Related Party Transactions (Details) - USD ($)			1 Months Ended		3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 24, 2019	Jan. 11, 2018	Jun. 30, 2020	Apr. 30, 2020	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019	Dec. 31, 2018
Related Party Transaction [Line Items]
Taxes payable			$ 51,100,000		$ 51,100,000		$ 51,100,000		$ 50,300,000
Payables to related parties			2,878,000		2,878,000		2,878,000		1,329,000
Payable pursuant to tax receivable agreements, related parties			20,579,000		20,579,000		20,579,000		23,797,000
Revenue from related parties					0	$ 4,825,000	0	$ 11,142,000
Interest income, related party					45,000	706,000	232,000	706,000
Prepaid expense and other current assets			25,500,000		25,500,000		25,500,000		34,827,000
Cost of goods sold					89,518,000	426,444,000	482,234,000	855,743,000
Liberty Resources LLC | Affiliated Entity | Hydraulic Fracturing Services
Related Party Transaction [Line Items]
Revenue from related parties					0	4,800,000	0	11,100,000
Accounts receivable, related parties			1,300,000		1,300,000		1,300,000		7,100,000
Note receivable—related party, less current portion	$ 15,600,000
Due from related parties			0		0		0		2,500,000
Receivable with imputed interest, effective yield (interest rate)	13.00%
Interest income, related party					0		200,000
Accrued interest receivable, related party			0		0		0		0
Riverstone | Affiliated Entity | Service Fees
Related Party Transaction [Line Items]
Accrued liabilities—related party		$ 2,000,000.0								$ 2,300,000
Expenses from transactions with related party							0	0
Interest and settlement expense		300,000
Proppant Express Investments, LLC | Affiliated Entity | Administrative Support and Purchase and Lease Proppant Logistics Equipment
Related Party Transaction [Line Items]
Leases from related party					1,900,000	2,400,000	4,500,000	4,900,000
Due to related parties			700,000		700,000		700,000		800,000
Reduction in lease payments			700,000	$ 1,100,000
Increase in operating lease liability							3,000,000.0
Increase in operating right-of-use asset							3,000,000.0
R/C IV Non-U.S. LOS Corp | Tax Receivable Agreement | Affiliated Entity
Related Party Transaction [Line Items]
Taxes payable		$ 2,900,000
Shares of Class B Common Stock | R/C IV Non-U.S. LOS Corp | Tax Receivable Agreement | Affiliated Entity
Related Party Transaction [Line Items]
Taxes payable									$ 22,300,000
Stock redeemed (in shares)									9,605,786
Shares of Class B Common Stock | Common Stock | Tax Receivable Agreement
Related Party Transaction [Line Items]
Taxes payable			$ 2,600,000		$ 2,600,000	$ 5,100,000	$ 2,600,000	$ 5,100,000
IPO | Shares of Class A Common Stock | Common Stock | Riverstone | Affiliated Entity | Service Fees
Related Party Transaction [Line Items]
Number of shares issued (shares)		117,647