Equity Method Investment - Ownership (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Equity Method Investment, Proportional Ownership Activity [Roll Forward]
Opening balance	$ 4,851	$ 5,218	$ 5,078	$ 5,060
Distributions	(381)	(591)	(1,230)	(1,650)
Share of net income	625	667	1,247	1,884
Closing balance	$ 5,095	$ 5,294	$ 5,095	$ 5,294

Amount of income (loss) for proportionate share of equity method investee's income (loss).

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