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Equity - Non-controlling Interests (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2020 | Mar. 31, 2019 | Dec. 31, 2019
Variable Interest Entity [Line Items] |  |  |
Net income attributable to non-controlling interests | $ 2,817 | $ 547 |
Carrying amount of investments held by non-controlling interests in VIEs | 4,686 |  | $ 3,539
Distributions to non-controlling interests | 1,963 | $ 528 |
Primary Beneficiary |  |  |
Variable Interest Entity [Line Items] |  |  |
Carrying value of the investments held by Quanta in variable interest entities | 13,100 |  | 9,600
Carrying amount of investments held by non-controlling interests in VIEs | $ 4,700 |  | $ 3,500

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