ACQUISITIONS - India Wind Portfolio (Details) - India Wind Portfolio ₨ in Billions	1 Months Ended	12 Months Ended
Jul. 08, 2019 USD ($)	Dec. 31, 2019 USD ($)	Jul. 08, 2019 INR (₨)
Disclosure of detailed information about business combination [line items]
Consideration transferred, acquisition-date fair value	$ 67,000,000		₨ 4.6
Contingent payment expected	12,000,000		₨ 0.8
Equity interests of acquirer	0.25
Acquisition costs (less than)	$ 1,000,000
Revenue of combined entity as if combination occurred at beginning of period		$ 37,000,000

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Consideration Transferred, Contingent Payment

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The fair value, at acquisition date, of the consideration transferred in a business combination. [Refer: Business combinations [member]]

+ References

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

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The fair value, at the acquisition date, of equity interests of the acquirer transferred as consideration in a business combination. [Refer: Business combinations [member]]

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The revenue of the combined entity as though the acquisition date for all business combinations that occurred during the year had been as of the beginning of the annual reporting period. [Refer: Business combinations [member]; Revenue]

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