Equity Offerings, Offering Expenses, and Distributions - Preferred Stock Narrative (Details) $ / shares in Units, $ in Thousands									3 Months Ended	9 Months Ended
	May 08, 2024 $ / shares	Dec. 29, 2023 number_of_month $ / shares	Oct. 30, 2023 USD ($) $ / shares shares	Jun. 09, 2022 $ / shares shares	Jul. 12, 2021 USD ($) number_of_month $ / shares shares	May 26, 2021 $ / shares	Oct. 30, 2020 $ / shares shares	Aug. 03, 2020 shares	Mar. 31, 2024 USD ($) $ / shares shares	Mar. 31, 2024 USD ($) number_of_month $ / shares shares	Mar. 31, 2023 USD ($)	Jun. 03, 2024 $ / shares	May 01, 2024 $ / shares	Apr. 26, 2024 $ / shares	Dec. 28, 2023 shares	Jun. 30, 2023 USD ($) $ / shares shares	Feb. 10, 2023 shares	Oct. 11, 2022 shares	Jun. 30, 2022 $ / shares	Feb. 18, 2022 shares	Feb. 17, 2022 shares	Jul. 15, 2021 shares	Jun. 30, 2021 $ / shares	May 19, 2021 shares
Class of Stock [Line Items]
Temporary equity, shares authorized (in shares) | shares									647,900,000	647,900,000						447,900,000
Temporary equity, par value (usd per share)									$ 0.001	$ 0.001						$ 0.001
Temporary equity, liquidation preference (usd per share)									25.00	25.00						$ 25.00
Share price (usd per share)									$ 25.00	$ 25.00
Common stock, consecutive trading days, volume weighted average price										5 days
Redemption eligibility term										5 years
Repurchase of Preferred Stock (in shares) | shares										711,497
Repurchase of Preferred Stock | $										$ 17,155
Time dividends have remained unpaid										2 years
Dividends payable | $									$ 25,274	$ 25,274						$ 31,033
Dividend Declared | Forecast
Class of Stock [Line Items]
Dividends payable (usd per share)												$ 0.152564
Dividend Declared | Subsequent Event
Class of Stock [Line Items]
Dividends payable (usd per share)													$ 0.152564
5.50% Preferred Stock
Class of Stock [Line Items]
Temporary equity, shares authorized (in shares) | shares				80,000,000																10,000,000
Temporary equity, par value (usd per share)				$ 0.001
Temporary equity, liquidation preference (usd per share)				$ 25.00
Dividend rate				5.50%			5.50%		5.50%	5.50%	5.50%
Preferred stock, par value (usd per share)							$ 0.001
Involuntary Liquidating Preference per Unit (usd per share)							$ 25.00		$ 25.00	$ 25.00						$ 25			$ 25				$ 25
Dividend rate								5.50%		5.50%
Share price (usd per share)									$ 23.75	$ 23.75
Benchmark percept of share price									95.00%	95.00%
Redemption price rate									100.00%	100.00%
Calculated interest basis, days										360 days
Calculated interest basis, number of months | number_of_month										12
Calculated interest basis, days in month										30 days
Payments of dividends | $										$ 34,949	$ 35,057
5.50% Preferred Stock | Subsequent Event
Class of Stock [Line Items]
Temporary equity, liquidation preference (usd per share)	$ 25.00
Dividend rate	5.50%
5.50% Preferred Stock | Dividend Declared | Forecast
Class of Stock [Line Items]
Dividends payable (usd per share)												0.114583
5.50% Preferred Stock | Dividend Declared | Subsequent Event
Class of Stock [Line Items]
Dividends payable (usd per share)													0.114583
5.50% Series A1 Preferred Stock
Class of Stock [Line Items]
Dividend rate				5.50%
Share price (usd per share)									$ 25.00	$ 25.00
5.50% Series M1 Preferred Stock
Class of Stock [Line Items]
Dividend rate				5.50%
5.50% Series AA1 Preferred Stock
Class of Stock [Line Items]
Dividend rate							5.50%
Share price (usd per share)									25.00	25.00
5.50% Series MM1 Preferred Stock
Class of Stock [Line Items]
Dividend rate							5.50%
5.50% Series A2 Preferred Stock
Class of Stock [Line Items]
Preferred stock, par value (usd per share)						$ 0.001
Involuntary Liquidating Preference per Unit (usd per share)						$ 25.00
Dividend rate						5.50%
Preferred stock, shares authorized (in shares) | shares																								187,000
Share price (usd per share)									$ 25.00	$ 25.00
6.50% Preferred Stock
Class of Stock [Line Items]
Dividend rate									6.50%	6.50%	6.50%
Involuntary Liquidating Preference per Unit (usd per share)									$ 25	$ 25						$ 25
Dividend rate							6.50%	6.50%		6.50%
Payments of dividends | $										$ 31,127	$ 8,246
Dividends payable | $									$ 6	$ 6
6.50% Preferred Stock | Subsequent Event
Class of Stock [Line Items]
Temporary equity, liquidation preference (usd per share)	$ 25.00
Dividend rate	6.50%
6.50% Preferred Stock | Dividend Declared | Forecast
Class of Stock [Line Items]
Dividends payable (usd per share)												$ 0.135417
6.50% Preferred Stock | Dividend Declared | Subsequent Event
Class of Stock [Line Items]
Dividends payable (usd per share)													0.135417
Series A3
Class of Stock [Line Items]
Temporary equity, shares authorized (in shares) | shares									80,000,000	80,000,000						72,000,000
Dividend rate				6.50%
Series M3
Class of Stock [Line Items]
Temporary equity, shares authorized (in shares) | shares									80,000,000	80,000,000						72,000,000
Dividend rate				6.50%
Conversion of stock, shares converted (in shares) | shares									0
Series AA2
Class of Stock [Line Items]
Temporary equity, shares authorized (in shares) | shares									20,000,000	20,000,000						20,000,000
Dividend rate							6.50%
Series MM2
Class of Stock [Line Items]
Temporary equity, shares authorized (in shares) | shares									20,000,000	20,000,000						20,000,000
Dividend rate							6.50%
Convertible Preferred Stock
Class of Stock [Line Items]
Authorized and unissued shares of common stock reclassified into shares of preferred stock (in shares) | shares																								1,000,000
Convertible Preferred Stock | Per Calendar Month
Class of Stock [Line Items]
Redemption limit, percent									2.00%	2.00%
Convertible Preferred Stock | Per Fiscal Quarter
Class of Stock [Line Items]
Redemption limit, percent									5.00%	5.00%
Convertible Preferred Stock | Per Annual Redemption Period
Class of Stock [Line Items]
Redemption limit, percent									20.00%	20.00%
Convertible Preferred Stock | Preferred Capital Securities, LLC Dealer Manager Agreement
Class of Stock [Line Items]
Authorized and unissued shares of common stock reclassified into shares of preferred stock (in shares) | shares				60,000,000				120,000,000									60,000,000	120,000,000
Convertible Preferred Stock | Preferred Capital Securities, LLC Dealer Manager Agreement | Filing One
Class of Stock [Line Items]
Authorized and unissued shares of common stock reclassified into shares of preferred stock (in shares) | shares															160,000,000
Convertible Preferred Stock | Preferred Capital Securities, LLC Dealer Manager Agreement | Filing Two
Class of Stock [Line Items]
Authorized and unissued shares of common stock reclassified into shares of preferred stock (in shares) | shares															40,000,000
Convertible Preferred Stock | InspereX LLC Dealer Manager Agreement
Class of Stock [Line Items]
Authorized and unissued shares of common stock reclassified into shares of preferred stock (in shares) | shares							80,000,000											80,000,000			80,000,000
5.35% Preferred Stock
Class of Stock [Line Items]
Authorized and unissued shares of common stock reclassified into shares of preferred stock (in shares) | shares																						6,900,000
Preferred stock, par value (usd per share)					$ 0.001
Involuntary Liquidating Preference per Unit (usd per share)									$ 25	$ 25						$ 25			$ 25
Dividend rate					5.35%					5.35%
Preferred stock, shares authorized (in shares) | shares					6,000,000
Share price (usd per share)					$ 25.00
Preferred stock, liquidation value | $					$ 150,000
Overallotment purchase option term					30 days
Repurchase of Preferred Stock (in shares) | shares									0	80,303
Change of control triggering event threshold					120 days
Preferred stock, conversion ratio					6.03865
Calculated interest basis, days					360 days
Calculated interest basis, number of months | number_of_month					12
Calculated interest basis, days in month					30 days
Payments of dividends | $										$ 5,706	$ 6,019
Dividends payable | $									$ 1,171	$ 1,171
5.35% Preferred Stock | Subsequent Event
Class of Stock [Line Items]
Temporary equity, liquidation preference (usd per share)	$ 25.00
Dividend rate	5.35%
5.35% Preferred Stock | Dividend Declared | Subsequent Event
Class of Stock [Line Items]
Dividends payable (usd per share)													$ 0.334375
5.35% Preferred Stock | Over-Allotment Option
Class of Stock [Line Items]
Preferred stock, shares authorized (in shares) | shares					900,000
Series A Preferred Stock
Class of Stock [Line Items]
Temporary equity, shares authorized (in shares) | shares									6,900,000	6,900,000						6,900,000
Repurchase of Preferred Stock | $										$ 1,279
Average repurchase price (usd per share)										$ 15.76
Difference in the consideration transferred and the net carrying value | $										$ 1,936
Net (loss) on redemptions of Preferred Stock | $										$ 657
5.50% Preferred Stock DRIP
Class of Stock [Line Items]
Dividend rate										5.50%
6.50% Preferred Stock DRIP
Class of Stock [Line Items]
Dividend rate										6.50%
Floating Rate Preferred Stock
Class of Stock [Line Items]
Involuntary Liquidating Preference per Unit (usd per share)									$ 25	$ 25
Share price (usd per share)		$ 25.00
Calculated interest basis, days		360 days
Calculated interest basis, number of months | number_of_month		12
Calculated interest basis, days in month		30 days
Annualized floating rate		2.00%
Minimum annualized dividend rate		6.50%
Maximum annualized dividend rate		8.00%
Payments of dividends | $										$ 308
Dividends payable | $									$ 18	$ 18
Floating Rate Preferred Stock | Subsequent Event
Class of Stock [Line Items]
Temporary equity, liquidation preference (usd per share)	$ 25.00
Dividend rate	7.32241%
Common Stock, par value $0.001 per share | Dividend Declared | Subsequent Event
Class of Stock [Line Items]
Dividends payable (usd per share)														$ 0.06
5.35% Series A Fixed Rate Cumulative Perpetual Preferred Stock, par value $0.001 | Tender Offer
Class of Stock [Line Items]
Repurchase of Preferred Stock (in shares) | shares			631,194
Repurchase of Preferred Stock | $			$ 15,780
Average repurchase price (usd per share)			$ 16.00
Net (loss) on redemptions of Preferred Stock | $			$ 5,197
Stock repurchase program, number of shares authorized to be repurchased | shares			5,882,351
Average cost per share, gross (in dollars per share)			$ 15.88