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v3.20.1

Noncontrolling Interest (Details) | 3 Months Ended
--- | ---
Mar. 31, 2020 USD ($)
Noncontrolling Interests [Line Items] |
Capital contributions to joint venture | $ 0
Huen Electric Inc [Member] |
Noncontrolling Interests [Line Items] |
Distributions to partners | $ 0

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