Equity Offerings, Offering Expenses, and Distributions - Schedule of Preferred Stock Dividends (Details) - USD ($) $ / shares in Units, $ in Thousands																																							1 Months Ended	9 Months Ended
	Apr. 01, 2024	Mar. 01, 2024	Feb. 08, 2024	Feb. 01, 2024	Jan. 25, 2024	Jan. 02, 2024	Dec. 01, 2023	Nov. 08, 2023	Nov. 01, 2023	Oct. 02, 2023	Sep. 01, 2023	Aug. 29, 2023	Aug. 01, 2023	May 09, 2023	Apr. 03, 2023	Mar. 01, 2023	Feb. 08, 2023	Feb. 01, 2023	Jan. 03, 2023	Dec. 01, 2022	Nov. 09, 2022	Nov. 08, 2022	Nov. 01, 2022	Oct. 03, 2022	Sep. 01, 2022	Aug. 29, 2022	Aug. 23, 2022	Aug. 01, 2022	May 09, 2022	May 02, 2022	Apr. 01, 2022	Mar. 01, 2022	Feb. 07, 2022	Feb. 01, 2022	Nov. 05, 2021	Jul. 12, 2021	Oct. 30, 2020	Aug. 03, 2020	Mar. 31, 2024	Mar. 31, 2024	Mar. 31, 2023
5.50% Preferred Stock
Class of Stock [Line Items]
Dividend rate																																						5.50%		5.50%
Amount ($ per share), before pro ration for partial periods								$ 0.114583				$ 0.114583		$ 0.114583			$ 0.114583				$ 0.114583	$ 0.114583				$ 0.114583			$ 0.114583				$ 0.114583		$ 0.114583
Amount Distributed						$ 3,854	$ 3,879		$ 3,883	$ 3,907	$ 3,961		$ 3,968		$ 3,821	$ 3,831		$ 3,845	$ 4,051	$ 4,056			$ 4,077	$ 3,928	$ 3,721			$ 3,104			$ 4,036	$ 4,039		$ 4,045						$ 34,949	$ 35,057
6.50% Preferred Stock
Class of Stock [Line Items]
Dividend rate																																					6.50%	6.50%		6.50%
Amount ($ per share), before pro ration for partial periods			$ 0.135417					$ 0.135417				$ 0.135417		0.135417			$ 0.135417				$ 0.135417
Amount Distributed	$ 3,777			$ 3,719		$ 3,627	$ 3,512		3,375	$ 3,279	$ 3,111		2,978		$ 2,201	$ 1,959		1,675	$ 1,433	$ 978																			$ 3,749	$ 31,127	8,246
5.35% Preferred Stock
Class of Stock [Line Items]
Dividend rate																																				5.35%				5.35%
Amount ($ per share), before pro ration for partial periods														$ 0.334375								$ 0.334375				$ 0.334375	$ 0.334375		$ 0.334375				$ 0.334375
Amount Distributed									$ 1,967				$ 1,983					$ 1,756										$ 2,006		$ 2,006				$ 2,006						$ 5,706	6,018
Floating Rate Preferred Stock Holders
Class of Stock [Line Items]
Amount ($ per share), before pro ration for partial periods			$ 0.152564		$ 0.152830
Amount Distributed		$ 81																																							$ 308
Floating Rate Preferred Stock Holders | Subsequent Event
Class of Stock [Line Items]
Amount Distributed	$ 227