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Asset Acquisition, Percentage of Shares Acquired

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Number Of Fuel Cell Projects

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Number Of Megawatts Produced By Fuel Cell Projects

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Amount of liabilities incurred and payable to vendors for goods and services received, and accrued liabilities classified as other.

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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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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Amount of liabilities assumed at the acquisition date.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Fair value at acquisition-date of the equity interest in the acquiree held by the acquirer, immediately before the acquisition date for businesses combined in stages.

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Percentage of equity in the acquiree held by the acquirer immediately before the acquisition date in a business combination.

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In a business combination achieved in stages, this element represents the amount of gain recognized by the entity as a result of remeasuring to fair value the equity interest in the acquiree it held before the business combination.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Term of lessee's finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Carrying amount of the equity interests owned by noncontrolling shareholders, partners, or other equity holders in joint ventures included in the entity's consolidated financial statements.

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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Amount of noncurrent assets classified as other.

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The cash outflow to acquire asset without physical form usually arising from contractual or other legal rights, excluding goodwill.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Useful life of assets related to fuels owned by public utility, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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ACQUISITIONS & BUSINESS COMBINATIONS - Narrative (Details) $ in Thousands					2 Months Ended	12 Months Ended
	Dec. 23, 2020 USD ($)	Aug. 12, 2020 USD ($) project MW	Aug. 07, 2020 USD ($)	Aug. 31, 2019 USD ($)	Aug. 21, 2020 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Aug. 06, 2020
Business Combination, Separately Recognized Transactions [Line Items]
Cash and cash equivalents						$ 34,045	$ 6,417
Other						143,650	111,282
Remeasurement gain						$ 1,971	$ 0	$ 0
Annadale
Business Combination, Separately Recognized Transactions [Line Items]
Number of fuel cell projects \| project		2
Number of megawatts produced by fuel cell projects \| MW		7.5
Marina Energy LLC \| Annadale
Business Combination, Separately Recognized Transactions [Line Items]
Useful life of fuel cell modules (in years)						35 years
Finance lease term (in years)						35 years
Annadale
Business Combination, Separately Recognized Transactions [Line Items]
Non-controlling interest						$ 6,000
Finance lease term (in years)		35 years
Annadale \| Catamaran
Business Combination, Separately Recognized Transactions [Line Items]
Ownership interest (as a percent)		100.00%
Annadale \| Marina Energy LLC
Business Combination, Separately Recognized Transactions [Line Items]
Amount invested		$ 86,200				80,200
Annadale \| Marina Energy LLC \| Annadale
Business Combination, Separately Recognized Transactions [Line Items]
Property, plant and equipment						80,600
Cash and cash equivalents						23,900
Other						4,300
Accounts payable and other current & noncurrent liabilities						$ 21,200
Dairy Farm Development Rights Previously Owned by REV LNG
Business Combination, Separately Recognized Transactions [Line Items]
Consideration for dairy farm development rights	$ 10,000
Annadale \| Marina Energy LLC \| Annadale
Business Combination, Separately Recognized Transactions [Line Items]
Ownership by parent (as a percent)		93.00%
EnerConnex, LLC
Business Combination, Separately Recognized Transactions [Line Items]
Equity interest acquired (as a percent)			75.00%
Consideration paid			$ 7,500
Equity interest in acquiree previously held (as a percent)									25.00%
Remeasurement gain			2,000
Fair value of the previously held equity interest			2,500
Assumed liabilities			$ 154
Solar Energy Projects Acquisition
Business Combination, Separately Recognized Transactions [Line Items]
Consideration paid					$ 3,800
AEP Acquisition
Business Combination, Separately Recognized Transactions [Line Items]
Consideration paid				$ 4,000