Quarterly report pursuant to Section 13 or 15(d)

Equity Method Investments - Additional Information (Details)

v3.19.3
Equity Method Investments - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Equity Method Investments and Joint Ventures [Abstract]        
Income (loss) from equity method investments $ 5,984 $ 11,671 $ 18,114 $ 19,969