Commitments and Contingencies (Details Textual) $ in Millions	Dec. 31, 2019 USD ($)
Commitments and Contingencies (Textual)
Purchase and other commitments	$ 138.3
Future purchases of electricity	102.1
Purchase of renewable energy credit	36.2
Letters of credit	1.8
Electricity Purchase Commitment Included In Other Commitment	102.1
Genie Retail Energy [Member]
Commitments and Contingencies (Textual)
Aggregate performance bond outstanding	12.5
BP [Member]
Commitments and Contingencies (Textual)
Payment of trade accounts payable to BP Energy	14.9
Advance payment	2.5
Trade Accounts Receivable [Member]
Commitments and Contingencies (Textual)
Assets pledged as collateral to BP Energy	47.8
Restricted Cash [Member]
Commitments and Contingencies (Textual)
Assets pledged as collateral to BP Energy	$ 1.6

No definition available.

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Electricity purchase commitment included in other commitment.

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Performance bond outstanding.

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No definition available.

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- Definition

Purchase of renewable energy credit.

+ References

No definition available.

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- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

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- Definition

Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

+ References

No definition available.

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The carrying amount, as of the date of the latest financial statement presented, of all assets that are pledged as collateral for the payment of the related debt obligation primarily arising from secured borrowings, repurchase agreements or other current or potential obligations, where the secured party does not have the right by contract or custom to sell or re-pledge the collateral and therefore are not reclassified and separately reported in the statement of financial position.

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- Definition

Carrying amount as of the balance sheet date of expenditures made in advance of when the economic benefit of the cost will be realized, and which will be expensed in future periods with the passage of time or when a triggering event occurs.

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