Significant Equity Method Investments - Summary of Income Statement Information of Equity Method Investments (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Equity Method Investments And Joint Ventures [Abstract]
Total revenues	$ 56,472	$ 54,567	$ 13,855
Net loss	$ (25,778)	$ (10,582)	$ (4,614)

The amount of net income (loss) reported by an equity method investment of the entity.

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