling Price | $ / MMBTU	2.87
Fair Value Asset	$ 26,255
Commodity Derivative Contract Collars Two | Natural Gas
Derivative [Line Items]
Year	2021
Index	NYMEX
Total Volumes | MMBTU	7.2
Weighted Average Floor Price | $ / MMBTU	2.46
Weighted Average Ceiling Price | $ / MMBTU	3.05
Fair Value (Liability)	$ (180)
Commodity Derivative Contract Deferred Premium Put Options | Natural Gas
Derivative [Line Items]
Type	Natural gas deferred premium put options
Commodity Derivative Contract Put Options One | Natural Gas
Derivative [Line Items]
Year	2020 (April through December)
Index	NYMEX
Total Volumes | MMBTU	13.4
Weighted Average Floor Price | $ / MMBTU	2.42
Fair Value Asset	$ 5,360

Derivative Financial Instrume_5

Derivative Financial Instruments - Summary of Open Commodity Derivative Contracts (Parenthetical) (Details)	Mar. 31, 2020$ / MMBTU
Commodity Derivative Contract Deferred Premium Put Options | Natural Gas
Derivative [Line Items]
Average deferred premium cost	0.13

Derivative Financial Instrume_6

Derivative Financial Instruments - Summary of Pre-tax Realized and Unrealized Gain (Loss) Recognized Related to Derivative Instruments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Derivative [Line Items]
Unrealized gain on commodity derivatives	$ 27,945	$ 14,292
Total gain (loss) on commodity derivatives	44,294	(64,339)
Commodity Derivative Contract
Derivative [Line Items]
Unrealized gain on commodity derivatives	27,945	14,292
Total gain (loss) on commodity derivatives	44,294	(64,339)
Commodity Derivative Contract | Natural Gas
Derivative [Line Items]
Realized gain (loss) on commodity derivatives	11,452	(81,203)
Commodity Derivative Contract | Oil Reserves
Derivative [Line Items]
Realized gain (loss) on commodity derivatives	$ 4,897	$ 2,572

Fair Value Measurements - Asset

Fair Value Measurements - Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Current derivative asset	$ 44,261	$ 32,100
Total derivative instruments	44,261
Current derivative liability	4,866	$ 20,692
Total derivative instruments	4,866
Level 2
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Current derivative asset	44,261
Total derivative instruments	44,261
Current derivative liability	4,866
Total derivative instruments	$ 4,866

Fair Value Measurements - Carry

Fair Value Measurements - Carrying Values and Estimated Fair Values of Financial Instruments (Details) - Level 2 - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Carrying Amount
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Total debt	$ 1,928,528	$ 1,992,748
Estimated Fair Value
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Total debt	472,969	752,972
Credit Facility, Secured Due January 2022 | Carrying Amount
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Credit facility		64,700
Credit Facility, Secured Due January 2022 | Estimated Fair Value
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Credit facility		64,700
Term Loan, Secured, Due April 2024 | Carrying Amount
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Term loan	966,319	968,756
Term Loan, Secured, Due April 2024 | Estimated Fair Value
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Term loan	396,191	566,723
Second Lien Notes, Secured, Due July 2024 | Carrying Amount
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Notes payable	586,770	583,853
Second Lien Notes, Secured, Due July 2024 | Estimated Fair Value
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Notes payable	44,008	86,994
6.875% Unsecured Notes Due April 2022 | Carrying Amount
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Notes payable	150,439	150,439
6.875% Unsecured Notes Due April 2022 | Estimated Fair Value
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Notes payable	16,172	18,805
7.125% Unsecured Notes Due April 2025 | Carrying Amount
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Notes payable	225,000	225,000
7.125% Unsecured Notes Due April 2025 | Estimated Fair Value
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Notes payable	$ 16,598	$ 15,750

Fair Value Measurements - Car_2

Fair Value Measurements - Carrying Values and Estimated Fair Values of Financial Instruments (Parenthetical) (Details)	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Credit Facility, Secured Due January 2022
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Debt instruments maturity month and year	2022-01
Term Loan, Secured, Due April 2024
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Debt instruments maturity month and year	2024-04
Second Lien Notes, Secured, Due July 2024
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Debt instruments maturity month and year	2024-07
6.875% Unsecured Notes Due April 2022
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Debt instruments maturity month and year	2022-04
Stated interest rate	6.875%	6.875%
Issue date	2017
7.125% Unsecured Notes Due April 2025
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Debt instruments maturity month and year	2025-04
Stated interest rate	7.125%	7.125%
Issue date	2017

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Millions	Oct. 06, 2017	Dec. 31, 2018	Dec. 31, 2019	Mar. 31, 2020	Apr. 14, 2017
Loss Contingencies [Line Items]
Claims settled	$ 399
Bankruptcy claims, undistributed amount returned	1.3
Bankruptcy claims amount of claims settled, make-whole fees	223.8
Bankruptcy claims amount of claims settled, postpetition interest	$ 175.2
Claims subject to Appellate Court decision				$ 240
Settlement Agreements
Loss Contingencies [Line Items]
Settlement agreement, amount claimants agreed to pay		$ 16.4	$ 13.5
Indebtedness Claims | Notes holders
Loss Contingencies [Line Items]
Claim reserve account after emergence from bankruptcy					$ 400