Related Party Transactions (Details) - Flatonia Energy, LLC - USD ($)	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Related Party Transaction [Line Items]
Payments made to related party	$ 4,300,000	$ 6,200,000
Payments received from related party	1,300,000	$ 2,100,000
Amounts receivable from related party	1,000,000		$ 800,000
Amounts payable to related party	$ 1,256,670.73		$ 1,600,000
Class A Common Stock
Related Party Transaction [Line Items]
Percentage of common stock acquired	10.30%
Common Class A and Common Class B
Related Party Transaction [Line Items]
Percentage of common stock acquired	4.60%

For an unclassified balance sheet, amounts due from related parties including affiliates, employees, joint ventures, officers and stockholders, immediate families thereof, and pension funds.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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