(Loss) Earnings Per Share and Equity - Narratives (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Distributions Declared
Interest expense	$ 10,354	$ 12,044	$ 20,843	$ 24,401
Distributions payable	8,809		8,809		$ 22,745
Class C
Distributions Declared
Interest expense	$ 100	$ 100	$ 100	$ 100
Common Stock | Class C
Distributions Declared
Distributions declared per share (in dollars per share)	$ 0.0438	$ 0.1376	$ 0.1820	$ 0.2749
Common Stock | Class A
Distributions Declared
Distributions declared per share (in dollars per share)	$ 0.0625	$ 0.1563	$ 0.2188	$ 0.3126