Oil and Natural Gas Properties Acquisitions - 2018 Acquisitions (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Business combination, consideration transferred	$ 44,000	$ 149,900
Acquisition-related costs	100	200
Issuance of common units, net of offering costs	(43)	40,537	$ 32,458
Payments to noncontrolling interests	0	1,706	$ 0
East Texas
Business Acquisition [Line Items]
Asset acquisition payments to acquire oil mineral and royalty interests	$ 31,600	58,200
2018 Acquisitions
Business Acquisition [Line Items]
Asset acquisition payments to acquire oil mineral and royalty interests		57,600
Issuance of common units, net of offering costs		600
Payments to noncontrolling interests		$ 1,700

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No definition available.

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This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Monetary value of the issuance of new units of limited partnership interest in a public offering.

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Amount of cash outflow to a noncontrolling interest. Includes, but not limited to, reduction of noncontrolling interest ownership. Excludes dividends paid to the noncontrolling interest.

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