Mammoth Energy Services, Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Narrative (Details)

Commitments and Contingencies - Narrative (Details)			1 Months Ended				3 Months Ended
Commitments and Contingencies - Narrative (Details)	Nov. 13, 2020 USD ($)	Mar. 25, 2020 USD ($)	Oct. 31, 2019 lawsuit	Sep. 30, 2019 lawsuit	Aug. 31, 2019 lawsuit	Jun. 30, 2019 lawsuit	Mar. 31, 2021 USD ($) lawsuit	Mar. 31, 2020 USD ($)	Apr. 01, 2021 USD ($)	Mar. 22, 2021 USD ($)	Dec. 31, 2020 USD ($)	Jan. 21, 2020 USD ($)
Other Commitments [Line Items]
Insurance deductible							$ 300,000				$ 100,000
Insurance aggregate stop loss							5,400,000				5,400,000
Workers' compensation liability, current							1,799,000				1,941,000
Workers compensation and auto claims insurance, directors and officers liability							1,000,000.0				1,000,000.0
Workers compensation and auto claims insurance, directors and officers liability aggregate limit							10,000,000.0				10,000,000.0
Workers compensation and auto claims insurance, aggregate stop loss per claim basis							200,000
Workers compensation and auto claims insurance, aggregate stop loss per calendar year							5,800,000
Insurance reserves							1,200,000				1,300,000
Warranty accrual							0				0
Product warranty expense							0	$ 0
Commitments and contingencies
Recovery amount in undisputed claims		$ 61,700,000
Revenues							66,804,000	97,383,000
Bad debt expense							10,125,000	55,000
Receivables from related parties, net							$ 33,115,000				28,461,000
Maximum annual contributions per employee, percent							92.00%
Employer matching contribution, percent of match							3.00%
Employer discretionary contribution amount							$ 500,000	$ 400,000
Subsequent Event
Other Commitments [Line Items]
Contractual obligation									$ 600,000
Gulfport \| Other Current Assets - Related Party
Other Commitments [Line Items]
Shares subscribed but unissued, subscriptions receivable							2,200,000
Outstanding Bid Bond
Other Commitments [Line Items]
Commitments and contingencies							100,000				1,000,000.0
Performance And Payment Bond
Other Commitments [Line Items]
Commitments and contingencies							19,400,000				18,100,000
Estimated cost to complete the project							$ 2,300,000
Puerto Rico Municipalities, Failure To Pay Municipal License And Construction Excise Taxes
Other Commitments [Line Items]
Number of new claims \| lawsuit							10
Western District Of Oklahoma, Federal Securities Lawsuits
Other Commitments [Line Items]
Number of new claims \| lawsuit				2	3	3
Number of claims dismissed \| lawsuit			2
September 2019 Derivative Lawsuits
Other Commitments [Line Items]
Number of new claims \| lawsuit				4
District of Delaware, Federal Securities Lawsuits
Other Commitments [Line Items]
Number of new claims \| lawsuit				2
Puerto Rico Electric Power Authority (PREPA)
Other Commitments [Line Items]
Accounts receivable from related parties							$ 227,000,000.0
Interest charged on accounts receivable							82,900,000				74,300,000
Mastec Renewables Puerto Rico, LLC
Other Commitments [Line Items]
Contract amount												$ 500,000,000
Gulfport
Other Commitments [Line Items]
Interest charged on accounts receivable	$ 3,300,000										1,400,000
Due from related parties	46,900,000										19,400,000
Litigation liability	1,800,000										$ 1,800,000
Unliquidated damages										$ 46,400,000
Revenues							(27,100,000)
Bad debt expense	$ 10,000,000.0						(3,800,000)
Receivables from related parties, net							33,000,000.0
Gulfport \| Pre-Petition Products And Services
Other Commitments [Line Items]
Receivables from related parties, net							6,100,000
Gulfport \| Pre-Petition Receivables
Other Commitments [Line Items]
Receivables from related parties, net							500,000
Gulfport \| Stingray Pressure Pumping
Other Commitments [Line Items]
Interest charged on accounts receivable							1,300,000
Due from related parties							32,700,000
Unliquidated damages							37,900,000
Bad debt expense							$ 2,900,000