Summary of Significant Accounting Policies - Additional Information (Details)	3 Months Ended		12 Months Ended
	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2019 USD ($) segment	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Summary Of Significant Accounting Policies [Line Items]
Allowance for doubtful accounts receivable	$ 0	$ 2,800,000	$ 0	$ 2,800,000
Undeveloped leasehold costs	2,500,000,000		2,500,000,000
Undeveloped leasehold costs to expire in 2020	183,400,000		183,400,000
Undeveloped leasehold expense	$ 62,800,000	$ 127,000,000.0
Depreciation expense			18,900,000	15,500,000	$ 11,500,000
Impairment of equity investments			0	0	0
Contribution by company			$ 3,900,000	$ 3,800,000	$ 2,800,000
Number of segments | segment			1
Minimum
Summary Of Significant Accounting Policies [Line Items]
Property and equipment, estimated useful lives			2 years
Maximum
Summary Of Significant Accounting Policies [Line Items]
Property and equipment, estimated useful lives			35 years
SPS
Summary Of Significant Accounting Policies [Line Items]
Equity method investment, ownership percentage	42.50%		42.50%
Parsley LLC | Parent | Pacesetter Drilling, LLC
Summary Of Significant Accounting Policies [Line Items]
Percentage of ownership interest, parent	63.00%		63.00%