Earnings Per Share and Equity - Distributions (Details) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Class A
Distributions
Ordinary income (usd per share)	$ 0.2686	$ 0.1490	$ 0.1251
Capital gain (usd per share)	0.2439	0.1423	0.1339
Return of capital (usd per share)	0	0.1463	0.3662
Total distributions paid (usd per share)	0.5125	0.4376	0.6252
Class C
Distributions
Ordinary income (usd per share)	0.2686	0.1241	0.1101
Capital gain (usd per share)	0.2439	0.1185	0.1178
Return of capital (usd per share)	0	0.1218	0.3220
Total distributions paid (usd per share)	$ 0.5125	$ 0.3644	$ 0.5499