Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Oil and natural gas properties
Evaluated (subject to amortization)	$ 4,557,265	$ 3,780,236
Total unproved and unevaluated	1,126,992	1,199,511
Total oil and natural gas properties	5,684,257	4,979,747
Accumulated depletion	(2,603,681)	(2,273,010)
Net oil and natural gas properties	3,080,576	2,706,737
Midstream Properties [Abstract]
Midstream properties	643,903	428,025
Accumulated depreciation	2,655,586	2,306,949
Other property and equipment
Other property and equipment	27,021	22,041
Accumulated depreciation	(13,432)	(9,588)
Net other property and equipment	13,589	12,453
Net property and equipment	3,699,595	3,122,864
Midstream equipment and facilities
Midstream Properties [Abstract]
Midstream properties	643,903	428,025
Accumulated depreciation	38,473	24,351
Net midstream properties	605,430	403,674
Furniture, fixtures and other equipment
Other property and equipment
Other property and equipment	9,170	7,047
Software
Other property and equipment
Other property and equipment	8,099	8,039
Leasehold improvements
Other property and equipment
Other property and equipment	$ 9,752	$ 6,955